40 lines
No EOL
1.3 KiB
Python
40 lines
No EOL
1.3 KiB
Python
##
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# This software was developed and / or modified by Raytheon Company,
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# pursuant to Contract DG133W-05-CQ-1067 with the US Government.
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#
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# U.S. EXPORT CONTROLLED TECHNICAL DATA
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# This software product contains export-restricted data whose
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# export/transfer/disclosure is restricted by U.S. law. Dissemination
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# to non-U.S. persons whether in the United States or abroad requires
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# an export license or other authorization.
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#
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# Contractor Name: Raytheon Company
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# Contractor Address: 6825 Pine Street, Suite 340
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# Mail Stop B8
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# Omaha, NE 68106
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# 402.291.0100
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#
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# See the AWIPS II Master Rights File ("Master Rights File.pdf") for
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# further licensing information.
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##
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# ----------------------------------------------------------------
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# Calculate V component from wind speed and direction
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#
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# ----------------------------------------------------------------
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import numpy
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from numpy import power
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from numpy import cos
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const1 = 0.0174533
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def execute(wSp, WD):
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return calculate(wSp, WD)
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def calculate(wSp, wD):
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wD = numpy.where(wD < 0, -9999.0, numpy.where(wD > 360, -9999.0,wD))
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wSp = numpy.where(wSp < 0, -9999.0, numpy.where(wSp > 250, -9999.0,wSp))
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theta = wD * 0.0174533
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V = (-1 * wSp) * numpy.cos(theta)
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return V |