Japan Geoscience Union Meeting 2016

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International Session (Poster)

Symbol A (Atmospheric and Hydrospheric Sciences) » A-CG Complex & General

[A-CG10] Earth and Planetary satellite observation projects Part II: Satellite Earth Environment Observation

Mon. May 23, 2016 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall HALL6)

Convener:*Riko Oki(Japan Aerospace Exploration Agency), Tadahiro Hayasaka(Graduate School of Science, Tohoku University), Kaoru Sato(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Masaki Satoh(Atmosphere and Ocean Research Institute, The University of Tokyo), Yoshiaki HONDA(Center for Environmental Remote Sensing, Chiba University), Kenlo Nasahara(Faculty of Life and Environmental Sciences, University of Tsukuba), Takashi Nakajima(Tokai University, School of Information Science & Technology, Dept. of Human & Information Science), Taikan Oki(Institute of Industrial Science, The University of Tokyo), Tsuneo Matsunaga(Center for Environmental Measurement and Analysis, National Institute for Environmental Studies), Yukari Takayabu(Atmosphere and Ocean Research Institute, the University of Tokyo), Hiroshi Murakami(Earth Observation Research Center, Japan Aerospace Exploration Agency), Hajime Okamoto(Kyusyu University), Gail Skofronick Jackson(NASA Goddard Space Flight Center), Paul Chang(NOAA College Park), David Crisp(Jet Propulsion Laboratory, California Institute of Technology)

5:15 PM - 6:30 PM

[ACG10-P08] Preliminary sensitivity study of the GOSAT-2 FTS SWIR retrievals based on the designed specifications

*Yukio Yoshida1, Akihide Kamei1, Isamu Morino1, Makoto Saito1, Hibiki Noda1, Tsuneo Matsunaga1 (1.NIES)

Keywords:GOSAT-2, XCO2, XCH4

The Greenhouse gases Observing SATellite (GOSAT) was launched in January 2009 and observed global distribution of the column-averaged dry air mole fractions of carbon dioxide and methane (XCO2 and XCH4) for about seven years. As a successor mission to the GOSAT, GOSAT-2 is planned to be launched in early 2018, and its critical design review (CDR) was completed. GOSAT-2 also has a Fourier transform spectrometer (FTS) like GOSAT to obtain short-wavelength infrared (SWIR) light reflected from the earth's surface and thermal infrared (TIR) radiation emitted from the ground and atmosphere. According to the current design of the FTS-2 (FTS onboard the GOSAT-2), its SNR is higher than or almost equal to that onboard the GOSAT, and it covers the 2.3 μm carbon monoxide (CO) band as well as the 1.6 and 2.0 μm CO2 bands and 1.67 μm CH4 band. Our preliminary sensitivity test shows that the SNR improvement in SWIR bands reduces the retrieval random error (precision) about 15% for XCO2 and 35% for XCH4 than those of GOSAT.