Discrimination and retrieval of aerosol types using multi-channels including near-UV and polarization by GCOM-C/SGLI

Sonoyo Mukai; Itaru Sano; Makiko Nakata

doi:10.1117/12.2324300

22 October 2018 Discrimination and retrieval of aerosol types using multi-channels including near-UV and polarization by GCOM-C/SGLI

Sonoyo Mukai, Itaru Sano, Makiko Nakata

Author Affiliations +

Proceedings Volume 10776, Remote Sensing of the Atmosphere, Clouds, and Precipitation VII; 1077616 (2018) https://doi.org/10.1117/12.2324300
Event: SPIE Asia-Pacific Remote Sensing, 2018, Honolulu, Hawaii, United States

Abstract

The second global imager (SGLI) is on board the Japanese mission GCOM-C (SHIKISAI in Japanese), which was launched on December 23, 2017. The SGLI has multiple channels (19), including near-UV (0.380 μm) and violet (0.412 μm) wavelengths, and polarization channels in the red and near-IR wavelengths. This study aimed to demonstrate such advantages of SGLI as near-UV and polarization measurements for aerosol remote sensing. The role of near UV data in the detection of absorbing aerosols, such as biomass burning aerosols (BBA) or mineral dust, is examined on a global scale. Not only is this absorbing aerosol index defined in the near-UV wavelength region, but short wavelength infrared measurements were utilized to discriminate BBA from mineral dust particles. First, an understanding of aerosol types facilitates subsequent aerosol retrieval. Then, the characterization for classified aerosols is made based on the radiation simulations with multi-spectral radiance and polarization measurements in the red and near- IR.

Citation Download Citation

Sonoyo Mukai, Itaru Sano, and Makiko Nakata "Discrimination and retrieval of aerosol types using multi-channels including near-UV and polarization by GCOM-C/SGLI", Proc. SPIE 10776, Remote Sensing of the Atmosphere, Clouds, and Precipitation VII, 1077616 (22 October 2018); https://doi.org/10.1117/12.2324300

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