沙漠与绿洲气象2024，Vol.18Issue(1)：38-49,12.DOI:10.12057/j.issn.1002-0799.2024.01.005
塔克拉玛干沙漠与撒哈拉沙漠沙尘气溶胶光学特性对比研究
Comparative Study on Optical Characteristics of Dust Aerosols in the Taklimakan Desert and the Sahara Desert
摘要
Abstract
Based on CALIPSO and MODIS active and passive satellite remote sensing data from 2007 to 2021,this study explores and compares the spatiotemporal distribution characteristics of aerosols in the Taklimakan Desert(TD)and the Sahara Desert(SD).The results show that:(1)The contribution rate of desert dust aerosols to total aerosols in the two major deserts is the highest,and the relative singularity of aerosol type seasonal changes reflects the significant impact of desert dust emissions on total aerosol composition in the TD and SD;(2)The peak of AOD in the TD occurs in spring(spring＞summer＞autumn＞winter),while the peak of AOD in the SD occurs in summer(summer＞spring＞autumn＞winter);(3)The total aerosol elevation in the SD is similar to that in the TD,but the extinction coefficient(EC)in the near surface layer is significantly lower than that in the TD;The average extinction coefficient of the TD is greater than that of the SD in all seasons,so the AOD of sand and dust aerosols in the TD is greater than that in the SD;Compared to desert dust aerosols,neither the TD nor the SD show significant pollution,dust,and smoke activity.The above research results reveal the observational facts of the optical characteristics of dust aerosols in the two major desert source areas and the possibility of using the spatiotemporal variation characteristics of atmospheric aerosols to reflect regional climate change.关键词
塔克拉玛干沙漠/撒哈拉沙漠/沙尘气溶胶/光学特性/CALIPSO/MODISKey words
Taklimakan Desert/Sahara Desert/dust aerosol/optical characteristics/CALIPSO/MODIS分类
天文与地球科学引用本文复制引用
潘红林,马诺,王敏,王敏仲..塔克拉玛干沙漠与撒哈拉沙漠沙尘气溶胶光学特性对比研究[J].沙漠与绿洲气象,2024,18(1):38-49,12.基金项目
新疆维吾尔自治区自然科学基金资助项目(2022D01B74) （2022D01B74）
国家自然科学基金青年基金项目(42005074) （42005074）
科技创新团队(天山创新团队)项目(2022TSYCTD0007) （天山创新团队）
中央级公益性科研院所基本科研业务费项目(IDM2020003) （IDM2020003）
