Actions for Testing the Two-Layer Model for Correcting Clear Sky Reflectance near Clouds

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Testing the Two-Layer Model for Correcting Clear Sky Reflectance near Clouds

Author
Levy, Rob
Published
May 18, 2015.
Physical Description
1 electronic document
Additional Creators
Evans, Frank, Varnai, Tamas, Marshak, Alexander, and Wen, Guoyong
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
A two-layer model (2LM) was developed in our earlier studies to estimate the clear sky reflectance enhancement due to cloud-molecular radiative interaction at MODIS at 0.47 micrometers. Recently, we extended the model to include cloud-surface and cloud-aerosol radiative interactions. We use the LES/SHDOM simulated 3D true radiation fields to test the 2LM for reflectance enhancement at 0.47 micrometers. We find: The simple model captures the viewing angle dependence of the reflectance enhancement near cloud, suggesting the physics of this model is correct; the cloud-molecular interaction alone accounts for 70 percent of the enhancement; the cloud-surface interaction accounts for 16 percent of the enhancement; the cloud-aerosol interaction accounts for an additional 13 percent of the enhancement. We conclude that the 2LM is simple to apply and unbiased.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20150018351.
GSFC-E-DAA-TN24117.
2015 MODIS-VIIRS Science Team Meeting; 18-22 May 2015; Silver Spring, MD; United States.
Terms of Use and Reproduction
Copyright, Distribution as joint owner in the copyright.
View MARC record | catkey: 17531520