西北干旱区荒漠戈壁两次极端沙尘事件的对比研究

董元柱, 王天河, 谭睿琦, 王思晨, 焦英姿, 唐靖宜

A comparative study of two extreme dust events in the deserts and gobi regions in the arid regions of northwest China

DONG Yuanzhu, WANG Tianhe, TAN Ruiqi, WANG Sichen, JIAO Yingzi, TANG Jingyi

图5 塔克拉玛干沙漠“3·31”事件和戈壁荒漠“3·14”事件期间CALIPSO观测的532 nm总衰减后向散射系数（左）、532 nm消光系数（中）及气溶胶类型（右）分别沿图4中黑色实线的垂直剖面 （右图色标数字1是未确定的气溶胶，2是清洁海洋气溶胶，3是沙尘气溶胶，4是污染大陆气溶胶/烟雾气溶胶，5是清洁大陆气溶胶，6是污染沙尘气溶胶，7是抬升烟雾气溶胶，8是海洋沙尘气溶胶，9是云）

Fig.5 The vertical profiles of the 532 nm total attenuated backscatter coefficient （the left）， the 532 nm aerosol extinction coefficient （the middle）， and the aerosol types （the right） observed by CALIPSO during the “3·31” dust event period in the Taklimakan Desert and the “3·14” dust event period in the Gobi Desert along the black solid line in fig.4， respectively （For the color bar of the right pictures， the number 1 represents undetermined aerosol， 2 is for clean marine aerosol， 3 is for dust aerosol， 4 is for polluted continental/smoke aerosol， 5 is for clean continental aerosol， 6 is for polluted dust aerosol， 7 is for elevated smoke aerosol， 8 is for marine dust aerosol， and 9 is for cloud）