e2ecdcfe33
Former-commit-id:a02aeb236c[formerly9f19e3f712] [formerlya02aeb236c[formerly9f19e3f712] [formerly06a8b51d6d[formerly 64fa9254b946eae7e61bbc3f513b7c3696c4f54f]]] Former-commit-id:06a8b51d6dFormer-commit-id:8e80217e59[formerly3360eb6c5f] Former-commit-id:377dcd10b9
37 lines
1.3 KiB
Python
37 lines
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 virtual temperature from the pressure,
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# temperature, and relative humidity.
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# ----------------------------------------------------------------
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from numpy import clip
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from numpy import exp
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def execute(P,T,RH):
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"Calculate virtual temperature from temperature(K), relative \
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humidity(0 to 100) and Pressure."
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rhqc=clip(RH,1.0,100.0)
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k = T
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eee = exp(21.0827887-0.0091379024*k-6106.396/k)
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tv = T * P / (P - RH * eee)
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return tv
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