11:05 AM - 11:20 AM
[U02-06] International research collaboration in GOSAT-based greenhouse gas observation
Keywords:greenhouse gas, carbon dioxide, methane, calibration and validation, retrieval algorithm, carbon flux estimation
(1) Data processing algorithms: developing algorithms for retrieving carbon dioxide (CO2) and methane (CH4) concentrations from GOSAT data, detecting light interfering clouds and aerosols, and computing solar-induced fluorescence,
(2) Data validation: monitoring GHG phenology, developing instrument prototypes for GHG measurement, inter-comparing several GOSAT GHG data, evaluating vegetation indices, and comparing GOSAT GHG data with model simulations,
(3) Carbon balance estimation and atmospheric transport modeling: estimating surface CO2 and CH4 fluxes from GOSAT GHG data,
(4) Data application: researching GOSAT-based NDVI, CO2 and CH4 distribution relationships, monitoring wildfires and volcanic activities, and understanding relationships between vegetation activities and atmospheric CO2 and CH4.
We hold annual GOSAT RA meeting to facilitate research collaboration through the exchange of new research findings.
Further, the members of the GOSAT Project at JAXA and NIES collaborate closely with those of the NASA OCO-2 team (previously the Atmospheric CO2 Observations from Space (ACOS) team) through frequently exchanging latest information and research findings during bi-weekly teleconferences, field campaigns, and annual workshops.
In Europe, the European Space Agency is leading GHG-Climate Change Initiative (GHG-CCI, http://www.esa-ghg-cci.org/), promoting long-term GHG emission estimation using SCIAMACHY data and GOSAT data.
We herein explain the above international collaborative activities and also report the progress of the ongoing GOSAT Project.