ODIM_H5

import xarray as xr
from open_radar_data import DATASETS

import xradar as xd

Download

Fetching ODIM_H5 radar data file from open-radar-data repository.

filename = DATASETS.fetch("71_20181220_060628.pvol.h5")

xr.open_dataset

Making use of the xarray odim backend. We also need to provide the group. We use CfRadial2 group access pattern.

ds = xr.open_dataset(filename, group="sweep_0", engine="odim")
display(ds)

<xarray.Dataset> Size: 40MB
Dimensions:            (azimuth: 360, range: 1200)
Coordinates:
  * azimuth            (azimuth) float32 1kB 0.5 1.5 2.5 ... 357.5 358.5 359.5
    elevation          (azimuth) float64 3kB ...
    time               (azimuth) datetime64[ns] 3kB ...
  * range              (range) float32 5kB 125.0 375.0 ... 2.996e+05 2.999e+05
    longitude          float64 8B ...
    latitude           float64 8B ...
    altitude           float64 8B ...
Data variables: (12/18)
    DBZH               (azimuth, range) float64 3MB ...
    DBZH_CLEAN         (azimuth, range) float64 3MB ...
    VRADDH             (azimuth, range) float64 3MB ...
    VRADH              (azimuth, range) float64 3MB ...
    WRADH              (azimuth, range) float64 3MB ...
    TH                 (azimuth, range) float64 3MB ...
    ...                 ...
    sweep_mode         <U20 80B ...
    sweep_number       int64 8B ...
    prt_mode           <U7 28B ...
    follow_mode        <U7 28B ...
    sweep_fixed_angle  float64 8B ...
    nyquist_velocity   float64 8B ...
Attributes:
    Conventions:  ODIM_H5/V2_2

xarray.Dataset

• Dimensions:
  • azimuth: 360
  • range: 1200
• Coordinates: (7)
  • azimuth
    (azimuth)
    float32
    0.5 1.5 2.5 ... 357.5 358.5 359.5

    standard_name :

    ray_azimuth_angle

    long_name :

    azimuth_angle_from_true_north

    units :

    degrees

    axis :

    radial_azimuth_coordinate

    array([  0.5,   1.5,   2.5, ..., 357.5, 358.5, 359.5],
          shape=(360,), dtype=float32)

  • elevation
    (azimuth)
    float64
    ...

    standard_name :

    ray_elevation_angle

    long_name :

    elevation_angle_from_horizontal_plane

    units :

    degrees

    axis :

    radial_elevation_coordinate

    [360 values with dtype=float64]

  • time
    (azimuth)
    datetime64[ns]
    ...

    standard_name :

    time

    [360 values with dtype=datetime64[ns]]

  • range
    (range)
    float32
    125.0 375.0 ... 2.996e+05 2.999e+05

    units :

    meters

    standard_name :

    projection_range_coordinate

    long_name :

    range_to_measurement_volume

    axis :

    radial_range_coordinate

    meters_between_gates :

    250.0

    spacing_is_constant :

    true

    meters_to_center_of_first_gate :

    125.0

    array([1.25000e+02, 3.75000e+02, 6.25000e+02, ..., 2.99375e+05, 2.99625e+05,
           2.99875e+05], shape=(1200,), dtype=float32)

  • longitude
    ()
    float64
    ...

    long_name :

    longitude

    units :

    degrees_east

    standard_name :

    longitude

    [1 values with dtype=float64]

  • latitude
    ()
    float64
    ...

    long_name :

    latitude

    units :

    degrees_north

    positive :

    up

    standard_name :

    latitude

    [1 values with dtype=float64]

  • altitude
    ()
    float64
    ...

    long_name :

    altitude

    units :

    meters

    standard_name :

    altitude

    [1 values with dtype=float64]

• Data variables: (18)
  • DBZH
    (azimuth, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    dBZ

    standard_name :

    radar_equivalent_reflectivity_factor_h

    long_name :

    Equivalent reflectivity factor H

    [432000 values with dtype=float64]

  • DBZH_CLEAN
    (azimuth, range)
    float64
    ...

    _Undetect :

    1.0

    units :

    dBZ

    standard_name :

    radar_equivalent_reflectivity_factor_h

    long_name :

    Equivalent reflectivity factor H

    [432000 values with dtype=float64]

  • VRADDH
    (azimuth, range)
    float64
    ...

    _Undetect :

    1.0

    units :

    meters per seconds

    standard_name :

    radial_velocity_of_scatterers_away_from_instrument_h

    long_name :

    Radial velocity of scatterers away from instrument H

    [432000 values with dtype=float64]

  • VRADH
    (azimuth, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    meters per seconds

    standard_name :

    radial_velocity_of_scatterers_away_from_instrument_h

    long_name :

    Radial velocity of scatterers away from instrument H

    [432000 values with dtype=float64]

  • WRADH
    (azimuth, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    meters per seconds

    standard_name :

    radar_doppler_spectrum_width_h

    long_name :

    Doppler spectrum width H

    [432000 values with dtype=float64]

  • TH
    (azimuth, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    unitless

    standard_name :

    radar_linear_equivalent_reflectivity_factor_h

    long_name :

    Linear total power H (uncorrected reflectivity)

    [432000 values with dtype=float64]

  • ZDR
    (azimuth, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    dB

    standard_name :

    radar_differential_reflectivity_hv

    long_name :

    Log differential reflectivity H/V

    [432000 values with dtype=float64]

  • RHOHV
    (azimuth, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    unitless

    standard_name :

    radar_correlation_coefficient_hv

    long_name :

    Correlation coefficient HV

    [432000 values with dtype=float64]

  • PHIDP
    (azimuth, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    degrees

    standard_name :

    radar_differential_phase_hv

    long_name :

    Differential phase HV

    [432000 values with dtype=float64]

  • KDP
    (azimuth, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    degrees per kilometer

    standard_name :

    radar_specific_differential_phase_hv

    long_name :

    Specific differential phase HV

    [432000 values with dtype=float64]

  • SNRH
    (azimuth, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    unitless

    standard_name :

    signal_noise_ratio_h

    long_name :

    Signal Noise Ratio H

    [432000 values with dtype=float64]

  • CLASS
    (azimuth, range)
    float32
    ...

    _Undetect :

    -2.0

    [432000 values with dtype=float32]

  • sweep_mode
    ()
    <U20
    ...

    [1 values with dtype=<U20]

  • sweep_number
    ()
    int64
    ...

    [1 values with dtype=int64]

  • prt_mode
    ()
    <U7
    ...

    [1 values with dtype=<U7]

  • follow_mode
    ()
    <U7
    ...

    [1 values with dtype=<U7]

  • sweep_fixed_angle
    ()
    float64
    ...

    [1 values with dtype=float64]

  • nyquist_velocity
    ()
    float64
    ...

    standard_name :

    nyquist_velocity

    units :

    m s-1

    [1 values with dtype=float64]

• Attributes: (1)

  Conventions :

  ODIM_H5/V2_2

ds.sweep_fixed_angle.values

array(0.5)

Plot Time vs. Azimuth

ds.azimuth.plot()

[<matplotlib.lines.Line2D at 0x7b4474339a90>]

Plot Range vs. Time

ds.DBZH.plot()

<matplotlib.collections.QuadMesh at 0x7b44743912b0>

Plot Range vs. Azimuth

We need to sort by azimuth and specify the y-coordinate.

ds.DBZH.sortby("azimuth").plot(y="azimuth")

<matplotlib.collections.QuadMesh at 0x7b446c04da90>

backend_kwargs

Beside first_dim there are several additional backend_kwargs for the odim backend, which handle different aspects of angle alignment. This comes into play, when azimuth and/or elevation arrays are not evenly spacend and other issues.

