TY - JOUR T1 - Assessment dust events over the Persian Gulf and the Oman Sea using measurements of CALIOP space lidar TT - ارزیابی رویدادهای غباری بر فراز خلیج فارس و دریای عمان با استفاده از اندازه‌گیری-های لیدار فضایی CALIOP JF - opsi JO - opsi VL - 24 IS - 0 UR - http://opsi.ir/article-1-1601-en.html Y1 - 2018 SP - 489 EP - 492 KW - aerosol KW - atmospheric optics KW - backscattering KW - lidar KW - dust. N2 - The Persian Gulf and the Oman Sea as a large water region are mostly influenced by the surrounding dust sources. In this study some parameters by using analysis of CALIOP lidar measurements in order to survey dust storms over this region are used. Main sources of dust around this wide region are the Tigris and Euphrates Basin, the Arabian Peninsula, Afghanistan and Pakistan Basin and even Thar desert in Indian Subcontinent as well as Hamoun lake as major sources of dust in Sistan Basin. The dataset includes columnar averaged particulate depolarization ratio (PDR), column integrated attenuated backscatter (IAB) and column aerosol optical depth (AOD) over studied zone during June 2006 to December 2015. Monthly mean AOD reveals that high aerosol loading arise over Oman and Arabian Seas during May to September which is mostly attributed to enhanced dust storms originated from the Sistan Basin. Variations of IAB are also interpreted as effect of the seasonal drying of the Hamoun lake and northerly Levar wind on the Oman and Arabian Seas during June to September. In this survey wind pattern to track the air masses has been extracted with NCEP/NCAR reanalysis. M3 ER -