Journal
FRONTIERS IN EARTH SCIENCE
Volume 10, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/feart.2022.991025
Keywords
stratospheric aerosol; temporal and spatial distribution; CALIPSO lidar; Xinjiang; stratosphere
Categories
Funding
- natural science foundation of China GuangXi
- Qinzhou Science and Technology Bureau project [2020GXNSFAA297266]
- [20189910]
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Based on data from CALIPSO, the optical properties of stratospheric aerosols in Xinjiang, China were analyzed. The optical depth of stratospheric aerosols was found to be higher in spring and summer compared to autumn and winter. The backscattering ratio of aerosol particles decreased with increasing altitude, with the bottom of the stratosphere being the main contributor to the optical depth. Moreover, the backscattering ratio gradually increased from south to north in the latitudinal distribution.
Based on level 3 stratosphere aerosol profile data retrieved from CALIPSO during 2007-2018, optical properties of stratospheric aerosols over the Xinjiang China are analyzed. The results are as follows:Firstly, the optical depth of stratospheric aerosol over Xinjiang is considerably higher in spring (0.0006) and summer (0.0009), than in autumn (0.0003) and winter (0.0002). Secondly, the backscattering ratio of stratospheric aerosol particles decreases with the increase of altitude, with the bottom of the stratosphere as the main contributor of the optical depth. Thirdly, for latitudinal distribution (35 & DEG;-50 & DEG; north latitude), the backscattering ratio gradually increases from south to north, with an average value that reaches 0.0013 x 10(-3) km(-1)sr(-1) at maximum in May and 0.0003 x 10(-3) km(-1)sr(-1) at minimum in January, October and December.
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