?xd.io.OdimBackendEntrypoint

ds = xr.open_dataset(filename, group="sweep_0", engine="odim", first_dim="time")
display(ds)

<xarray.Dataset> Size: 40MB
Dimensions:            (time: 360, range: 1200)
Coordinates:
  * time               (time) datetime64[ns] 3kB 2018-12-20T06:06:28.04027776...
    elevation          (time) float64 3kB ...
    azimuth            (time) float32 1kB ...
  * range              (range) float32 5kB 125.0 375.0 ... 2.996e+05 2.999e+05
    longitude          float64 8B ...
    latitude           float64 8B ...
    altitude           float64 8B ...
Data variables: (12/18)
    DBZH               (time, range) float64 3MB ...
    DBZH_CLEAN         (time, range) float64 3MB ...
    VRADDH             (time, range) float64 3MB ...
    VRADH              (time, range) float64 3MB ...
    WRADH              (time, range) float64 3MB ...
    TH                 (time, range) float64 3MB ...
    ...                 ...
    sweep_mode         <U20 80B ...
    sweep_number       int64 8B ...
    prt_mode           <U7 28B ...
    follow_mode        <U7 28B ...
    sweep_fixed_angle  float64 8B ...
    nyquist_velocity   float64 8B ...
Attributes:
    Conventions:  ODIM_H5/V2_2

xarray.Dataset

• Dimensions:
  • time: 360
  • range: 1200
• Coordinates: (7)
  • time
    (time)
    datetime64[ns]
    2018-12-20T06:06:28.040277760 .....

    standard_name :

    time

    array(['2018-12-20T06:06:28.040277760', '2018-12-20T06:06:28.120833280',
           '2018-12-20T06:06:28.201388544', ..., '2018-12-20T06:06:56.798569472',
           '2018-12-20T06:06:56.879124992', '2018-12-20T06:06:56.959680256'],
          shape=(360,), dtype='datetime64[ns]')

  • elevation
    (time)
    float64
    ...

    standard_name :

    ray_elevation_angle

    long_name :

    elevation_angle_from_horizontal_plane

    units :

    degrees

    axis :

    radial_elevation_coordinate

    [360 values with dtype=float64]

  • azimuth
    (time)
    float32
    ...

    standard_name :

    ray_azimuth_angle

    long_name :

    azimuth_angle_from_true_north

    units :

    degrees

    axis :

    radial_azimuth_coordinate

    [360 values with dtype=float32]

  • range
    (range)
    float32
    125.0 375.0 ... 2.996e+05 2.999e+05

    units :

    meters

    standard_name :

    projection_range_coordinate

    long_name :

    range_to_measurement_volume

    axis :

    radial_range_coordinate

    meters_between_gates :

    250.0

    spacing_is_constant :

    true

    meters_to_center_of_first_gate :

    125.0

    array([1.25000e+02, 3.75000e+02, 6.25000e+02, ..., 2.99375e+05, 2.99625e+05,
           2.99875e+05], shape=(1200,), dtype=float32)

  • longitude
    ()
    float64
    ...

    long_name :

    longitude

    units :

    degrees_east

    standard_name :

    longitude

    [1 values with dtype=float64]

  • latitude
    ()
    float64
    ...

    long_name :

    latitude

    units :

    degrees_north

    positive :

    up

    standard_name :

    latitude

    [1 values with dtype=float64]

  • altitude
    ()
    float64
    ...

    long_name :

    altitude

    units :

    meters

    standard_name :

    altitude

    [1 values with dtype=float64]

• Data variables: (18)
  • DBZH
    (time, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    dBZ

    standard_name :

    radar_equivalent_reflectivity_factor_h

    long_name :

    Equivalent reflectivity factor H

    [432000 values with dtype=float64]

  • DBZH_CLEAN
    (time, range)
    float64
    ...

    _Undetect :

    1.0

    units :

    dBZ

    standard_name :

    radar_equivalent_reflectivity_factor_h

    long_name :

    Equivalent reflectivity factor H

    [432000 values with dtype=float64]

  • VRADDH
    (time, range)
    float64
    ...

    _Undetect :

    1.0

    units :

    meters per seconds

    standard_name :

    radial_velocity_of_scatterers_away_from_instrument_h

    long_name :

    Radial velocity of scatterers away from instrument H

    [432000 values with dtype=float64]

  • VRADH
    (time, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    meters per seconds

    standard_name :

    radial_velocity_of_scatterers_away_from_instrument_h

    long_name :

    Radial velocity of scatterers away from instrument H

    [432000 values with dtype=float64]

  • WRADH
    (time, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    meters per seconds

    standard_name :

    radar_doppler_spectrum_width_h

    long_name :

    Doppler spectrum width H

    [432000 values with dtype=float64]

  • TH
    (time, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    unitless

    standard_name :

    radar_linear_equivalent_reflectivity_factor_h

    long_name :

    Linear total power H (uncorrected reflectivity)

    [432000 values with dtype=float64]

  • ZDR
    (time, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    dB

    standard_name :

    radar_differential_reflectivity_hv

    long_name :

    Log differential reflectivity H/V

    [432000 values with dtype=float64]

  • RHOHV
    (time, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    unitless

    standard_name :

    radar_correlation_coefficient_hv

    long_name :

    Correlation coefficient HV

    [432000 values with dtype=float64]

  • PHIDP
    (time, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    degrees

    standard_name :

    radar_differential_phase_hv

    long_name :

    Differential phase HV

    [432000 values with dtype=float64]

  • KDP
    (time, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    degrees per kilometer

    standard_name :

    radar_specific_differential_phase_hv

    long_name :

    Specific differential phase HV

    [432000 values with dtype=float64]

  • SNRH
    (time, range)
    float64
    ...

    _Undetect :

    0.0

    units :

    unitless

    standard_name :

    signal_noise_ratio_h

    long_name :

    Signal Noise Ratio H

    [432000 values with dtype=float64]

  • CLASS
    (time, range)
    float32
    ...

    _Undetect :

    -2.0

    [432000 values with dtype=float32]

  • sweep_mode
    ()
    <U20
    ...

    [1 values with dtype=<U20]

  • sweep_number
    ()
    int64
    ...

    [1 values with dtype=int64]

  • prt_mode
    ()
    <U7
    ...

    [1 values with dtype=<U7]

  • follow_mode
    ()
    <U7
    ...

    [1 values with dtype=<U7]

  • sweep_fixed_angle
    ()
    float64
    ...

    [1 values with dtype=float64]

  • nyquist_velocity
    ()
    float64
    ...

    standard_name :

    nyquist_velocity

    units :

    m s-1

    [1 values with dtype=float64]

• Attributes: (1)

  Conventions :

  ODIM_H5/V2_2

open_odim_datatree

The same works analoguous with the datatree loader. But additionally we can provide a sweep string, number or list.

?xd.io.open_odim_datatree

dtree = xd.io.open_odim_datatree(filename, sweep=8)
display(dtree)

<xarray.DataTree>
Group: /
│   Dimensions:              (sweep: 1)
│   Coordinates:
│       latitude             float64 8B ...
│       longitude            float64 8B ...
│       altitude             float64 8B ...
│   Dimensions without coordinates: sweep
│   Data variables:
│       volume_number        int64 8B 0
│       platform_type        <U5 20B 'fixed'
│       instrument_type      <U5 20B 'radar'
│       time_coverage_start  <U20 80B '2018-12-20T06:09:21Z'
│       time_coverage_end    <U20 80B '2018-12-20T06:09:34Z'
│       sweep_group_name     (sweep) int64 8B 8
│       sweep_fixed_angle    (sweep) float64 8B 7.4
│   Attributes:
│       Conventions:      ODIM_H5/V2_2
│       instrument_name:  None
│       version:          None
│       title:            None
│       institution:      None
│       references:       None
│       source:           None
│       history:          None
│       comment:          im/exported using xradar
└── Group: /sweep_0
        Dimensions:            (azimuth: 360, range: 590)
        Coordinates:
          * azimuth            (azimuth) float32 1kB 0.5 1.5 2.5 ... 357.5 358.5 359.5
            elevation          (azimuth) float64 3kB ...
            time               (azimuth) datetime64[ns] 3kB 2018-12-20T06:09:30.39167...
          * range              (range) float32 2kB 125.0 375.0 ... 1.471e+05 1.474e+05
        Data variables: (12/18)
            DBZH               (azimuth, range) float64 2MB ...
            DBZH_CLEAN         (azimuth, range) float64 2MB ...
            VRADDH             (azimuth, range) float64 2MB ...
            VRADH              (azimuth, range) float64 2MB ...
            WRADH              (azimuth, range) float64 2MB ...
            TH                 (azimuth, range) float64 2MB ...
            ...                 ...
            sweep_mode         <U20 80B ...
            sweep_number       int64 8B ...
            prt_mode           <U7 28B ...
            follow_mode        <U7 28B ...
            sweep_fixed_angle  float64 8B ...
            nyquist_velocity   float64 8B ...

