Fast passive microwave radiative transfer in precipitating clouds: toward direct radiance assimilation

Ralf Bennartz; Chris O'Dell; Thomas J. Greenwald; Andrew K. Heidinger

doi:10.1117/12.578801

22 December 2004 Fast passive microwave radiative transfer in precipitating clouds: toward direct radiance assimilation

Ralf Bennartz, Chris O'Dell, Thomas J. Greenwald, Andrew K. Heidinger

Proceedings Volume 5654, Microwave Remote Sensing of the Atmosphere and Environment IV; (2004) https://doi.org/10.1117/12.578801
Event: Fourth International Asia-Pacific Environmental Remote Sensing Symposium 2004: Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2004, Honolulu, Hawai'i, United States

Abstract

A new, fast radiative transfer model including scattering has been developed for the purpose of microwave radiance assimilation in cloudy and precipitating areas. The model uses a technique called successive order of interaction (SOI) which is based on a blending of the doubling and the successive order of scattering techniques. An adjoint and tangent linear version of the model are also available. Within this paper we present first applications of the SOI model. We compare brightness temperatures simulated from NCEP's Global Forecasting System (GFS) using a non-scattering version of the SOI model with global satellite data obtained by the Advanced Scanning Microwave Radiometer (AMSR-E) onboard NASA's Aqua spacecraft. Additionally, we show first sensitivity studies using the adjoint model for cases that include scattering by liquid and frozen precipitation.

Citation Download Citation

Ralf Bennartz, Chris O'Dell, Thomas J. Greenwald, and Andrew K. Heidinger "Fast passive microwave radiative transfer in precipitating clouds: toward direct radiance assimilation", Proc. SPIE 5654, Microwave Remote Sensing of the Atmosphere and Environment IV, (22 December 2004); https://doi.org/10.1117/12.578801

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