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Adds an example plotting radar data and surface obs on a basemap. #47

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mwilson14
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Also adds a dependency on arm_pyart.

# Use RadarServer and Pyart to pull in a radar object for the scan we want.

query = rs.query()
dt = datetime(2017, 6, 12, 22, 0) # Our specified time
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By using the fixed time, this will stop being able to pull surface data in a month or so. How about datetime.utcnow().

# domains for data within the past two weeks or so.

rs = RadarServer('http://thredds-aws.unidata.ucar.edu/thredds/radarServer/nexrad/level2/S3/')
# rs = RadarServer('http://thredds.ucar.edu/thredds/radarServer/nexrad/level2/IDD/')
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Let's use realtime data and just pull from thredds.ucar.edu (until I can get a more universally accessible service on AWS)

metar_dataset = catalog.datasets['Feature Collection']
ncss_url = metar_dataset.access_urls['NetcdfSubset']
# Import ncss client
ncss = NCSS(ncss_url)
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Can now do:

ncss = metar_dataset.subset()

@jrleeman
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This will be held up until we have surface data available again.

@jrleeman jrleeman added the On Hold Waiting on something else in the stack label Dec 4, 2018
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