Tracking on-orbit changes in response versus scan angle for MODIS reflective solar bands using Dome C

Aisheng Wu; Amit Angal; Xiaoxiong Xiong

doi:10.1117/12.2594219

1 August 2021 Tracking on-orbit changes in response versus scan angle for MODIS reflective solar bands using Dome C

Aisheng Wu, Amit Angal, Xiaoxiong Xiong

Proceedings Volume 11829, Earth Observing Systems XXVI; 1182910 (2021) https://doi.org/10.1117/12.2594219
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

MODIS instruments have been operating over 21 and 19 years on the Terra and Aqua spacecraft, respectively. As both instruments continue to operate beyond their design lifetime of 6 years, relying on the on-board calibrators alone is proving a challenge to accurately characterize their response at all scan angles, especially for the reflective solar bands. This study presents an alternative approach that relies on Earth view responses at multiple scan angles from a single site over Dome Concordia (Dome C), Antarctica, one of the most homogeneous land surfaces uniformly covered by snow. This approach has advantages of more frequent overpasses over the entire scan angle range than the desert sites.

Conference Presentation

Citation Download Citation

Aisheng Wu, Amit Angal, and Xiaoxiong Xiong "Tracking on-orbit changes in response versus scan angle for MODIS reflective solar bands using Dome C", Proc. SPIE 11829, Earth Observing Systems XXVI, 1182910 (1 August 2021); https://doi.org/10.1117/12.2594219

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