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Proceedings Paper

Long-term observations of water and climate by AMSR-E and GCOM-W
Author(s): Misako Kachi; Keiji Imaoka; Hideyuki Fujii; Marehito Kasahara; Norimasa Ito; Keizo Nakagawa; Taikan Oki; Haruhisa Shimoda
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Paper Abstract

The Global Change Observation Mission (GCOM) consists of two satellite observing systems and three generations to achieve global, comprehensive, and long-term Earth monitoring. The first satellite of the GCOM-W (Water) series will be GCOM-W1 with the Advanced Microwave Scanning Radiometer-2 (AMSR2) onboard. AMSR2 is a successor of AMSR on the Advanced Earth Observing Satellite-II (ADEOS-II) and AMSR for EOS (AMSR-E) on NASA's Aqua satellite. Basic performance of AMSR2 will be similar to that of AMSR-E based on the minimum requirement of data continuity of AMSR-E, with several enhancements including larger main reflector (2.0 m), additional channels in C-band receiver, and improved calibration system. Development of the GCOM-W1 satellite and sensor system is going quite smoothly. The satellite system is now in Phase-C and finished the CDR No.1 in July 2009. The CDR No.2 is scheduled in autumn 2009 for reviewing the additional items. The AMSR2 instrument is now in Phase-D and the flight model is being manufactured. Retrieval algorithms are being developed by collaboration with principal investigators for the eight standard products and possible research products. Experiences through the AMSR-E research activities and the data themselves can be directly utilized in the AMSR2 algorithm development. AMSR-E continues its observation nearly seven years. Taking over from the AMSR-E observations to GCOM, we will be able to construct over 20-years data set of unique geophysical parameters including all-weather sea surface temperature and soil moisture content. Current target launch year of GCOM-W1 is in Japanese fiscal year 2011.

Paper Details

Date Published: 22 September 2009
PDF: 9 pages
Proc. SPIE 7474, Sensors, Systems, and Next-Generation Satellites XIII, 74740M (22 September 2009); doi: 10.1117/12.831253
Show Author Affiliations
Misako Kachi, Japan Aerospace Exploration Agency (Japan)
Keiji Imaoka, Japan Aerospace Exploration Agency (Japan)
Hideyuki Fujii, Japan Aerospace Exploration Agency (Japan)
Marehito Kasahara, Japan Aerospace Exploration Agency (Japan)
Norimasa Ito, Japan Aerospace Exploration Agency (Japan)
Keizo Nakagawa, Japan Aerospace Exploration Agency (Japan)
Taikan Oki, Japan Aerospace Exploration Agency (Japan)
The Univ. of Tokyo (Japan)
Haruhisa Shimoda, Japan Aerospace Exploration Agency (Japan)
Tokai Univ. Research and Information Ctr. (Japan)

Published in SPIE Proceedings Vol. 7474:
Sensors, Systems, and Next-Generation Satellites XIII
Roland Meynart; Steven P. Neeck; Haruhisa Shimoda, Editor(s)

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