MODIS thermal emissive band calibration stability derived from surface targets

B. N. Wenny; X. Xiong; J. Dodd

doi:10.1117/12.830081

22 September 2009 MODIS thermal emissive band calibration stability derived from surface targets

B. N. Wenny, X. Xiong, J. Dodd

Proceedings Volume 7474, Sensors, Systems, and Next-Generation Satellites XIII; 74740W (2009) https://doi.org/10.1117/12.830081
Event: SPIE Remote Sensing, 2009, Berlin, Germany

Abstract

The 16 MODIS Thermal Emissive Bands (TEB), with wavelengths covering from 3.7μm to 14.4μm, are calibrated using scan-by-scan observations of an on-orbit blackbody (BB). Select Earth surface targets can be used to track the long-term consistency, stability and relative bias between the two MODIS instruments currently in orbit. Measurements at Dome C, Antarctica have shown a relative bias of less than 0.01K over a 5 year period between Terra and Aqua MODIS Band 31 (11μm). Dome C surface temperatures are typically outside the MODIS BB calibration range. Sea surface temperature (SST) measurements from data buoys provide a useful reference at higher scene temperatures. This paper extends the techniques previously applied only to Band 31 to the remaining TEB using both Dome C and SST sites. The long-term calibration stability and relative bias between Terra and Aqua MODIS is discussed.

Citation Download Citation

B. N. Wenny, X. Xiong, and J. Dodd "MODIS thermal emissive band calibration stability derived from surface targets", Proc. SPIE 7474, Sensors, Systems, and Next-Generation Satellites XIII, 74740W (22 September 2009); https://doi.org/10.1117/12.830081

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