Recent progress on cross-comparison of terra and aqua MODIS calibration using Dome C

Xiaoxiong Xiong; Aisheng Wu; Amit Angal; Brian Wenny

doi:10.1117/12.829971

22 September 2009 Recent progress on cross-comparison of terra and aqua MODIS calibration using Dome C

Xiaoxiong Xiong, Aisheng Wu, Amit Angal, Brian Wenny

Proceedings Volume 7474, Sensors, Systems, and Next-Generation Satellites XIII; 747411 (2009) https://doi.org/10.1117/12.829971
Event: SPIE Remote Sensing, 2009, Berlin, Germany

Abstract

For the past few years, the MODIS Characterization Support Team (MCST) at NASA/GSFC has continued and extended its effort to monitor the Terra and Aqua MODIS calibration long-term stability and to examine their calibration consistency using observations made over the Dome Concordia, Antarctica. Early results from Dome C observations show that the calibration of bands 1 and 2 (0.65 and 0.86 micron) has been consistent within 1-2% and bands 31 and 32 (11 and 12 micron) differences are less than a few tenths of Kelvin, demonstrating that this site can provide a useful calibration reference for a wide range of Earth-observing sensors in the spectral region from visible (VIS) to long-wave infrared (LWIR). Recently, several locations at the Dome C area have been endorsed by the CEOS as radiometric reference sites for sensor cross-comparison. This, as a result, has led to an invitation to the broad earth-observing community to participate in a CEOS comparison of top-of-atmosphere (TOA) spectral radiance/reflectance over the Dome C sites. In this paper, we provide a brief description of the methodologies applied in our study and report recent progress on cross-comparison of Terra and Aqua MODIS spectral bands using observations over the Dome C area, including data provided in support of the upcoming CEOS sensor cross-comparison.

Citation Download Citation

Xiaoxiong Xiong, Aisheng Wu, Amit Angal, and Brian Wenny "Recent progress on cross-comparison of terra and aqua MODIS calibration using Dome C", Proc. SPIE 7474, Sensors, Systems, and Next-Generation Satellites XIII, 747411 (22 September 2009); https://doi.org/10.1117/12.829971

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