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Proceedings Paper

Atmospheric correction for land observing sensor AVNIR-2
Author(s): Sonoyo Mukai; Itaru Sano; Kotaro Ishii; Masayoshi Yasumoto; Toshiro Sugimura
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Paper Abstract

An algorithm for atmospheric correction of space based data given by AVNIR-2 sensor mounted on the land observing satellite ALOS is described here. Our procedure is based on the multiple scattering calculations in an Earth atmospheresurface system. The atmospheric constituents are roughly divided into gas molecules and aerosols. It is well known that the aerosol characteristics vary with time and place. This fact indicates that an aerosol retrieval problem should be solved before atmospheric correction of satellite data. Accordingly the atmospheric correction is treated step by step in this work. At the first step, atmospheric correction by gas molecules alone, what one calls Rayleigh correction, is considered. Then Rayleigh correction including the Earth surface height is dealt with. Finally atmospheric correction by both of gas molecules and aerosols is taken into account. In this phase, the aerosol properties are retrieved from the ground-based AERONET (Aerosol Robotics Network) data. The processed images after atmospheric correction according to the above three steps are compared with one another. It is shown that our atmospheric correction presents the improved satellite images.

Paper Details

Date Published: 8 December 2008
PDF: 8 pages
Proc. SPIE 7152, Remote Sensing of the Atmosphere and Clouds II, 71520I (8 December 2008); doi: 10.1117/12.804840
Show Author Affiliations
Sonoyo Mukai, Kinki Univ. (Japan)
Itaru Sano, Kinki Univ. (Japan)
Kotaro Ishii, Kinki Univ. (Japan)
Masayoshi Yasumoto, Kinki Univ. (Japan)
Toshiro Sugimura, RESTEC (Japan)

Published in SPIE Proceedings Vol. 7152:
Remote Sensing of the Atmosphere and Clouds II
Graeme L. Stephens; Takashi Y. Nakajima, Editor(s)

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