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atmosphere - Constructor



Package utility
Module benchmark
Tool atmosphere


Construct an atmosphere tool


Synopsis
atmosphere(altitude, temperature, pressure, maxAltitude, humidity, dTem_dh, dP, dPm, h0, atmType)


Description
This is used to construct atmosphere tool with the condition at the position the user wants to calculate the profile, the integrated opatical depth on each band, the integrated optical depth for each channel of each band, the absorption coefficients, the dispersive and non-dispersive phase delay factor, the sky brightness, etc. This returns a Glish variable containing the tool of atmosphere.



Arguments

altitude in Site altitude
    Allowed: Quantity with units of altitude, meter
    Default: 2550m
temperature in Ambient Temperature
    Allowed: Quantity with units of temperature, K
    Default: 270.32K
pressure in Ambient pressure
    Allowed: Quantity with units of pressure, Pascal
    Default: 73585Pa
maxAltitude in altitude of the top pf the modelled atmosphere
    Allowed: Quantity with dimension of length, meter
    Default: 45000m
humidity in used to guess water
    Allowed: 0 - 100
    Default: 20
dTem_dh in the derivative of temperature with respect to height
    Allowed: Quantity with units of K/m
    Default: -0.0056K/m
dP in initial pressure step
    Allowed: Quantity with the units of pressure, Pa
    Default: 500Pa
dPm in pressure multiplicative factor for steps
    Allowed: real value
    Default: 1.25
h0 in scale height for water( exp distribution )
    Allowed: Quantity with the dimension of length, meter
    Default: 2000m
atmType in atmospheric type
    Allowed: 1(tropical),2(mid latitude summer),3(mid latitude winter) ,4(subarctic summer),5(subarctic winter), dimensionless
    Default: 2


Returns
atmosphere tool


Example
 myatm:= atmosphere(altitude='2550.m', temperature='270.32K',
                    pressure='73585Pa',maxAltitude='45000m',
                    humidity=20, dTem_dh='-0.0056K/m',
    	            dP='500Pa', dPm=1.25, h0='2000.m',atmtype=2)





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2006-10-15