Title

Inter-Satellite Radiometer Calibration Of Windsat, Tmi And Ssmi

Keywords

Radiometer calibration; SSMI; TMI; Windsat

Abstract

NASAs Global Precipitation Measurement (GPM) Mission will consist of a constellation of cooperative satellites with microwave radiometers to make global rainfall measurements. It is crucial that the brightness temperature (Tb) measurements from these satellite radiometers be consistent with each other. This may be achieved by the radiometric inter-comparison of near-simultaneous collocated oceanic measurements from pairs of satellites. In this paper, we describe two methods of performing such inter-comparisons. The first uses a radiative transfer model (RTM) to predict expected Tb differences between a pair of radiometer channels due to frequency and incidence angle differences, and then computes the unexplained relative radiometric bias between the channels over a wide variety of environmental conditions. The other approach uses a multi-variable linear regression built from RTM Tb simulations of all frequency channels for V and H polarizations. These two approaches are used to compare external measurements between the TRMM Microwave Imager (TMI), WindSat (on Coriolis), and SSMI (on DMSPF-13 and F-14). ©2008 IEEE.

Publication Date

1-1-2008

Publication Title

International Geoscience and Remote Sensing Symposium (IGARSS)

Volume

2

Issue

1

Number of Pages

1216-1219

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/IGARSS.2008.4779220

Socpus ID

66549096980 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/66549096980

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