GCOM-C/SGLI L2 AeRosol properties using Numerical Prediction

GCOM-C is a Sun-synchronous sub-recurrent orbit satellite launched on December 23, 2017. It mounts SGLI sensor to observe long-term geophysical conditions based on 28 variables, including aerosol and vegetation, out of four Earth subsystems: atmosphere, land, ocean, and cryosphere.

These data are helpful to improve the global warming prediction accuracy. The SGLI has a swath of 1150 km in the visible band and 1400 km in the infrared band. Level 2 products consist of derived physical variables based on Level 1B products, such as meteorological data.The contents are listed in the following:AROT: Aerosol Optical Thickness over land and ocean at 500 nm (dimensionless).ARAE: Angstrom Exponent over land and ocean at 500 nm and 380 nm (dimensionless).ASSA: Single Scattering Albedo over land and ocean at 380 nm (dimensionless).AROT_uncertainty, AROT_uncertainty, AROT_uncertainty: The uncertainties of AROT, ARAE and ASSA, respectively (dimensionless).The utilized aerosol optical model for the retrieval is the same for both over land and ocean, and the coefficients are based on the skyradiometer observations.