Title

Assessment Of The Long-Term Radiometric Calibration Stability Of The Trmm Microwave Imager And The Windsat Satellite Radiometers

Keywords

Global Precipitation Measurement (GPM); microwave radiometry; radiometric calibration; XCAL

Abstract

The NASA's Global Precipitation Measurement (GPM) mission uses a constellation of international satellites with microwave radiometers, to provide the next-generation of global observations of precipitation. The GPM Intersatellite Calibration Working Group (aka XCAL) has the responsibility to perform the radiometric calibration process to normalize all radiometers to a common source, the GPM Microwave Imager, which serves as a radiometric transfer standard. Prior to the launch of GPM instrument on February 28, 2014, the Tropical Rainfall Measurement Mission (TRMM) Microwave Imager has been used as a proxy for the GMI to develop procedures and data analysis algorithms for inter-comparing two similar, but not identical, radiometers. In this regard, this paper assesses the long-term radiometric calibration stability of TMI relative to WindSat polarimetric radiometer. CFRSL conducted two independent inter-comparisons over oceans in XCAL year (July 2005 - June 2006) and C Y 2011, and results are presented, which demonstrate deciKelvin relative stability over this greater than five-year period. © 2014 IEEE.

Publication Date

1-1-2014

Publication Title

13th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment, MicroRad 2014 - Proceedings

Number of Pages

187-191

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/MicroRad.2014.6878936

Socpus ID

84906768678 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84906768678

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