a3f44810f9
* move derived parameter definitions to base localization level * remove java 7 exception constructor from inventory plugin * move python function adapter to derivparam.python plugin Former-commit-id:e222fc706e[formerly0e88702cea] [formerly16b4c9253e] [formerlye222fc706e[formerly0e88702cea] [formerly16b4c9253e] [formerly41b154802c[formerly16b4c9253e[formerly c54110914a3a64a2ea7c22093327c9e0d84689b2]]]] Former-commit-id:41b154802cFormer-commit-id:4c979bd398[formerly2ace82f815] [formerly bbcf6ba629d8e4a1649178671bcae72d11e64f57 [formerlyf6bf1f43bd]] Former-commit-id: 10f940c3c864c69ac5c7993834bc5f3162aceaca [formerlya89211f60a] Former-commit-id:abf4bd55a1
85 lines
3 KiB
Python
85 lines
3 KiB
Python
##
|
|
# This software was developed and / or modified by Raytheon Company,
|
|
# pursuant to Contract DG133W-05-CQ-1067 with the US Government.
|
|
#
|
|
# U.S. EXPORT CONTROLLED TECHNICAL DATA
|
|
# This software product contains export-restricted data whose
|
|
# export/transfer/disclosure is restricted by U.S. law. Dissemination
|
|
# to non-U.S. persons whether in the United States or abroad requires
|
|
# an export license or other authorization.
|
|
#
|
|
# Contractor Name: Raytheon Company
|
|
# Contractor Address: 6825 Pine Street, Suite 340
|
|
# Mail Stop B8
|
|
# Omaha, NE 68106
|
|
# 402.291.0100
|
|
#
|
|
# See the AWIPS II Master Rights File ("Master Rights File.pdf") for
|
|
# further licensing information.
|
|
##
|
|
|
|
# ----------------------------------------------------------------
|
|
# Calculate Dewpoint Temperature (K) from Temperature (K) and Relative
|
|
# Humdity(0 to 100).
|
|
# ----------------------------------------------------------------
|
|
import numpy
|
|
from numpy import clip
|
|
from numpy import log
|
|
from numpy import sqrt
|
|
from numpy import zeros
|
|
from numpy import where
|
|
from numpy import equal
|
|
from numpy import isnan, NaN
|
|
from unit import celciusToKelvin
|
|
|
|
# build an array that contains the higher resolution dpFromTenths where possible, otherwise use the lower resolution dewpoint
|
|
def combineTemps(dewpoint,dpFromTenths):
|
|
return numpy.where(numpy.isnan(dpFromTenths), dewpoint, dpFromTenths)
|
|
|
|
##
|
|
# Calculate Dewpoint Temperature (K) from Temperature (K) and Relative
|
|
# Humdity(0 to 100).
|
|
# This function can operate on numpy arrays of the appropriate values.
|
|
#
|
|
# @param T: Temperature in degrees K
|
|
# @param RH: Relative humidity from 0 to 100
|
|
# @return: Dewpoint temperature in degrees K
|
|
# @rtype: numpy array of Python floats or Python float
|
|
def execute1(T,RH):
|
|
"Calculate dewpoint temperature(K) from temperature(K) and relative \
|
|
humidity(0 to 100)."
|
|
rhqc=clip(RH,1.0,100.0)
|
|
b=0.0091379024*T
|
|
b += 6106.396/T
|
|
b -= log(rhqc/100)
|
|
val = b*b
|
|
val -= 223.1986
|
|
val = sqrt(val)
|
|
DpT = b-val
|
|
DpT /= 0.0182758048
|
|
return DpT
|
|
|
|
def execute3(P,T,SHx):
|
|
eee=P*SHx/(622.0+0.378*SHx)
|
|
b=26.66082-log(eee)
|
|
result = (b-sqrt(b*b-223.1986))/0.0182758048
|
|
result[isnan(T)] = NaN
|
|
result[eee>980.5386] = NaN
|
|
result[eee<3.777647E-05] = NaN
|
|
return result
|
|
|
|
# @param dewpoint: dewpoint in degrees C
|
|
# @param dpFromTenths: dewpoint from thenths in degrees C
|
|
# @return: Dewpoint temperature in degrees K
|
|
# @rtype: numpy array of Python floats or Python float
|
|
def execute4(dewpoint,dpFromTenths):
|
|
return celciusToKelvin(combineTemps(dewpoint, dpFromTenths))
|
|
|
|
# @param dewpoint: dewpoint in degrees K
|
|
# @param temperature: Temperature in degrees K
|
|
# @param relHumidity: Relative humidity from 0 to 100
|
|
# @return: Dewpoint temperature in degrees K
|
|
# @rtype: numpy array of Python floats or Python float
|
|
def execute5(dewpoint,temperature,relHumidity):
|
|
TdRH = execute1(temperature, relHumidity)
|
|
return combineTemps(TdRH,dewpoint)
|