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Proceedings Paper

Assimilation of satellite cloudy radiances: forward and adjoint radiative transfer modeling
Author(s): Fuzhong Weng; Quanhua Liu
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Paper Abstract

Satellite sensor designs, data assimilation and retrievals of geophysical parameters all require a fast and accurate radiative transfer model. In general, Stokes vector can be derived from the differential and integral radiative transfer equation. The discrete ordinate method was developed to approximate the integral term so that the equation is linearized to a set of the ordinary differential equations that are then solved from the eigenvalue method. In this study, we further derives the radiance gradient (Jacobian) for a scattering and emission atmosphere, which is a crucial component in satellite data assimilation. In addition, we also review land and ocean surface emissivity models affecting both the forward and adjoint computations.

Paper Details

Date Published: 14 April 2003
PDF: 9 pages
Proc. SPIE 4899, Atmospheric and Oceanic Processes, Dynamics, and Climate Change, (14 April 2003); doi: 10.1117/12.466701
Show Author Affiliations
Fuzhong Weng, National Oceanic and Atmospheric Administration (United States)
Quanhua Liu, National Oceanic and Atmospheric Administration (United States)


Published in SPIE Proceedings Vol. 4899:
Atmospheric and Oceanic Processes, Dynamics, and Climate Change
Zhaobo Sun; Fei-Fei Jin; Toshiki Iwasaki, Editor(s)

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