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Proceedings Paper

Spectral characterization of the Dunhuang calibration/validation site using hyperspectral measurements
Author(s): Changyong Cao; Lingling Ma; Sirish Uprety; Chuanrong Li; Lingli Tang
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Paper Abstract

There is a great need to establish satellite instrument calibration consistency using vicarious calibration sites with wellknown spectral and radiometric characteristics. The Dunhuang calibration/validation site located in the Gobi desert, China, and the Dome C in the Antarctic are two of the eight reference sites endorsed by the Committee on Earth Observation Satellites (CEOS) Working Group on Cal/Val (WGCV). This paper presents results of the spectral characterization of the Dunhuang calibration/validation site using hyperspectral measurements. Its spectra are compared with those from the Dome C, as well as with ground sample measurements with radiative transfer calculations. Further comparisons are made with the spectra obtained by the HSI on China's HJ-1A environmental satellite. The results show that the Dunhuang and Dome C sites have distinct spectral characteristics that complement each other for satellite instrument calibration in the reflective solar bands. This study is part of the collaboration effort by the CEOS/WGCV towards consistent satellite observations for the global earth observation system of systems (GEOSS).

Paper Details

Date Published: 29 October 2010
PDF: 10 pages
Proc. SPIE 7862, Earth Observing Missions and Sensors: Development, Implementation, and Characterization, 78620J (29 October 2010); doi: 10.1117/12.869606
Show Author Affiliations
Changyong Cao, National Oceanic and Aeronautic Administration (United States)
Lingling Ma, Academy of Opto-Electronics (China)
Sirish Uprety, DPSGS (United States)
Chuanrong Li, Academy of Opto-Electronics (China)
Lingli Tang, Academy of Opto-Electronics (China)


Published in SPIE Proceedings Vol. 7862:
Earth Observing Missions and Sensors: Development, Implementation, and Characterization
Xiaoxiong Xiong; Choen Kim; Haruhisa Shimoda, Editor(s)

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