xarray.DataTree

• /sweep_0(22)

  • Dimensions:
    • sweep: 1
    • azimuth: 360
    • range: 590
  • Coordinates: (4)
    • azimuth
      (azimuth)
      float32
      0.5 1.5 2.5 ... 357.5 358.5 359.5

      standard_name :

      ray_azimuth_angle

      long_name :

      azimuth_angle_from_true_north

      units :

      degrees

      axis :

      radial_azimuth_coordinate

      array([  0.5,   1.5,   2.5, ..., 357.5, 358.5, 359.5],shape=(360,), dtype=float32)

    • elevation
      (azimuth)
      float64
      ...

      standard_name :

      ray_elevation_angle

      long_name :

      elevation_angle_from_horizontal_plane

      units :

      degrees

      axis :

      radial_elevation_coordinate

      [360 values with dtype=float64]

    • time
      (azimuth)
      datetime64[ns]
      2018-12-20T06:09:30.391676928 .....

      standard_name :

      time

      array(['2018-12-20T06:09:30.391676928', '2018-12-20T06:09:30.430565888','2018-12-20T06:09:30.469454848', ..., '2018-12-20T06:09:30.275010048','2018-12-20T06:09:30.313899008', '2018-12-20T06:09:30.352787968'],shape=(360,), dtype='datetime64[ns]')

    • range
      (range)
      float32
      125.0 375.0 ... 1.471e+05 1.474e+05

      units :

      meters

      standard_name :

      projection_range_coordinate

      long_name :

      range_to_measurement_volume

      axis :

      radial_range_coordinate

      meters_between_gates :

      250.0

      spacing_is_constant :

      true

      meters_to_center_of_first_gate :

      125.0

      array([1.25000e+02, 3.75000e+02, 6.25000e+02, ..., 1.46875e+05, 1.47125e+05,1.47375e+05], shape=(590,), dtype=float32)

  • Data variables: (18)
    • DBZH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [212400 values with dtype=float64]

    • DBZH_CLEAN
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [212400 values with dtype=float64]

    • VRADDH
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [212400 values with dtype=float64]

    • VRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [212400 values with dtype=float64]

    • WRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radar_doppler_spectrum_width_h

      long_name :

      Doppler spectrum width H

      [212400 values with dtype=float64]

    • TH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_linear_equivalent_reflectivity_factor_h

      long_name :

      Linear total power H (uncorrected reflectivity)

      [212400 values with dtype=float64]

    • ZDR
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dB

      standard_name :

      radar_differential_reflectivity_hv

      long_name :

      Log differential reflectivity H/V

      [212400 values with dtype=float64]

    • RHOHV
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_correlation_coefficient_hv

      long_name :

      Correlation coefficient HV

      [212400 values with dtype=float64]

    • PHIDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees

      standard_name :

      radar_differential_phase_hv

      long_name :

      Differential phase HV

      [212400 values with dtype=float64]

    • KDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees per kilometer

      standard_name :

      radar_specific_differential_phase_hv

      long_name :

      Specific differential phase HV

      [212400 values with dtype=float64]

    • SNRH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      signal_noise_ratio_h

      long_name :

      Signal Noise Ratio H

      [212400 values with dtype=float64]

    • CLASS
      (azimuth, range)
      float32
      ...

      _Undetect :

      -2.0

      [212400 values with dtype=float32]

    • sweep_mode
      ()
      <U20
      ...

      [1 values with dtype=<U20]

    • sweep_number
      ()
      int64
      ...

      [1 values with dtype=int64]

    • prt_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • follow_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • sweep_fixed_angle
      ()
      float64
      ...

      [1 values with dtype=float64]

    • nyquist_velocity
      ()
      float64
      ...

      standard_name :

      nyquist_velocity

      units :

      m s-1

      [1 values with dtype=float64]

• Dimensions:
  • sweep: 1
• Coordinates: (3)
  • latitude
    ()
    float64
    ...

    long_name :

    latitude

    units :

    degrees_north

    positive :

    up

    standard_name :

    latitude

    [1 values with dtype=float64]

  • longitude
    ()
    float64
    ...

    long_name :

    longitude

    units :

    degrees_east

    standard_name :

    longitude

    [1 values with dtype=float64]

  • altitude
    ()
    float64
    ...

    long_name :

    altitude

    units :

    meters

    standard_name :

    altitude

    [1 values with dtype=float64]

• Data variables: (7)
  • volume_number
    ()
    int64
    0

    array(0)

  • platform_type
    ()
    <U5
    'fixed'

    array('fixed', dtype='<U5')

  • instrument_type
    ()
    <U5
    'radar'

    array('radar', dtype='<U5')

  • time_coverage_start
    ()
    <U20
    '2018-12-20T06:09:21Z'

    array('2018-12-20T06:09:21Z', dtype='<U20')

  • time_coverage_end
    ()
    <U20
    '2018-12-20T06:09:34Z'

    array('2018-12-20T06:09:34Z', dtype='<U20')

  • sweep_group_name
    (sweep)
    int64
    8

    array([8])

  • sweep_fixed_angle
    (sweep)
    float64
    7.4

    array([7.4])

• Attributes: (9)

  Conventions :

  ODIM_H5/V2_2

  instrument_name :

  None

  version :

  None

  title :

  None

  institution :

  None

  references :

  None

  source :

  None

  history :

  None

  comment :

  im/exported using xradar

Plot Sweep Range vs. Time

dtree["sweep_0"].ds.DBZH.sortby("time").plot(y="time")

<matplotlib.collections.QuadMesh at 0x7b446bf3ee90>

Plot Sweep Range vs. Azimuth

dtree["sweep_0"].ds.DBZH.plot()

<matplotlib.collections.QuadMesh at 0x7b446be41d10>

dtree = xd.io.open_odim_datatree(filename, sweep="sweep_8")
display(dtree)

<xarray.DataTree>
Group: /
│   Dimensions:              (sweep: 1)
│   Coordinates:
│       latitude             float64 8B ...
│       longitude            float64 8B ...
│       altitude             float64 8B ...
│   Dimensions without coordinates: sweep
│   Data variables:
│       volume_number        int64 8B 0
│       platform_type        <U5 20B 'fixed'
│       instrument_type      <U5 20B 'radar'
│       time_coverage_start  <U20 80B '2018-12-20T06:09:21Z'
│       time_coverage_end    <U20 80B '2018-12-20T06:09:34Z'
│       sweep_group_name     (sweep) int64 8B 8
│       sweep_fixed_angle    (sweep) float64 8B 7.4
│   Attributes:
│       Conventions:      ODIM_H5/V2_2
│       instrument_name:  None
│       version:          None
│       title:            None
│       institution:      None
│       references:       None
│       source:           None
│       history:          None
│       comment:          im/exported using xradar
└── Group: /sweep_0
        Dimensions:            (azimuth: 360, range: 590)
        Coordinates:
          * azimuth            (azimuth) float32 1kB 0.5 1.5 2.5 ... 357.5 358.5 359.5
            elevation          (azimuth) float64 3kB ...
            time               (azimuth) datetime64[ns] 3kB 2018-12-20T06:09:30.39167...
          * range              (range) float32 2kB 125.0 375.0 ... 1.471e+05 1.474e+05
        Data variables: (12/18)
            DBZH               (azimuth, range) float64 2MB ...
            DBZH_CLEAN         (azimuth, range) float64 2MB ...
            VRADDH             (azimuth, range) float64 2MB ...
            VRADH              (azimuth, range) float64 2MB ...
            WRADH              (azimuth, range) float64 2MB ...
            TH                 (azimuth, range) float64 2MB ...
            ...                 ...
            sweep_mode         <U20 80B ...
            sweep_number       int64 8B ...
            prt_mode           <U7 28B ...
            follow_mode        <U7 28B ...
            sweep_fixed_angle  float64 8B ...
            nyquist_velocity   float64 8B ...

