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Proceedings Paper

Status of GCOM-W1/AMSR2 development and science activities
Author(s): Misako Kachi; Keiji Imaoka; Hideyuki Fujii; Akira Shibata; Marehito Kasahara; Yukiei Iida; Norimasa Ito; Keizo Nakagawa; Haruhisa Shimoda
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Paper Abstract

Japan Aerospace Exploration Agency (JAXA) is developing the Advanced Microwave Scanning Radiometer-2 (AMSR2). AMSR2 will be onboard the GCOM-W1 satellite, which is the first satellite of the Japan's Global Change Observation Mission (GCOM). The second satellite of GCOM will be GCOM-C1, which will carry the Secondgeneration Global Imager (SGLI). AMSR2 is being developed based on the experience of the AMSR for the EOS (AMSR-E), which is currently in operation on EOS Aqua satellite more than 6-years. The AMSR2 instrument is a dualpolarized total power microwave radiometer system with six frequency bands ranging from 7GHz to 89GHz. Major changes in performance from AMSR-E include the larger antenna diameter of 2.0m for better spatial resolution, additional 7.3GHz channels for mitigating radio-frequency interference, and improvements of calibration system. Engineering model of AMSR2 is being manufactured and tested including performance testing of calibration target in thermal vacuum environment. The GCOM-W1 satellite system finished the preliminary design review before proceeding to Phase-C in June 2008. AMSR2 will observe various water-related geophysical parameters. We expect a long-term continuity by leading the AMSR2 to the current AMSR-E observation that has been accumulating six years of data records. This will contribute to the long-term monitoring of climate variability and daily operational applications. Current target launch year of GCOM-W1 is the beginning of 2012.

Paper Details

Date Published: 9 October 2008
PDF: 8 pages
Proc. SPIE 7106, Sensors, Systems, and Next-Generation Satellites XII, 71060P (9 October 2008); doi: 10.1117/12.801228
Show Author Affiliations
Misako Kachi, Japan Aerospace Exploration Agency (Japan)
Keiji Imaoka, Japan Aerospace Exploration Agency (Japan)
Hideyuki Fujii, Japan Aerospace Exploration Agency (Japan)
Akira Shibata, Meteorological Research Institute (Japan)
Marehito Kasahara, Japan Aerospace Exploration Agency (Japan)
Yukiei Iida, Japan Aerospace Exploration Agency (Japan)
Norimasa Ito, Japan Aerospace Exploration Agency (Japan)
Keizo Nakagawa, Japan Aerospace Exploration Agency (Japan)
Haruhisa Shimoda, Japan Aerospace Exploration Agency (Japan)
Tokai Univ. Research and Information Ctr. (Japan)


Published in SPIE Proceedings Vol. 7106:
Sensors, Systems, and Next-Generation Satellites XII
Roland Meynart; Steven P. Neeck; Haruhisa Shimoda; Shahid Habib, Editor(s)

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