Climate change and sounder radiometric stability

Thomas S. Pagano; Hartmut H. Aumann; Evan Manning

doi:10.1117/12.826994

12 August 2009 Climate change and sounder radiometric stability

Thomas S. Pagano, Hartmut H. Aumann, Evan Manning

Proceedings Volume 7456, Atmospheric and Environmental Remote Sensing Data Processing and Utilization V: Readiness for GEOSS III; 745602 (2009) https://doi.org/10.1117/12.826994
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Satellite instrument radiometric stability is critical for climate studies. The Atmospheric Infrared Sounder (AIRS) radiances are of sufficient stability and accuracy to serve as a climate data record as evidenced by comparisons with the global network of buoys. In this paper we examine the sensitivity of derived geophysical products to potential instrument radiometric stability issues due to diurnal, orbital and seasonal variations. Our method is to perturb the AIRS radiances and examine the impact to retrieved parameters. Results show that instability in retrieved temperature products will be on the same order of the brightness temperature error in the radiances and follow the same time dependences. AIRS excellent stability makes it ideal for examining impacts of instabilities of future systems on geophysical parameter performance.

Citation Download Citation

Thomas S. Pagano, Hartmut H. Aumann, and Evan Manning "Climate change and sounder radiometric stability", Proc. SPIE 7456, Atmospheric and Environmental Remote Sensing Data Processing and Utilization V: Readiness for GEOSS III, 745602 (12 August 2009); https://doi.org/10.1117/12.826994

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