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Principal Authors:
Fawwaz T. Ulaby
David G. Long,

Contributing Authors:
William Blackwell
Charles Elachi
Adrian Fung
Chris Ruf
Kamal Sarabandi
Jakob van Zyl
Howard Zebker

Language: English
ISBN: 978-0-472-11935-6


Code 8.10: Zenith Atmospheric Opacity and Transmissivity—Cloudy Atmosphere

Code Name: ZenithAtmosOpacity_CloudyAtmos.m

Description: Using a Standard Atmosphere model, code computes opacity of the entire atmosphere when containing a cloud layer extending between heights z3 and z4, along the zenith, from sea-surface height z1 = 0 to z2 = 32 km, at any frequency 0 < f < 50 GHz.

Input Variables:

  T0:    Sea-surface temperature (°C)
  P0:    Sea-surface total barometric pressure (mbar)
  ρ0:    Sea-surface total water vapor density (g/m3)
  f:    Frequency (GHz)
  z3:    Base height of cloud layer (km)
  z4:    Top height of cloud layer (km)
  mv:    Cloud water content (g/m3)
  Cloud type:    Water or ice

Output Products:

  τ0:    Zenith opacity (Np)
  ϒ (0,∞):    Zenith transmissivity (unitless)

Book Reference: Section 8-3 and 8-7

Code: module8_10.m