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Aerosol and Surface Parameter Retrievals for a Multi-Angle, Multiband SpectrometerThis software retrieves the surface and atmosphere parameters of multi-angle, multiband spectra. The synthetic spectra are generated by applying the modified Rahman-Pinty-Verstraete Bidirectional Reflectance Distribution Function (BRDF) model, and a single-scattering dominated atmosphere model to surface reflectance data from Multiangle Imaging SpectroRadiometer (MISR). The aerosol physical model uses a single scattering approximation using Rayleigh scattering molecules, and Henyey-Greenstein aerosols. The surface and atmosphere parameters of the models are retrieved using the Lavenberg-Marquardt algorithm. The software can retrieve the surface and atmosphere parameters with two different scales. The surface parameters are retrieved pixel-by-pixel while the atmosphere parameters are retrieved for a group of pixels where the same atmosphere model parameters are applied. This two-scale approach allows one to select the natural scale of the atmosphere properties relative to surface properties. The software also takes advantage of an intelligent initial condition given by the solution of the neighbor pixels.
Document ID
20120013256
Acquisition Source
Jet Propulsion Laboratory
Document Type
Other - NASA Tech Brief
Authors
Broderick, Daniel
(California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 26, 2013
Publication Date
August 1, 2012
Publication Information
Publication: NASA Tech Briefs, August 2012
Subject Category
Computer Programming And Software
Report/Patent Number
NPO-47510
Distribution Limits
Public
Copyright
Public Use Permitted.
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