Analysis of the Winter AOD Trends over Iran from 2000 to 2020 and Associated Meteorological Effects
文献类型：期刊论文
| 作者 | Yousefi, Robabeh; Wang, Fang; Ge, Quansheng; Shaheen, Abdallah3; Kaskaoutis, Dimitris G. |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 15期号:4 |
| ISSN号 | 2072-4292 |
| 关键词 | winter AOD trends MODIS MERRA-2 dust changes meteorology Iran |
| DOI | 10.3390/rs15040905 |
| 文献子类 | Article |
| 英文摘要 | High aerosol levels pose severe air pollution and climate change challenges in Iran. Although regional aerosol optical depth (AOD) trends have been analyzed during the dusty season over Iran, the specific factors that are driving the spatio-temporal variations in winter AOD and the influence of meteorological dynamics on winter AOD trends remain unclear. This study analyzes the long-term AOD trends over Iran in winter during the period 2000-2020 using the updated Modern-Era Retrospective Analysis for Research and Applications version 2 (MERRA-2) and the Moderate Resolution Imaging Spectroradiometer (MODIS) datasets. Our results showed that the winter AOD exhibited a significant upward trend during the period 2000-2010 followed by a significant decrease during the period 2010-2018. We found that the winter AOD trends are important over this arid region due to multiple meteorological mechanisms which also affect the following spring/summer dusty period. Ground-based observations from Aerosol Robotic Network data (AERONET) in the Middle East region display trends comparable to those of both MERRA-2 and MODIS and indicated that aeolian dust and the meteorological dynamics associated with it play a central role in winter AOD changes. Furthermore, this study indicated that a significant downward trend in winter sea level pressure (SLP) during the early period (2000-2010) induced hot and dry winds which originated in the desert regions in Iraq and Arabia and blew toward Iran, reducing relative humidity (RH) and raising the temperature and thus promoting soil drying and dust AOD accumulation. In contrast, a significant increase in winter SLP during the late period (2010-2018) induced cold and wet winds from northwestern regions which increased RH and lowered the temperature, thus reducing dust AOD. This suggests that the changes in AOD over Iran are highly influenced by seasonal meteorological variabilities. These results also highlight the importance of examining wintertime climatic variations and their effects on the dust aerosol changes over the Middle East. |
| WOS关键词 | AEROSOL OPTICAL DEPTH ; DUST EMISSION ; MIDDLE-EAST ; SATELLITE ; AERONET ; MODEL ; CLIMATOLOGY ; VARIABILITY ; INSIGHT ; STORMS |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 出版者 | MDPI |
| WOS记录号 | WOS:000940619900001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/190322]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Kaskaoutis, Dimitris G.] Natl Observ Athens, Inst Environm Res & Sustainable Dev, Athens 15236, Greece 2.Cyprus Inst, Climate & Atmosphere Res Ctr, CY-2121 Nicosia, Cyprus 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100045, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yousefi, Robabeh,Wang, Fang,Ge, Quansheng,et al. Analysis of the Winter AOD Trends over Iran from 2000 to 2020 and Associated Meteorological Effects[J]. REMOTE SENSING,2023,15(4). |
| APA | Yousefi, Robabeh,Wang, Fang,Ge, Quansheng,Shaheen, Abdallah,&Kaskaoutis, Dimitris G..(2023).Analysis of the Winter AOD Trends over Iran from 2000 to 2020 and Associated Meteorological Effects.REMOTE SENSING,15(4). |
| MLA | Yousefi, Robabeh,et al."Analysis of the Winter AOD Trends over Iran from 2000 to 2020 and Associated Meteorological Effects".REMOTE SENSING 15.4(2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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