xarray.DataTree

• /sweep_0(22)

  • Dimensions:
    • sweep: 1
    • azimuth: 360
    • range: 590
  • Coordinates: (4)
    • azimuth
      (azimuth)
      float32
      0.5 1.5 2.5 ... 357.5 358.5 359.5

      standard_name :

      ray_azimuth_angle

      long_name :

      azimuth_angle_from_true_north

      units :

      degrees

      axis :

      radial_azimuth_coordinate

      array([  0.5,   1.5,   2.5, ..., 357.5, 358.5, 359.5],shape=(360,), dtype=float32)

    • elevation
      (azimuth)
      float64
      ...

      standard_name :

      ray_elevation_angle

      long_name :

      elevation_angle_from_horizontal_plane

      units :

      degrees

      axis :

      radial_elevation_coordinate

      [360 values with dtype=float64]

    • time
      (azimuth)
      datetime64[ns]
      2018-12-20T06:09:30.391676928 .....

      standard_name :

      time

      array(['2018-12-20T06:09:30.391676928', '2018-12-20T06:09:30.430565888','2018-12-20T06:09:30.469454848', ..., '2018-12-20T06:09:30.275010048','2018-12-20T06:09:30.313899008', '2018-12-20T06:09:30.352787968'],shape=(360,), dtype='datetime64[ns]')

    • range
      (range)
      float32
      125.0 375.0 ... 1.471e+05 1.474e+05

      units :

      meters

      standard_name :

      projection_range_coordinate

      long_name :

      range_to_measurement_volume

      axis :

      radial_range_coordinate

      meters_between_gates :

      250.0

      spacing_is_constant :

      true

      meters_to_center_of_first_gate :

      125.0

      array([1.25000e+02, 3.75000e+02, 6.25000e+02, ..., 1.46875e+05, 1.47125e+05,1.47375e+05], shape=(590,), dtype=float32)

  • Data variables: (18)
    • DBZH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [212400 values with dtype=float64]

    • DBZH_CLEAN
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [212400 values with dtype=float64]

    • VRADDH
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [212400 values with dtype=float64]

    • VRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [212400 values with dtype=float64]

    • WRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radar_doppler_spectrum_width_h

      long_name :

      Doppler spectrum width H

      [212400 values with dtype=float64]

    • TH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_linear_equivalent_reflectivity_factor_h

      long_name :

      Linear total power H (uncorrected reflectivity)

      [212400 values with dtype=float64]

    • ZDR
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dB

      standard_name :

      radar_differential_reflectivity_hv

      long_name :

      Log differential reflectivity H/V

      [212400 values with dtype=float64]

    • RHOHV
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_correlation_coefficient_hv

      long_name :

      Correlation coefficient HV

      [212400 values with dtype=float64]

    • PHIDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees

      standard_name :

      radar_differential_phase_hv

      long_name :

      Differential phase HV

      [212400 values with dtype=float64]

    • KDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees per kilometer

      standard_name :

      radar_specific_differential_phase_hv

      long_name :

      Specific differential phase HV

      [212400 values with dtype=float64]

    • SNRH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      signal_noise_ratio_h

      long_name :

      Signal Noise Ratio H

      [212400 values with dtype=float64]

    • CLASS
      (azimuth, range)
      float32
      ...

      _Undetect :

      -2.0

      [212400 values with dtype=float32]

    • sweep_mode
      ()
      <U20
      ...

      [1 values with dtype=<U20]

    • sweep_number
      ()
      int64
      ...

      [1 values with dtype=int64]

    • prt_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • follow_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • sweep_fixed_angle
      ()
      float64
      ...

      [1 values with dtype=float64]

    • nyquist_velocity
      ()
      float64
      ...

      standard_name :

      nyquist_velocity

      units :

      m s-1

      [1 values with dtype=float64]

• Dimensions:
  • sweep: 1
• Coordinates: (3)
  • latitude
    ()
    float64
    ...

    long_name :

    latitude

    units :

    degrees_north

    positive :

    up

    standard_name :

    latitude

    [1 values with dtype=float64]

  • longitude
    ()
    float64
    ...

    long_name :

    longitude

    units :

    degrees_east

    standard_name :

    longitude

    [1 values with dtype=float64]

  • altitude
    ()
    float64
    ...

    long_name :

    altitude

    units :

    meters

    standard_name :

    altitude

    [1 values with dtype=float64]

• Data variables: (7)
  • volume_number
    ()
    int64
    0

    array(0)

  • platform_type
    ()
    <U5
    'fixed'

    array('fixed', dtype='<U5')

  • instrument_type
    ()
    <U5
    'radar'

    array('radar', dtype='<U5')

  • time_coverage_start
    ()
    <U20
    '2018-12-20T06:09:21Z'

    array('2018-12-20T06:09:21Z', dtype='<U20')

  • time_coverage_end
    ()
    <U20
    '2018-12-20T06:09:34Z'

    array('2018-12-20T06:09:34Z', dtype='<U20')

  • sweep_group_name
    (sweep)
    int64
    8

    array([8])

  • sweep_fixed_angle
    (sweep)
    float64
    7.4

    array([7.4])

• Attributes: (9)

  Conventions :

  ODIM_H5/V2_2

  instrument_name :

  None

  version :

  None

  title :

  None

  institution :

  None

  references :

  None

  source :

  None

  history :

  None

  comment :

  im/exported using xradar

dtree = xd.io.open_odim_datatree(filename, sweep=[0, 1, 8])
display(dtree)

<xarray.DataTree>
Group: /
│   Dimensions:              (sweep: 3)
│   Coordinates:
│       latitude             float64 8B ...
│       longitude            float64 8B ...
│       altitude             float64 8B ...
│   Dimensions without coordinates: sweep
│   Data variables:
│       volume_number        int64 8B 0
│       platform_type        <U5 20B 'fixed'
│       instrument_type      <U5 20B 'radar'
│       time_coverage_start  <U20 80B '2018-12-20T06:06:59Z'
│       time_coverage_end    <U20 80B '2018-12-20T06:09:48Z'
│       sweep_group_name     (sweep) int64 24B 1 2 9
│       sweep_fixed_angle    (sweep) float64 24B 0.9 1.3 10.0
│   Attributes:
│       Conventions:      ODIM_H5/V2_2
│       instrument_name:  None
│       version:          None
│       title:            None
│       institution:      None
│       references:       None
│       source:           None
│       history:          None
│       comment:          im/exported using xradar
├── Group: /sweep_0
│       Dimensions:            (azimuth: 360, range: 1200)
│       Coordinates:
│         * azimuth            (azimuth) float32 1kB 0.5 1.5 2.5 ... 357.5 358.5 359.5
│           elevation          (azimuth) float64 3kB ...
│           time               (azimuth) datetime64[ns] 3kB 2018-12-20T06:07:19.82358...
│         * range              (range) float32 5kB 125.0 375.0 ... 2.996e+05 2.999e+05
│       Data variables: (12/18)
│           DBZH               (azimuth, range) float64 3MB ...
│           DBZH_CLEAN         (azimuth, range) float64 3MB ...
│           VRADDH             (azimuth, range) float64 3MB ...
│           VRADH              (azimuth, range) float64 3MB ...
│           WRADH              (azimuth, range) float64 3MB ...
│           TH                 (azimuth, range) float64 3MB ...
│           ...                 ...
│           sweep_mode         <U20 80B ...
│           sweep_number       int64 8B ...
│           prt_mode           <U7 28B ...
│           follow_mode        <U7 28B ...
│           sweep_fixed_angle  float64 8B ...
│           nyquist_velocity   float64 8B ...
├── Group: /sweep_1
│       Dimensions:            (azimuth: 360, range: 1200)
│       Coordinates:
│         * azimuth            (azimuth) float32 1kB 0.5 1.5 2.5 ... 357.5 358.5 359.5
│           elevation          (azimuth) float64 3kB ...
│           time               (azimuth) datetime64[ns] 3kB 2018-12-20T06:07:42.68472...
│         * range              (range) float32 5kB 125.0 375.0 ... 2.996e+05 2.999e+05
│       Data variables: (12/18)
│           DBZH               (azimuth, range) float64 3MB ...
│           DBZH_CLEAN         (azimuth, range) float64 3MB ...
│           VRADDH             (azimuth, range) float64 3MB ...
│           VRADH              (azimuth, range) float64 3MB ...
│           WRADH              (azimuth, range) float64 3MB ...
│           TH                 (azimuth, range) float64 3MB ...
│           ...                 ...
│           sweep_mode         <U20 80B ...
│           sweep_number       int64 8B ...
│           prt_mode           <U7 28B ...
│           follow_mode        <U7 28B ...
│           sweep_fixed_angle  float64 8B ...
│           nyquist_velocity   float64 8B ...
└── Group: /sweep_2
        Dimensions:            (azimuth: 360, range: 480)
        Coordinates:
          * azimuth            (azimuth) float32 1kB 0.5 1.5 2.5 ... 357.5 358.5 359.5
            elevation          (azimuth) float64 3kB ...
            time               (azimuth) datetime64[ns] 3kB 2018-12-20T06:09:43.54582...
          * range              (range) float32 2kB 125.0 375.0 ... 1.196e+05 1.199e+05
        Data variables: (12/18)
            DBZH               (azimuth, range) float64 1MB ...
            DBZH_CLEAN         (azimuth, range) float64 1MB ...
            VRADDH             (azimuth, range) float64 1MB ...
            VRADH              (azimuth, range) float64 1MB ...
            WRADH              (azimuth, range) float64 1MB ...
            TH                 (azimuth, range) float64 1MB ...
            ...                 ...
            sweep_mode         <U20 80B ...
            sweep_number       int64 8B ...
            prt_mode           <U7 28B ...
            follow_mode        <U7 28B ...
            sweep_fixed_angle  float64 8B ...
            nyquist_velocity   float64 8B ...

