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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 81-84 |
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Ghomashi F, Khalesifard H R. Assessment of dust layer height and investigation of atmospheric aerosol types over the Urmia Lake using CALIOP space-borne Lidar. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :81-84
URL: http://opsi.ir/article-1-1982-en.html
URL: http://opsi.ir/article-1-1982-en.html
1- Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan
Abstract: (1627 Views)
The Urmia Lake has faced a severe drought scenario in the last two decades. The dried parts of the lake bed can act as a source of salt particles that contaminate the lake's atmosphere and surrounding areas. In this study, aerosol layer optical depth, aerosol layer height and particulate depolarization ratio were selected from CALIOP Lidar data to evaluate dust layer height and investigate the type of atmospheric aerosols over the Urmia Lake. The aerosol layer height values show that dust layers over the atmosphere of Urmia Lake are commonly observed at 3.1 km. PDR values indicate that the type of particles in the lake atmosphere include dust transported from outside sources, air pollutants originated from urban-industrial pollution, and salt particles originated from the dried lake bed. The results also show that Urmia Lake is predominantly active during the dry months of the year i.e. June to October and the mean PDR value of these salts particles is 0.16.
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