日本地球惑星科学連合2018年大会

講演情報

[EE] Eveningポスター発表

セッション記号 A (大気水圏科学) » A-CG 大気水圏科学複合領域・一般

[A-CG35] Global Carbon Cycle Observation and Analysis

2018年5月22日(火) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 7ホール)

コンビーナ:市井 和仁(千葉大学)、Patra Prabir(Research Institute for Global Change, JAMSTEC)、町田 敏暢(国立環境研究所、共同)、David Crisp(Jet Propulsion Laboratory)

[ACG35-P04] Global carbon cycle estimates in GOSAT/GOSAT-2 projects

*Makoto Saito1Tazu Saeki1Richao Cong1Tatsuya Miyauchi1Tsuneo Matsunaga1Shamil Maksyutov1 (1.国立環境研究所)

キーワード:global carbon cycle, satellite observation, GOSAT

Greenhouse gases Observing SATellite (GOSAT) has been monitoring atmospheric column carbon dioxide (XCO2) and methane (XCH4) concentrations from space since its launch in January 2009. The primary goal of GOSAT project is to successfully estimate global carbon budget on subcontinental scales using spatiotemporal distribution of XCO2 and XCH4. GOSAT observations have provided the basis for assessments of the values of space-based measurements of CO2 and CH4 concentrations. Additionally, GOSAT-2 which is the successor of GOSAT is scheduled for launch in the end of 2018. GOSAT-2 aims to monitor spatiotemporal distribution of greenhouse gases with higher level of accuracy and to improve the number of available observation data. This work summarizes GOSAT level 4 products on global CO2 and CH4 flux estimates based on an inversion system and the benefit of GOSAT observations for the study of global carbon cycle. We also introduce a new inversion system which is under construction as GOSAT-2 level 4 system; atmospheric transport and inverse models, a biospheric model using variability of solar-induced chlorophyll fluorescence by GOSAT observations, and a high resolution bottom-up anthropogenic emission inventory.