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atmosphere.getDispersiveWetPathLength - Function

4.1.1 get the integrated wet Atmospheric Dispersive Path


Description

Retrieve the integrated wet Atmospheric Path length (Dispersive part) along the atmospheric path corresponding to the 1st guess water column for channel nc in spectral window spwid.

Arguments





Inputs

nc

Channel number (0-based; defaults to reference channel)

allowed:

int

Default:

-1

spwid

Int standing for spectral window id (0-based). The value must be >= 0.

allowed:

int

Default:

0

Returns
Quantity

Example

 
 
w = at.getGroundWH2O()  
nb = 1  
fC = qa.quantity([850.0], ’GHz’)  
fW = qa.quantity([0.5], ’GHz’)  
nfR = qa.quantity([0.5], ’GHz’)  
at.initSpectralWindow(nb, fC, fW, fR)  
print "Total Dispersive Delay at ", fC[’value’][0], fC[’unit’], " for 1.0 air mass: ",\  
      at.getDispersiveWetPathLength()[’value’][0] /  w[’value’][0], " meters per mm of water vapor"  
print "(",100*(at.getDispersiveWetPathLength()[’value’][0] /  w[’value’][0])/(at.getNonDispersiveWetPathLength()[’value’][0] / w[’value’][0]),\  
      "% of the Non-dispersive one )"  
 
 

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