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Proceedings Paper

Calibration of NOAA-17 AVHRR solar reflectance channels using the time series observation of the desert target
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Paper Abstract

NOAA has long term experience in the vicarious calibration of the solar reflectance channels of Advanced Very High Resolution Radiometer (AVHRR) onboard NOAA and Metop-A satellites. It has been providing the monthly operational calibration coefficients for all the operational AVHRRs over the past several years. The objective of this paper is to report our current results of the new version of AVHRR operational calibration algorithm. We use the maximum NDVI data and a thermal channel brightness temperature threshold to select non-vegetation pixels free of cloud and dust-storm. Water vapor correction is implemented for Channel 2 measurement. The integrated precipitable water vapor content is derived based on the linear relationship between the brightness temperature difference of the two AVHRR thermal channels and Terra MODIS water vapor products. The results show that this improved algorithm reduces the uncertainty of NOAA-17 AVHRR channel 1 and 2 calibration parameters.

Paper Details

Date Published: 27 September 2007
PDF: 11 pages
Proc. SPIE 6677, Earth Observing Systems XII, 66770Z (27 September 2007);
Show Author Affiliations
Fangfang Yu, ERT, Inc. (United States)
Xiangqian Fred Wu, NOAA/NESDIS/STAR (United States)

Published in SPIE Proceedings Vol. 6677:
Earth Observing Systems XII
James J. Butler; Jack Xiong, Editor(s)

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