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MODIS TEB calibration approach in collection 6
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Paper Abstract

The MODerate Resolution Imaging Spectroradiometer (MODIS) is a heritage sensor operating on both the Terra and Aqua platforms, and has collected remotely sensed data for a combined mission time of twenty plus years. The instrument robustness and performance over their lifetimes has been very satisfactory and is well calibrated using the onboard calibrators (OBC). The radiometric fidelity of the MODIS instruments has ensured the high quality of science products derived from the Level 1B (L1B) imagery. MODIS Thermal Emissive Bands (TEB) are calibrated on-orbit using an on-board blackbody (BB) and through the space-view (SV) port. The MODIS BB is nominally controlled at 290K for Terra and at 285K for Aqua. Periodically, a BB warm-up and cool-down (WUCD) process is implemented, during which the BB temperatures vary from instrument ambient (approximately 272K) to 315K. The calibration coefficients for the 16 TEB bands are characterized using the above mentioned on-board BB operations (i.e. using nominal and WUCD operations). This paper will focus on the calibration algorithms of the TEB developed for collection 6 (C6) processing, its impact on the Level 1B (L1B) product in comparison to collection 5 (C5), and the methodology for issuing a Look Up Table (LUT) update for L1B processing.

Paper Details

Date Published: 19 November 2012
PDF: 11 pages
Proc. SPIE 8533, Sensors, Systems, and Next-Generation Satellites XVI, 85331M (19 November 2012); doi: 10.1117/12.974231
Show Author Affiliations
Brian N. Wenny, Sigma Space Corp. (United States)
Aisheng Wu, Sigma Space Corp. (United States)
Sriharsha Madhavan, Science Systems and Applications, Inc. (United States)
Zhipeng Wang, Sigma Space Corp. (United States)
Yonghong Li, Science Systems and Applications, Inc. (United States)
Na Chen, Sigma Space Corp. (United States)
Kwo-Fu Chiang, Sigma Space Corp. (United States)
Xiaoxiong Xiong, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 8533:
Sensors, Systems, and Next-Generation Satellites XVI
Roland Meynart; Steven P. Neeck; Haruhisa Shimoda, Editor(s)

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