Universal Format (UF)#

import cmweather  # noqa
import xarray as xr
from open_radar_data import DATASETS

import xradar as xd

Download#

Fetching Universal Format radar data file from open-radar-data repository.

import atexit
from pathlib import Path
from tempfile import TemporaryDirectory

tmpdir_obj = TemporaryDirectory()
atexit.register(tmpdir_obj.cleanup)  # remove even if you forget
tmpdir = Path(tmpdir_obj.name)


def get_temp_file(fname):
    import gzip
    import shutil

    fnamei = Path(DATASETS.fetch(fname))
    fnameo = tmpdir / fnamei.stem
    with gzip.open(fnamei) as fin:
        with open(fnameo, "wb") as fout:
            shutil.copyfileobj(fin, fout)
            fout.flush()
            fout.close()
    return fnameo


fname = get_temp_file("20110427_164233_rvp8-rel_v001_SUR.uf.gz")

clean up#

import time

for node in dtree.values():
    if hasattr(node, "close"):
        node.close()
for file in tmpdir.iterdir():
    if file.is_file():
        for _ in range(5):
            try:
                file.unlink()
                break
            except PermissionError:
                time.sleep(0.5)