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中东的尘埃和气候相互作用:气溶光学深度和气候变量的时空分析

Hossein Mousavi¹, Davood Moshir Panahi², Zahra Kalantari³

¹Department of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran 15875-4413, Iran.

The Science of the total environment

|April 4, 2024

概括

由于气候和非气候因素,中东地区的尘埃水平正在上升. 降水量的减少和蒸发的增加与更高的气溶光学深度 (AOD) 相对应,需要多方面的尘埃控制策略.

科学领域:

环境科学环境科学
大气科学大气科学
气候科学气候科学

背景情况:

中东面临着不断升级的尘埃水平 (气溶光学深度 - AOD),影响空气质量,健康和生态系统.
干旱和半干旱地区占研究区域的77%,特别脆弱.
主要的尘埃热点包括Rub al-Khali,Ad-Dahna,An-Nafud沙漠和伊拉克南部.

研究的目的:

调查气候和非气候驱动因素与1980-2020年中东地区的AOD之间的相关性.
分析与AOD相关的实际蒸发 (AET),潜在蒸发 (PET) 和降水 (P) 的趋势.
确定尘埃增加的区域模式及其气候和环境联系.

主要方法:

在四十年 (1980-2020年) 的时间内分析了AOD,AET,PET和P数据.
区域趋势分析,重点关注已识别的高尘区域.
布迪科空间分析,以评估蒸发率和干旱度的变化.

主要成果:

在伊拉克,伊朗,也门和沙特阿拉伯观察到AOD的上升趋势.
在欧弗拉底河 - 提格里斯河盆地,伊朗北部和尼罗河地区发现了AET的增加.
在伊拉克北部,叙利亚,伊朗西南部和土耳其南部观察到降水减少 (P),与AOD的上升相关.

结论:

气候和非气候因素的复杂相互作用推动了中东的尘埃事件.
降水减少和蒸发转化增加是导致AOD增加的关键因素.
有效的防尘需要全面的方法,包括土壤/水资源保护,监测,公众意识和区域合作.

关键词:

气溶的光学深度 (AOD)布迪科的空间空间.尘埃尘埃的尘埃,就是我们的尘埃.水气候气候气候气候气候气候中东中东的中东.

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