GOSAT TANSO FTS and CAI ESA archive

In addition, the UV-band range observations provide the aerosol data over land. With the FTS spectra, imager data, and the retrieval algorithm to remove cloud and aerosol contamination, the column density of the gases can be retrieved with an accuracy of 1%. The full ESA archive and newly acquired/systematically processed GOSAT FTS and CAI products are available in the following processing levels: • FTS Observation mode 1 L1B, day (FTS_OB1D_1) • FTS Observation mode 1 L1B, night (FTS_OB1N_1) • FTS Special Observation L1B, day (FTS_SPOD_1) • FTS Special Observation L1B, night (FTS_SPON_1) • FTS L2 CO2 profile, TIR (FTS_P01T_2) • FTS L2 CH4 profile, TIR (FTS_P02T_2) • FTS L2 CH4 column amount, SWIR (FTS_C02S_2) • FTS L2 CO2 column amount, SWIR (FTS_C01S_2) • FTS L2 H2O column amount, SWIR (FTS_C03S_2) • FTS L3 global CO2 distribution, SWIR (FTS_C01S_3) • FTS L3 global CH4 distribution, SWIR (FTS_C02S_3) • FTS L4A global CO2 flux, annual in text format (FTS_F01M4A) • FTS L4A global CO2 flux, annual in netCDF format (FTS_F03M4A) • FTS L4A global CO2 distribution (FTS_P01M4B) • FTS L4A global CH4 flux, annual in text format (FTS_F02M4A) • FTS L4A global CH4 flux, annual in netCDF format (FTS_F04M4A) • FTS L4A global CH4 distribution (FTS_P02M4B) • CAI L1B data (CAI_TRB0_1) • CAI L1B+ (CAI_TRBP_1) • CAI L2 cloud flag (CAI_CLDM_2) • CAI L3 global reflect. distrib. clear sky (CAI_TRCF_3) • CAI L3 global radiance distrib. all pixels (CAI_TRCL_3) • CAI L3 global NDVI (CAI_NDVI_3) All products are made available as soon as processed and received from JAXA.

To satisfy NearRealTime requirements, ESA also provides access to the FTS L1X products, which are the NRT version of FTS L1B products. The main difference between L1X and L1B is that L1X does not include CAM data, best-estimate pointing-location, and target point classification, but most of all the L1X products are available on the ESA server between 2 and 5 hours after acquisition. The L1X products remain on the dissemination server for 5 days, the time for the corresponding L1B to be available.

A document describing the differences between L1X and L1B products is listed in the available resources. For more details on products, please refer to below product specifications.