GCOM-C/SGLI L2 AeRosol properties using Numerical Prediction

Product Summary

GCOM-C/SGLI L2 AeRosol properties using Numerical Prediction dataset is obtained from the SGLI sensor onboard GCOM-C and produced by the Japan Aerospace Exploration Agency (JAXA). 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. While the particle shapes, real parts of complex refraction indices, and size distributions of large and small particles are assumed to be fixed, the fraction of small particles and complex refraction indices (in terms of SSA) vary. The algorithm assumes reasonable aerosol parameters for the SGLI observations and derives the contents of this dataset.
The provided format is HDF5. The spatial resolution is 1 km. The projection method is EQA. The spatial coverage is "Tile". The current version of the product is Version 3. The Version 2 is also available.

Platform

GCOM-C

Sensor

SGLI

Coverage

Temporal Coverage

2018-01-01 to Present

Spatial Coverage

Bounding Rectangle
(90.0°, -180.0°, -90.0°, 180.0°)

Resolution

1 km

Location

• GEOGRAPHIC REGION > GLOBAL