The optimum atmospheric correction and reflectance retrieval proced'ure would be based solely on the digital image and would require no in-situ field measurements during the satellite overflight, not only for operational applications but also for many research projects that use historical data sets. In this paper, The image-base atmospheric correction and reflectance retrieval approach was developed by the SPOT data about La Crau radiant calibration site and nearby research area in july, 1995. The approach was based on DOS method to calculate path radiance with the reasonable dark-object reflectance choice. The atmospheric transmittances , the downwelling atmospheric irradiance and atmospheric attenuation was infered from several atmospheric radiative transfer codes(Lowtran-7, Modtran-3, 65) with simulated atmospheres. At last, the aprroach was evaluated by comparing surface reflectances of La Crau site measured with one derived from SPOT data.

Date Published: 17 August 1998
PDF: 8 pages
Proc. SPIE 3502, Hyperspectral Remote Sensing and Application, (17 August 1998); doi: 10.1117/12.317793

Published in SPIE Proceedings Vol. 3502:
Hyperspectral Remote Sensing and Application
Robert O. Green; Qingxi Tong, Editor(s)