[A-AS04] [EE] Global Carbon Cycle Observation and Analysis

[AAS04-P01] Global carbon observations by GOSAT series

*Makoto Saito¹, Yukio Yoshida¹, Hibiki M Noda¹, Akihide Kamei¹ (1.National Institute for Environmental Studies)

Keywords:satellite observations, carbon cycle, greenhouse gases

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. This work summarizes the benefit of GOSAT observations for the study of global carbon cycle based on previous studies using GOSAT data, together with limitations in data coverage and density. Then we discuss scientific issues that should be addressed in future missions of greenhouse gases satellites observations.