Dr. Junqiang Zhang Profile

Dr. Junqiang Zhang

at CIOMP

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Proceedings Article | 21 February 2014 Paper

Cloud and aerosol polarimetric imager

Junqiang Zhang, Jianbing Shao, Changxiang Yan

Proceedings Volume 9142, 91420X (2014) https://doi.org/10.1117/12.2054572

KEYWORDS: Calibration, Polarization, Polarizers, Aerosols, Clouds, Short wave infrared radiation, Sensors, Polarimetry, Imaging systems, Sun

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Cloud and Aerosol Polarimetric Imager (CAPI), which is the first onboard cloud and aerosol Polarimetric detector of CHINA, is developed to get cloud and aerosol data of atmosphere to retrieve aerosol optical and microphysical properties to increase the reversion precision of greenhouse gasses (GHGs). The instrument is neither a Polarization and Direction of Earth’s Reflectance (POLDER) nor a Directional Polarimetric Camera (DPC) type polarized camera. It is a multispectral push broom system using linear detectors, and can get 5 bands spectral data, from ultraviolet (UV) to SWIR, of the same ground feature at the same time without any moving structure. This paper describes the CAPI instrument characteristics, composition, calibration, and the nearest development.

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