xarray.DataTree

• /sweep_0(22)

  • Dimensions:
    • sweep: 3
    • azimuth: 360
    • range: 1200
  • Coordinates: (4)
    • azimuth
      (azimuth)
      float32
      0.5 1.5 2.5 ... 357.5 358.5 359.5

      standard_name :

      ray_azimuth_angle

      long_name :

      azimuth_angle_from_true_north

      units :

      degrees

      axis :

      radial_azimuth_coordinate

      array([  0.5,   1.5,   2.5, ..., 357.5, 358.5, 359.5],shape=(360,), dtype=float32)

    • elevation
      (azimuth)
      float64
      ...

      standard_name :

      ray_elevation_angle

      long_name :

      elevation_angle_from_horizontal_plane

      units :

      degrees

      axis :

      radial_elevation_coordinate

      [360 values with dtype=float64]

    • time
      (azimuth)
      datetime64[ns]
      2018-12-20T06:07:19.823580928 .....

      standard_name :

      time

      array(['2018-12-20T06:07:19.823580928', '2018-12-20T06:07:19.904136448','2018-12-20T06:07:19.984691968', ..., '2018-12-20T06:07:19.581914624','2018-12-20T06:07:19.662470144', '2018-12-20T06:07:19.743025664'],shape=(360,), dtype='datetime64[ns]')

    • range
      (range)
      float32
      125.0 375.0 ... 2.996e+05 2.999e+05

      units :

      meters

      standard_name :

      projection_range_coordinate

      long_name :

      range_to_measurement_volume

      axis :

      radial_range_coordinate

      meters_between_gates :

      250.0

      spacing_is_constant :

      true

      meters_to_center_of_first_gate :

      125.0

      array([1.25000e+02, 3.75000e+02, 6.25000e+02, ..., 2.99375e+05, 2.99625e+05,2.99875e+05], shape=(1200,), dtype=float32)

  • Data variables: (18)
    • DBZH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [432000 values with dtype=float64]

    • DBZH_CLEAN
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [432000 values with dtype=float64]

    • VRADDH
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [432000 values with dtype=float64]

    • VRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [432000 values with dtype=float64]

    • WRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radar_doppler_spectrum_width_h

      long_name :

      Doppler spectrum width H

      [432000 values with dtype=float64]

    • TH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_linear_equivalent_reflectivity_factor_h

      long_name :

      Linear total power H (uncorrected reflectivity)

      [432000 values with dtype=float64]

    • ZDR
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dB

      standard_name :

      radar_differential_reflectivity_hv

      long_name :

      Log differential reflectivity H/V

      [432000 values with dtype=float64]

    • RHOHV
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_correlation_coefficient_hv

      long_name :

      Correlation coefficient HV

      [432000 values with dtype=float64]

    • PHIDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees

      standard_name :

      radar_differential_phase_hv

      long_name :

      Differential phase HV

      [432000 values with dtype=float64]

    • KDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees per kilometer

      standard_name :

      radar_specific_differential_phase_hv

      long_name :

      Specific differential phase HV

      [432000 values with dtype=float64]

    • SNRH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      signal_noise_ratio_h

      long_name :

      Signal Noise Ratio H

      [432000 values with dtype=float64]

    • CLASS
      (azimuth, range)
      float32
      ...

      _Undetect :

      -2.0

      [432000 values with dtype=float32]

    • sweep_mode
      ()
      <U20
      ...

      [1 values with dtype=<U20]

    • sweep_number
      ()
      int64
      ...

      [1 values with dtype=int64]

    • prt_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • follow_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • sweep_fixed_angle
      ()
      float64
      ...

      [1 values with dtype=float64]

    • nyquist_velocity
      ()
      float64
      ...

      standard_name :

      nyquist_velocity

      units :

      m s-1

      [1 values with dtype=float64]

  /sweep_1(22)

  • Dimensions:
    • sweep: 3
    • azimuth: 360
    • range: 1200
  • Coordinates: (4)
    • azimuth
      (azimuth)
      float32
      0.5 1.5 2.5 ... 357.5 358.5 359.5

      standard_name :

      ray_azimuth_angle

      long_name :

      azimuth_angle_from_true_north

      units :

      degrees

      axis :

      radial_azimuth_coordinate

      array([  0.5,   1.5,   2.5, ..., 357.5, 358.5, 359.5],shape=(360,), dtype=float32)

    • elevation
      (azimuth)
      float64
      ...

      standard_name :

      ray_elevation_angle

      long_name :

      elevation_angle_from_horizontal_plane

      units :

      degrees

      axis :

      radial_elevation_coordinate

      [360 values with dtype=float64]

    • time
      (azimuth)
      datetime64[ns]
      2018-12-20T06:07:42.684720384 .....

      standard_name :

      time

      array(['2018-12-20T06:07:42.684720384', '2018-12-20T06:07:42.737498112','2018-12-20T06:07:42.790275840', ..., '2018-12-20T06:07:42.526386944','2018-12-20T06:07:42.579164672', '2018-12-20T06:07:42.631942400'],shape=(360,), dtype='datetime64[ns]')

    • range
      (range)
      float32
      125.0 375.0 ... 2.996e+05 2.999e+05

      units :

      meters

      standard_name :

      projection_range_coordinate

      long_name :

      range_to_measurement_volume

      axis :

      radial_range_coordinate

      meters_between_gates :

      250.0

      spacing_is_constant :

      true

      meters_to_center_of_first_gate :

      125.0

      array([1.25000e+02, 3.75000e+02, 6.25000e+02, ..., 2.99375e+05, 2.99625e+05,2.99875e+05], shape=(1200,), dtype=float32)

  • Data variables: (18)
    • DBZH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [432000 values with dtype=float64]

    • DBZH_CLEAN
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [432000 values with dtype=float64]

    • VRADDH
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [432000 values with dtype=float64]

    • VRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [432000 values with dtype=float64]

    • WRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radar_doppler_spectrum_width_h

      long_name :

      Doppler spectrum width H

      [432000 values with dtype=float64]

    • TH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_linear_equivalent_reflectivity_factor_h

      long_name :

      Linear total power H (uncorrected reflectivity)

      [432000 values with dtype=float64]

    • ZDR
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dB

      standard_name :

      radar_differential_reflectivity_hv

      long_name :

      Log differential reflectivity H/V

      [432000 values with dtype=float64]

    • RHOHV
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_correlation_coefficient_hv

      long_name :

      Correlation coefficient HV

      [432000 values with dtype=float64]

    • PHIDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees

      standard_name :

      radar_differential_phase_hv

      long_name :

      Differential phase HV

      [432000 values with dtype=float64]

    • KDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees per kilometer

      standard_name :

      radar_specific_differential_phase_hv

      long_name :

      Specific differential phase HV

      [432000 values with dtype=float64]

    • SNRH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      signal_noise_ratio_h

      long_name :

      Signal Noise Ratio H

      [432000 values with dtype=float64]

    • CLASS
      (azimuth, range)
      float32
      ...

