57 lines
2.2 KiB
Python
57 lines
2.2 KiB
Python
from awips.dataaccess import DataAccessLayer
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from xmet.sounding import Sounding, SoundingSample
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from xmet.units import celsius
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class BUFRSounding():
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EDEX_HOST = 'edex-cloud.unidata.ucar.edu'
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BUFR_TYPE = 'bufrua'
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BUFR_PARAMS_MAN = set(['prMan', 'htMan', 'wdMan', 'wsMan'])
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BUFR_PARAMS_SIGT = set(['prSigT', 'htSigT', 'tpSigT', 'tdSigT'])
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BUFR_PARAMS_SIGW = set(['prSigW', 'htSigW', 'wdSigW', 'wsSigW'])
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@staticmethod
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def init():
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DataAccessLayer.changeEDEXHost(BUFRSounding.EDEX_HOST)
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@staticmethod
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def latest(station: str) -> Sounding:
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request = DataAccessLayer.newDataRequest()
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request.setDatatype(BUFRSounding.BUFR_TYPE)
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request.setParameters('staElev', 'staName')
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request.getParameters().extend(BUFRSounding.BUFR_PARAMS_MAN)
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request.getParameters().extend(BUFRSounding.BUFR_PARAMS_SIGT)
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request.getParameters().extend(BUFRSounding.BUFR_PARAMS_SIGW)
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request.setLocationName(station)
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datatimes = DataAccessLayer.getAvailableTimes(request)
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response = DataAccessLayer.getGeometryData(request,
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times=datatimes[-1].validPeriod)
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sounding = Sounding()
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for item in response:
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params = item.getParameters()
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if set(params) & BUFRSounding.BUFR_PARAMS_MAN:
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sample = sounding.sample(item.getNumber('prMan') / 100.0)
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sample.height = item.getNumber('htMan')
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sample.wind_speed = item.getNumber('wsMan')
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sample.wind_dir = item.getNumber('wdMan')
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if set(params) & BUFRSounding.BUFR_PARAMS_SIGT:
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sample = sounding.sample(item.getNumber('prSigT') / 100.0)
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sample.temp = celsius(item.getNumber('tpSigT'))
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sample.dewpoint = celsius(item.getNumber('tdSigT'))
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if set(params) & BUFRSounding.BUFR_PARAMS_SIGW:
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sample = sounding.sample(item.getNumber('prSigW') / 100.0)
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sample.height = item.getNumber('htSigW')
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sample.wind_speed = item.getNumber('wsSigW')
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sample.wind_dir = item.getNumber('wdSigW')
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return sounding
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