4.1.1.0 atmosphere.getNonDispersivePathLength

atmosphere.getNonDispersivePathLength - Function

4.1.1 get the integrated Atmospheric Non-Dispersive Path
Description

Retrieve the integrated Atmospheric Path length (Non-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)
	allowed:	int
	Default:	0

Returns
Quantity

Example

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

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