Validation of the dust layer structure over the Taklimakan Desert, China, by the CALIOP space-borne lidar using ground-based lidar: Part II

Yoshitaka Jin; Kenji Kai; Takashi Shibata; Kecun Zhang; Hongfei Zhou

doi:10.1117/12.871121

13 November 2010 Validation of the dust layer structure over the Taklimakan Desert, China, by the CALIOP space-borne lidar using ground-based lidar: Part II

Yoshitaka Jin, Kenji Kai, Takashi Shibata, Kecun Zhang, Hongfei Zhou

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Proceedings Volume 7856, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions III; 785609 (2010) https://doi.org/10.1117/12.871121
Event: SPIE Asia-Pacific Remote Sensing, 2010, Incheon, Korea, Republic of

Abstract

A ground-based lidar observation was carried out in the northwest of China to validate the space-borne lidar CALIOP on 23 - 25 March 2009. Combining backscatter profiles of the ground-based lidar and CALIOP, lidar ratio (extinction to backscattering ratio) was retrieved for 532nm and 1064nm wavelengths by using performance function that minimizing the difference between the ground-based lidar and CALIOP for backscattering coefficient. The correlation coefficients between them were 0.98 for 532nm and 0.95 1064nm, respectively. Using the retrieved lidar ratio, the color ratio and aerosol optical depth (AOD) were calculated. The observed aerosols and clouds were classified into three groups (boundary layer dust, free tropospheric aerosol and cirrus cloud) according to a relationship between color ratio and 532nm-backscattering coefficient. We also validate the backscattering coefficient for CALIPSO level 2 data. The result shows that it is underestimated by 21 % compared to this study.

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Yoshitaka Jin, Kenji Kai, Takashi Shibata, Kecun Zhang, and Hongfei Zhou "Validation of the dust layer structure over the Taklimakan Desert, China, by the CALIOP space-borne lidar using ground-based lidar: Part II", Proc. SPIE 7856, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions III, 785609 (13 November 2010); https://doi.org/10.1117/12.871121

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