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Proceedings Paper • Open Access

Design and breadboarding activities of the second-generation Global imager (SGLI) on GCOM-C
Author(s): Yoshihiko Okamura; Kazuhiro Tanaka; Takahiro Amano; Masaru Hiramatsu; Koichi Shiratama

Paper Abstract

The Global Change Observation Mission (GCOM) is the next generation earth observation project of Japan Aerospace Exploration Agency (JAXA). GCOM concept will take over the Advanced Earth Observing Satellite-II (ADEOS-II) and develop into long-term monitoring of global climate change. The GCOM observing system consists of two series of medium size satellites: GCOM-W (Water) and GCOM-C (Climate). The Second-generation Global Imager (SGLI) on GCOM-C is a multi-band imaging radiometer with 19 spectral bands in the wavelength range of near-UV to thermal infrared. SGLI will provide high-accuracy measurements of Ocean, Atmosphere, Land and Cryosphere. These data will be utilized for studies to understand the global climate change, especially human activity influence on earth environments.

SGLI is a suite of two radiometers called Visible and Near Infrared Radiometer (VNR) and Infrared Scanner (IRS). VNR is a pushbroom-type radiometer with 13 spectral bands in 380nm to 865nm range. While having quite wide swath (1150km), instantaneous field of view (IFOV) of most bands is set to 250m comparing to GLI’s 1km requirement. Unique observation function of the VNR is along-track ±45deg tilting and polarization observation for 670nm and 865nm bands mainly to improve aerosol retrieval accuracy. IRS is a wiskbroom-type infrared radiometer that has 6 bands in 1μm to 12μm range. Swath and IFOV are 1400km and 250m to 1km, respectively.

This paper describes design and breadboarding activities of the SGLI instrument.

Paper Details

Date Published: 21 November 2017
PDF: 7 pages
Proc. SPIE 10566, International Conference on Space Optics — ICSO 2008, 105660D (21 November 2017); doi: 10.1117/12.2308222
Show Author Affiliations
Yoshihiko Okamura, Japan Aerospace Exploration Agency (Japan)
Kazuhiro Tanaka, Japan Aerospace Exploration Agency (Japan)
Takahiro Amano, NEC TOSHIBA Space Systems Ltd. (Japan)
Masaru Hiramatsu, NEC TOSHIBA Space Systems Ltd. (Japan)
Koichi Shiratama, NEC TOSHIBA Space Systems Ltd. (Japan)

Published in SPIE Proceedings Vol. 10566:
International Conference on Space Optics — ICSO 2008
Josiane Costeraste; Errico Armandillo; Nikos Karafolas, Editor(s)

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