      _Undetect :

      -2.0

      [432000 values with dtype=float32]

    • sweep_mode
      ()
      <U20
      ...

      [1 values with dtype=<U20]

    • sweep_number
      ()
      int64
      ...

      [1 values with dtype=int64]

    • prt_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • follow_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • sweep_fixed_angle
      ()
      float64
      ...

      [1 values with dtype=float64]

    • nyquist_velocity
      ()
      float64
      ...

      standard_name :

      nyquist_velocity

      units :

      m s-1

      [1 values with dtype=float64]

  /sweep_2(22)

  • Dimensions:
    • sweep: 3
    • azimuth: 360
    • range: 480
  • Coordinates: (4)
    • azimuth
      (azimuth)
      float32
      0.5 1.5 2.5 ... 357.5 358.5 359.5

      standard_name :

      ray_azimuth_angle

      long_name :

      azimuth_angle_from_true_north

      units :

      degrees

      axis :

      radial_azimuth_coordinate

      array([  0.5,   1.5,   2.5, ..., 357.5, 358.5, 359.5],shape=(360,), dtype=float32)

    • elevation
      (azimuth)
      float64
      ...

      standard_name :

      ray_elevation_angle

      long_name :

      elevation_angle_from_horizontal_plane

      units :

      degrees

      axis :

      radial_elevation_coordinate

      [360 values with dtype=float64]

    • time
      (azimuth)
      datetime64[ns]
      2018-12-20T06:09:43.545820928 .....

      standard_name :

      time

      array(['2018-12-20T06:09:43.545820928', '2018-12-20T06:09:43.576376320','2018-12-20T06:09:43.606931968', ..., '2018-12-20T06:09:43.454154496','2018-12-20T06:09:43.484709888', '2018-12-20T06:09:43.515265536'],shape=(360,), dtype='datetime64[ns]')

    • range
      (range)
      float32
      125.0 375.0 ... 1.196e+05 1.199e+05

      units :

      meters

      standard_name :

      projection_range_coordinate

      long_name :

      range_to_measurement_volume

      axis :

      radial_range_coordinate

      meters_between_gates :

      250.0

      spacing_is_constant :

      true

      meters_to_center_of_first_gate :

      125.0

      array([   125.,    375.,    625., ..., 119375., 119625., 119875.],shape=(480,), dtype=float32)

  • Data variables: (18)
    • DBZH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [172800 values with dtype=float64]

    • DBZH_CLEAN
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [172800 values with dtype=float64]

    • VRADDH
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [172800 values with dtype=float64]

    • VRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [172800 values with dtype=float64]

    • WRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radar_doppler_spectrum_width_h

      long_name :

      Doppler spectrum width H

      [172800 values with dtype=float64]

    • TH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_linear_equivalent_reflectivity_factor_h

      long_name :

      Linear total power H (uncorrected reflectivity)

      [172800 values with dtype=float64]

    • ZDR
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dB

      standard_name :

      radar_differential_reflectivity_hv

      long_name :

      Log differential reflectivity H/V

      [172800 values with dtype=float64]

    • RHOHV
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_correlation_coefficient_hv

      long_name :

      Correlation coefficient HV

      [172800 values with dtype=float64]

    • PHIDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees

      standard_name :

      radar_differential_phase_hv

      long_name :

      Differential phase HV

      [172800 values with dtype=float64]

    • KDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees per kilometer

      standard_name :

      radar_specific_differential_phase_hv

      long_name :

      Specific differential phase HV

      [172800 values with dtype=float64]

    • SNRH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      signal_noise_ratio_h

      long_name :

      Signal Noise Ratio H

      [172800 values with dtype=float64]

    • CLASS
      (azimuth, range)
      float32
      ...

      _Undetect :

      -2.0

      [172800 values with dtype=float32]

    • sweep_mode
      ()
      <U20
      ...

      [1 values with dtype=<U20]

    • sweep_number
      ()
      int64
      ...

      [1 values with dtype=int64]

    • prt_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • follow_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • sweep_fixed_angle
      ()
      float64
      ...

      [1 values with dtype=float64]

    • nyquist_velocity
      ()
      float64
      ...

      standard_name :

      nyquist_velocity

      units :

      m s-1

      [1 values with dtype=float64]

• Dimensions:
  • sweep: 3
• Coordinates: (3)
  • latitude
    ()
    float64
    ...

    long_name :

    latitude

    units :

    degrees_north

    positive :

    up

    standard_name :

    latitude

    [1 values with dtype=float64]

  • longitude
    ()
    float64
    ...

    long_name :

    longitude

    units :

    degrees_east

    standard_name :

    longitude

    [1 values with dtype=float64]

  • altitude
    ()
    float64
    ...

    long_name :

    altitude

    units :

    meters

    standard_name :

    altitude

    [1 values with dtype=float64]

• Data variables: (7)
  • volume_number
    ()
    int64
    0

    array(0)

  • platform_type
    ()
    <U5
    'fixed'

    array('fixed', dtype='<U5')

  • instrument_type
    ()
    <U5
    'radar'

    array('radar', dtype='<U5')

  • time_coverage_start
    ()
    <U20
    '2018-12-20T06:06:59Z'

    array('2018-12-20T06:06:59Z', dtype='<U20')

  • time_coverage_end
    ()
    <U20
    '2018-12-20T06:09:48Z'

    array('2018-12-20T06:09:48Z', dtype='<U20')

  • sweep_group_name
    (sweep)
    int64
    1 2 9

    array([1, 2, 9])

  • sweep_fixed_angle
    (sweep)
    float64
    0.9 1.3 10.0

    array([ 0.9,  1.3, 10. ])

• Attributes: (9)

  Conventions :

  ODIM_H5/V2_2

  instrument_name :

  None

  version :

  None

  title :

  None

  institution :

  None

  references :

  None

  source :

  None

  history :

  None

  comment :

  im/exported using xradar

dtree = xd.io.open_odim_datatree(filename, sweep=["sweep_0", "sweep_1", "sweep_8"])
display(dtree)

