[ACG51-02] Progress on validation of GOSAT and GOSAT-2 FTS SWIR L2 Products
Keywords:Greenhouse Gas , Satellite Observation, Greenhouse gases Observing SATellite (GOSAT), GOSAT-2, Validation, Total Carbon Column Observing Network
A successor of GOSAT, GOSAT-2 was launched on 29 Oct. 2018, and is now in operational. In addition to XCO2, XCH4, and XH2O, XCO (column-averaged dry air mole fraction of carbon monoxide) is retrieved from GOSAT-2 TANSO-FTS-2 SWIR spectra. The main approach of acquiring validation data for GOSAT-2 is the same as those for GOSAT. Ground-based FTSs data from TCCON and NDACC IRWG (Network for the Detection of Atmospheric Composition Change-InfraRed Working Group) sites will be used, and some sites will be co-located with lidar and sky-radiometer systems for extensive validation data acquisition. In-situ measurements and/or sampling of CO2, CH4, and CO onboard commercial and charter aircraft by CONTRAIL (Comprehensive Observation Network for TRace gases by AIrLiner) and NOAA (National Oceanic and Atmospheric Administration) will also be employed.
In this presentation, we focus on the current status of the GOSAT product validation and preliminary evaluation of the GOSAT-2 products using the TCCON data, as well as related validation activities.