Long-Term Investigation of Aerosols in the Urmia Lake Region in the Middle East by Ground-Based and Satellite Data in 2000–2021

Long-Term Investigation of Aerosols in the Urmia Lake Region in the Middle East by Ground-Based and Satellite Data in 2000–2021

Dried lake beds are some of the largest sources of dust in the world and have caused environmental problems in the surrounding areas in recent decades. In the present work, we studied the monthly and annual occurrence of dust storms at selected weather stations around Urmia Lake in northwestern (NW)...

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Ngā kaituhi matua: Abadi, Abbas Ranjbar Saadat, Hamzeh, Nasim Hossein, Shukurov, Karim, Opp, Christian, Dumka, Umesh Chandra
Hōputu: Tuhinga
Reo:Ingarihi
I whakaputaina: Philipps-Universität Marburg 2023
Ngā marau:
Aqua MODIS
statistical aerosol investigation
CALIPSO
Geografie, Reisen
aerosol optical depth
Urmia Lake
Geography & travel
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Whakarāpopototanga:Dried lake beds are some of the largest sources of dust in the world and have caused environmental problems in the surrounding areas in recent decades. In the present work, we studied the monthly and annual occurrence of dust storms at selected weather stations around Urmia Lake in northwestern (NW) Iran. Furthermore, we investigated the variations in the daily aerosol optical depth (AOD at 550 nm) and the Ångström exponent (at 412/470 nm), as well as the vertical profile of the total aerosol extinction coefficient and AOD at 532 nm, using space-borne MODIS (Moderate Resolution Imaging Spectroradiometer) Aqua and CALIPSO Satellite LiDAR data over the Urmia Lake region (36–39°N, 44–47°E). The monthly variations of AOD550 and AOD532 for the regions 37–39°N and 46–59°E were compared, and it was found that the CALIPSO AOD532 and MODIS AOD532 (reconstructed using the Ångström exponent) were in good agreement. In general, the dust storms during 2000–2021 increased the AOD550 above average around the Urmia Lake. The vertical profile of aerosols showed that the largest contribution to total aerosol loading over the Urmia Lake was from 1.5–3 km, 1.5–4 km, 1.5–5 km, and 1.5–3 km during winter, spring, summer, and autumn seasons, respectively.
Whakaahutanga tūemi:Gefördert durch den Open-Access-Publikationsfonds der UB Marburg.
Whakaahuatanga ōkiko:18 Seiten
DOI:10.3390/rs14153827

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