<xarray.DataTree>
Group: /
│   Dimensions:              (sweep: 3)
│   Coordinates:
│       latitude             float64 8B ...
│       longitude            float64 8B ...
│       altitude             float64 8B ...
│   Dimensions without coordinates: sweep
│   Data variables:
│       volume_number        int64 8B 0
│       platform_type        <U5 20B 'fixed'
│       instrument_type      <U5 20B 'radar'
│       time_coverage_start  <U20 80B '2018-12-20T06:06:28Z'
│       time_coverage_end    <U20 80B '2018-12-20T06:09:34Z'
│       sweep_group_name     (sweep) int64 24B 0 1 8
│       sweep_fixed_angle    (sweep) float64 24B 0.5 0.9 7.4
│   Attributes:
│       Conventions:      ODIM_H5/V2_2
│       instrument_name:  None
│       version:          None
│       title:            None
│       institution:      None
│       references:       None
│       source:           None
│       history:          None
│       comment:          im/exported using xradar
├── Group: /sweep_0
│       Dimensions:            (azimuth: 360, range: 1200)
│       Coordinates:
│         * azimuth            (azimuth) float32 1kB 0.5 1.5 2.5 ... 357.5 358.5 359.5
│           elevation          (azimuth) float64 3kB ...
│           time               (azimuth) datetime64[ns] 3kB 2018-12-20T06:06:50.11246...
│         * range              (range) float32 5kB 125.0 375.0 ... 2.996e+05 2.999e+05
│       Data variables: (12/18)
│           DBZH               (azimuth, range) float64 3MB ...
│           DBZH_CLEAN         (azimuth, range) float64 3MB ...
│           VRADDH             (azimuth, range) float64 3MB ...
│           VRADH              (azimuth, range) float64 3MB ...
│           WRADH              (azimuth, range) float64 3MB ...
│           TH                 (azimuth, range) float64 3MB ...
│           ...                 ...
│           sweep_mode         <U20 80B ...
│           sweep_number       int64 8B ...
│           prt_mode           <U7 28B ...
│           follow_mode        <U7 28B ...
│           sweep_fixed_angle  float64 8B ...
│           nyquist_velocity   float64 8B ...
├── Group: /sweep_1
│       Dimensions:            (azimuth: 360, range: 1200)
│       Coordinates:
│         * azimuth            (azimuth) float32 1kB 0.5 1.5 2.5 ... 357.5 358.5 359.5
│           elevation          (azimuth) float64 3kB ...
│           time               (azimuth) datetime64[ns] 3kB 2018-12-20T06:07:19.82358...
│         * range              (range) float32 5kB 125.0 375.0 ... 2.996e+05 2.999e+05
│       Data variables: (12/18)
│           DBZH               (azimuth, range) float64 3MB ...
│           DBZH_CLEAN         (azimuth, range) float64 3MB ...
│           VRADDH             (azimuth, range) float64 3MB ...
│           VRADH              (azimuth, range) float64 3MB ...
│           WRADH              (azimuth, range) float64 3MB ...
│           TH                 (azimuth, range) float64 3MB ...
│           ...                 ...
│           sweep_mode         <U20 80B ...
│           sweep_number       int64 8B ...
│           prt_mode           <U7 28B ...
│           follow_mode        <U7 28B ...
│           sweep_fixed_angle  float64 8B ...
│           nyquist_velocity   float64 8B ...
└── Group: /sweep_2
        Dimensions:            (azimuth: 360, range: 590)
        Coordinates:
          * azimuth            (azimuth) float32 1kB 0.5 1.5 2.5 ... 357.5 358.5 359.5
            elevation          (azimuth) float64 3kB ...
            time               (azimuth) datetime64[ns] 3kB 2018-12-20T06:09:30.39167...
          * range              (range) float32 2kB 125.0 375.0 ... 1.471e+05 1.474e+05
        Data variables: (12/18)
            DBZH               (azimuth, range) float64 2MB ...
            DBZH_CLEAN         (azimuth, range) float64 2MB ...
            VRADDH             (azimuth, range) float64 2MB ...
            VRADH              (azimuth, range) float64 2MB ...
            WRADH              (azimuth, range) float64 2MB ...
            TH                 (azimuth, range) float64 2MB ...
            ...                 ...
            sweep_mode         <U20 80B ...
            sweep_number       int64 8B ...
            prt_mode           <U7 28B ...
            follow_mode        <U7 28B ...
            sweep_fixed_angle  float64 8B ...
            nyquist_velocity   float64 8B ...

xarray.DataTree

• /sweep_0(22)

  • Dimensions:
    • sweep: 3
    • azimuth: 360
    • range: 1200
  • Coordinates: (4)
    • azimuth
      (azimuth)
      float32
      0.5 1.5 2.5 ... 357.5 358.5 359.5

      standard_name :

      ray_azimuth_angle

      long_name :

      azimuth_angle_from_true_north

      units :

      degrees

      axis :

      radial_azimuth_coordinate

      array([  0.5,   1.5,   2.5, ..., 357.5, 358.5, 359.5],shape=(360,), dtype=float32)

    • elevation
      (azimuth)
      float64
      ...

      standard_name :

      ray_elevation_angle

      long_name :

      elevation_angle_from_horizontal_plane

      units :

      degrees

      axis :

      radial_elevation_coordinate

      [360 values with dtype=float64]

    • time
      (azimuth)
      datetime64[ns]
      2018-12-20T06:06:50.112467968 .....

      standard_name :

      time

      array(['2018-12-20T06:06:50.112467968', '2018-12-20T06:06:50.193023488','2018-12-20T06:06:50.273579008', ..., '2018-12-20T06:06:49.870801664','2018-12-20T06:06:49.951357184', '2018-12-20T06:06:50.031912448'],shape=(360,), dtype='datetime64[ns]')

    • range
      (range)
      float32
      125.0 375.0 ... 2.996e+05 2.999e+05

      units :

      meters

      standard_name :

      projection_range_coordinate

      long_name :

      range_to_measurement_volume

      axis :

      radial_range_coordinate

      meters_between_gates :

      250.0

      spacing_is_constant :

      true

      meters_to_center_of_first_gate :

      125.0

      array([1.25000e+02, 3.75000e+02, 6.25000e+02, ..., 2.99375e+05, 2.99625e+05,2.99875e+05], shape=(1200,), dtype=float32)

  • Data variables: (18)
    • DBZH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [432000 values with dtype=float64]

    • DBZH_CLEAN
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [432000 values with dtype=float64]

    • VRADDH
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [432000 values with dtype=float64]

    • VRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [432000 values with dtype=float64]

    • WRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radar_doppler_spectrum_width_h

      long_name :

      Doppler spectrum width H

      [432000 values with dtype=float64]

    • TH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_linear_equivalent_reflectivity_factor_h

      long_name :

      Linear total power H (uncorrected reflectivity)

      [432000 values with dtype=float64]

    • ZDR
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dB

      standard_name :

      radar_differential_reflectivity_hv

      long_name :

      Log differential reflectivity H/V

      [432000 values with dtype=float64]

    • RHOHV
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_correlation_coefficient_hv

      long_name :

      Correlation coefficient HV

      [432000 values with dtype=float64]

    • PHIDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees

      standard_name :

      radar_differential_phase_hv

      long_name :

      Differential phase HV

      [432000 values with dtype=float64]

    • KDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees per kilometer

      standard_name :

      radar_specific_differential_phase_hv

      long_name :

      Specific differential phase HV

      [432000 values with dtype=float64]

    • SNRH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      signal_noise_ratio_h

      long_name :

      Signal Noise Ratio H

      [432000 values with dtype=float64]

    • CLASS
      (azimuth, range)
      float32
      ...

      _Undetect :

      -2.0

      [432000 values with dtype=float32]

    • sweep_mode
      ()
      <U20
      ...

      [1 values with dtype=<U20]

    • sweep_number
      ()
      int64
      ...

      [1 values with dtype=int64]

    • prt_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • follow_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • sweep_fixed_angle
      ()
      float64
      ...

      [1 values with dtype=float64]

    • nyquist_velocity
      ()
      float64
      ...

      standard_name :

      nyquist_velocity

      units :

      m s-1

      [1 values with dtype=float64]

  /sweep_1(22)

  • Dimensions:
    • sweep: 3
    • azimuth: 360
    • range: 1200
  • Coordinates: (4)
    • azimuth
      (azimuth)
      float32
      0.5 1.5 2.5 ... 357.5 358.5 359.5

      standard_name :

      ray_azimuth_angle

      long_name :

      azimuth_angle_from_true_north

      units :

      degrees

      axis :

      radial_azimuth_coordinate

      array([  0.5,   1.5,   2.5, ..., 357.5, 358.5, 359.5],shape=(360,), dtype=float32)

    • elevation
      (azimuth)
      float64
      ...

      standard_name :

      ray_elevation_angle

      long_name :

      elevation_angle_from_horizontal_plane

      units :

      degrees

      axis :

      radial_elevation_coordinate

      [360 values with dtype=float64]

    • time
      (azimuth)
      datetime64[ns]
      2018-12-20T06:07:19.823580928 .....

      standard_name :

      time

      array(['2018-12-20T06:07:19.823580928', '2018-12-20T06:07:19.904136448','2018-12-20T06:07:19.984691968', ..., '2018-12-20T06:07:19.581914624','2018-12-20T06:07:19.662470144', '2018-12-20T06:07:19.743025664'],shape=(360,), dtype='datetime64[ns]')

    • range
      (range)
      float32
      125.0 375.0 ... 2.996e+05 2.999e+05

      units :

      meters

      standard_name :

      projection_range_coordinate

      long_name :

      range_to_measurement_volume

      axis :

      radial_range_coordinate

      meters_between_gates :

