Japan Geoscience Union Meeting 2014

Presentation information

Print

International Session (Oral)

Symbol A (Atmospheric, Ocean, and Environmental Sciences) » A-CG Complex & General

[A-CG06_28PM2] Satellite Earth Environment Observation

Mon. Apr 28, 2014 4:15 PM - 6:00 PM 315 (3F)

Convener:*Riko Oki(Japan Aerospace Exploration Agency), Yoshiaki Honda(Chiba University, Center for Environmental), Kenlo Nishida Nasahara(Institute of Agricultural and Forest Engineering, University of Tsukuba), Takashi Nakajima(Tokai University Department of Network and Computer Engineering, School of Information and Design Engineering), Taikan Oki(Institute of Industrial Science, The University of Tokyo), Yokota Tatsuya(Center for Global Environmental Research, National Institute for Environmental Studies), Yukari N. Takayabu(Atmosphere and Ocean Research Institute(AORI), The University of Tokyo), Hiroshi Murakami(Earth Observation Research Center, Japan Aerospace Exploration Agency), Hajime Okamoto(Research Institute for Applied Mechanics,Kyushu University), Chair:Tatsuya Yokota(National Institute for Environmental Studies), Riko Oki(Japan Aerospace Exploration Agency)

5:00 PM - 5:15 PM

[ACG06-03] Greenhouse gas observation by GOSAT during its five-year nominal operation period

*Tatsuya YOKOTA1, Nobuhiro KIKUCHI1, Yukio YOSHIDA1, Andrey BRIL1, Sergey OSHCHEPKOV1, Makoto INOUE1, Isamu MORINO1, Osamu UCHINO1, Heon-sook KIM1, Hiroshi TAKAGI1, Makoto SAITO1, Shamil MAKSYUTOV1, Akira YUKI1, Sayaka KANEKON1, Fumie KAWAZOE1, Masataka AJIRO1 (1.National Institute for Environmental Studies)

Keywords:greenhouse gases, carbon dioxide, methane, column concentration, flux, GOSAT

The Greenhouse gases Observing SATellite (GOSAT) recently completed its planned nominal operation period of five years on 23 January 2014, and it now entered the phase of extended operation. During the past five years, almost all of the GOSAT standard data products were opened to general users. These data products are publicly available and can be obtained through the GOSAT User Interface Gateway (GUIG, http://www.data.gosat.nies.go.jp/). From the spectral data that GOSAT collected, the concentrations of major greenhouse gases (GHGs), namely carbon dioxide (CO2) and methane (CH4), were retrieved, and their precisions are now at the level of much less than 1%. These concentration data are used to estimate the monthly surface fluxes of CO2 and CH4 on sub-continental and ocean-basin scales. The data are also utilized to monitor GHGs' temporal and spatial changes. Various reports on the results of GOSAT data analysis have appeared in peer-reviewed journals so far. The topics reported include the detection of large GHG point sources and anomalies in the inter-annual trend of CO2 uptake by terrestrial biosphere.In this presentation, we will summarize the five-year-long GHG observation by GOSAT and present the global distributions of the GHG concentrations and the surface flux estimates. Also, we will touch on the current status of researches conducted within the framework of the GOSAT Research Announcement.