      250.0

      spacing_is_constant :

      true

      meters_to_center_of_first_gate :

      125.0

      array([1.25000e+02, 3.75000e+02, 6.25000e+02, ..., 2.99375e+05, 2.99625e+05,2.99875e+05], shape=(1200,), dtype=float32)

  • Data variables: (18)
    • DBZH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [432000 values with dtype=float64]

    • DBZH_CLEAN
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [432000 values with dtype=float64]

    • VRADDH
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [432000 values with dtype=float64]

    • VRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [432000 values with dtype=float64]

    • WRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radar_doppler_spectrum_width_h

      long_name :

      Doppler spectrum width H

      [432000 values with dtype=float64]

    • TH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_linear_equivalent_reflectivity_factor_h

      long_name :

      Linear total power H (uncorrected reflectivity)

      [432000 values with dtype=float64]

    • ZDR
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dB

      standard_name :

      radar_differential_reflectivity_hv

      long_name :

      Log differential reflectivity H/V

      [432000 values with dtype=float64]

    • RHOHV
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_correlation_coefficient_hv

      long_name :

      Correlation coefficient HV

      [432000 values with dtype=float64]

    • PHIDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees

      standard_name :

      radar_differential_phase_hv

      long_name :

      Differential phase HV

      [432000 values with dtype=float64]

    • KDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees per kilometer

      standard_name :

      radar_specific_differential_phase_hv

      long_name :

      Specific differential phase HV

      [432000 values with dtype=float64]

    • SNRH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      signal_noise_ratio_h

      long_name :

      Signal Noise Ratio H

      [432000 values with dtype=float64]

    • CLASS
      (azimuth, range)
      float32
      ...

      _Undetect :

      -2.0

      [432000 values with dtype=float32]

    • sweep_mode
      ()
      <U20
      ...

      [1 values with dtype=<U20]

    • sweep_number
      ()
      int64
      ...

      [1 values with dtype=int64]

    • prt_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • follow_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • sweep_fixed_angle
      ()
      float64
      ...

      [1 values with dtype=float64]

    • nyquist_velocity
      ()
      float64
      ...

      standard_name :

      nyquist_velocity

      units :

      m s-1

      [1 values with dtype=float64]

  /sweep_2(22)

  • Dimensions:
    • sweep: 3
    • azimuth: 360
    • range: 590
  • Coordinates: (4)
    • azimuth
      (azimuth)
      float32
      0.5 1.5 2.5 ... 357.5 358.5 359.5

      standard_name :

      ray_azimuth_angle

      long_name :

      azimuth_angle_from_true_north

      units :

      degrees

      axis :

      radial_azimuth_coordinate

      array([  0.5,   1.5,   2.5, ..., 357.5, 358.5, 359.5],shape=(360,), dtype=float32)

    • elevation
      (azimuth)
      float64
      ...

      standard_name :

      ray_elevation_angle

      long_name :

      elevation_angle_from_horizontal_plane

      units :

      degrees

      axis :

      radial_elevation_coordinate

      [360 values with dtype=float64]

    • time
      (azimuth)
      datetime64[ns]
      2018-12-20T06:09:30.391676928 .....

      standard_name :

      time

      array(['2018-12-20T06:09:30.391676928', '2018-12-20T06:09:30.430565888','2018-12-20T06:09:30.469454848', ..., '2018-12-20T06:09:30.275010048','2018-12-20T06:09:30.313899008', '2018-12-20T06:09:30.352787968'],shape=(360,), dtype='datetime64[ns]')

    • range
      (range)
      float32
      125.0 375.0 ... 1.471e+05 1.474e+05

      units :

      meters

      standard_name :

      projection_range_coordinate

      long_name :

      range_to_measurement_volume

      axis :

      radial_range_coordinate

      meters_between_gates :

      250.0

      spacing_is_constant :

      true

      meters_to_center_of_first_gate :

      125.0

      array([1.25000e+02, 3.75000e+02, 6.25000e+02, ..., 1.46875e+05, 1.47125e+05,1.47375e+05], shape=(590,), dtype=float32)

  • Data variables: (18)
    • DBZH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [212400 values with dtype=float64]

    • DBZH_CLEAN
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      dBZ

      standard_name :

      radar_equivalent_reflectivity_factor_h

      long_name :

      Equivalent reflectivity factor H

      [212400 values with dtype=float64]

    • VRADDH
      (azimuth, range)
      float64
      ...

      _Undetect :

      1.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [212400 values with dtype=float64]

    • VRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radial_velocity_of_scatterers_away_from_instrument_h

      long_name :

      Radial velocity of scatterers away from instrument H

      [212400 values with dtype=float64]

    • WRADH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      meters per seconds

      standard_name :

      radar_doppler_spectrum_width_h

      long_name :

      Doppler spectrum width H

      [212400 values with dtype=float64]

    • TH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_linear_equivalent_reflectivity_factor_h

      long_name :

      Linear total power H (uncorrected reflectivity)

      [212400 values with dtype=float64]

    • ZDR
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      dB

      standard_name :

      radar_differential_reflectivity_hv

      long_name :

      Log differential reflectivity H/V

      [212400 values with dtype=float64]

    • RHOHV
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      radar_correlation_coefficient_hv

      long_name :

      Correlation coefficient HV

      [212400 values with dtype=float64]

    • PHIDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees

      standard_name :

      radar_differential_phase_hv

      long_name :

      Differential phase HV

      [212400 values with dtype=float64]

    • KDP
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      degrees per kilometer

      standard_name :

      radar_specific_differential_phase_hv

      long_name :

      Specific differential phase HV

      [212400 values with dtype=float64]

    • SNRH
      (azimuth, range)
      float64
      ...

      _Undetect :

      0.0

      units :

      unitless

      standard_name :

      signal_noise_ratio_h

      long_name :

      Signal Noise Ratio H

      [212400 values with dtype=float64]

    • CLASS
      (azimuth, range)
      float32
      ...

      _Undetect :

      -2.0

      [212400 values with dtype=float32]

    • sweep_mode
      ()
      <U20
      ...

      [1 values with dtype=<U20]

    • sweep_number
      ()
      int64
      ...

      [1 values with dtype=int64]

    • prt_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • follow_mode
      ()
      <U7
      ...

      [1 values with dtype=<U7]

    • sweep_fixed_angle
      ()
      float64
      ...

      [1 values with dtype=float64]

    • nyquist_velocity
      ()
      float64
      ...

      standard_name :

      nyquist_velocity

      units :

      m s-1

      [1 values with dtype=float64]

• Dimensions:
  • sweep: 3
• Coordinates: (3)
  • latitude
    ()
    float64
    ...

    long_name :

    latitude

    units :

    degrees_north

    positive :

    up

    standard_name :

    latitude

    [1 values with dtype=float64]

  • longitude
    ()
    float64
    ...

    long_name :

    longitude

    units :

    degrees_east

    standard_name :

    longitude

    [1 values with dtype=float64]

  • altitude
    ()
    float64
    ...

    long_name :

    altitude

    units :

    meters

    standard_name :

    altitude

    [1 values with dtype=float64]

• Data variables: (7)
  • volume_number
    ()
    int64
    0

    array(0)

  • platform_type
    ()
    <U5
    'fixed'

    array('fixed', dtype='<U5')

  • instrument_type
    ()
    <U5
    'radar'

    array('radar', dtype='<U5')

  • time_coverage_start
    ()
    <U20
    '2018-12-20T06:06:28Z'

    array('2018-12-20T06:06:28Z', dtype='<U20')

  • time_coverage_end
    ()
    <U20
    '2018-12-20T06:09:34Z'

    array('2018-12-20T06:09:34Z', dtype='<U20')

  • sweep_group_name
    (sweep)
    int64
    0 1 8

    array([0, 1, 8])

  • sweep_fixed_angle
    (sweep)
    float64
    0.5 0.9 7.4

    array([0.5, 0.9, 7.4])

• Attributes: (9)

  Conventions :

  ODIM_H5/V2_2

  instrument_name :

  None

  version :

  None

  title :

  None

  institution :

  None

  references :

  None

  source :

  None

  history :

  None

  comment :

  im/exported using xradar