Identifying atmospheric river events and their paths into Iran
Identifying atmospheric river events and their paths into Iran
复制标题
识别大气河流事件及其进入伊朗的路径
DOI：
10.1007/s00704-020-03148-w
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发表时间：
2020
影响因子：
3.4
通讯作者：
H. Lashkari
中科院分区：
文献类型：
--
作者：
N. Esfandiari;H. Lashkari
大气河流（AR）作为狭窄而密集的水蒸气路径，与周围区域相比，在传输大量大气湿度方面发挥着重要作用。因此，AR对大气水循环和气候条件具有显着影响。由于水资源管理和极端天气影响的优先性，在干旱和半干旱地区更为显着。这项研究确定了进入伊朗的 AR 及其移动路径和影响其决定的天气因素。为此，应用综合水汽输送数据来确定 2007-2018 年（11 月至 4 月）的 AR。总体而言，共识别出 364 个 AR 事件。结果显示，大约52%的AR直接源自亚丁湾和红海。还观察到 AR 从不同的路径进入伊朗。通过按位置对进入路径进行分类并对每条路径进行天气分析后发现，阿拉伯副热带反气旋（ASA）的向西或向东位移以及地中海槽的延伸模式对于确定该地区的AR路径非常重要。此外，约67%的AR分别从南部和西南部进入该国，频率最高的是1月份，其次是3月份。
Atmospheric rivers (ARs), as narrow, dense water vapour paths, play a major role in transferring large volumes of atmospheric humidity compared to their surrounding areas. Accordingly, ARs have significant effects on the atmospheric water cycle and climatic conditions. They are more remarkable in arid and semi-arid regions due to the priority of water resources management and weather extreme effects. This study identified ARs entering Iran as well as their movement paths and synoptic factors affecting their determination. To this end, integrated water vapour transport data was applied to identify ARs for 2007–2018 (November to April). In general, 364 AR events were identified. The results showed that approximately 52% of ARs were directly originated from the Gulf of Aden and the Red Sea. It was also observed that ARs entered Iran from different paths. By classifying entry paths in terms of location and after conducting synoptic analysis for each path, it was found that the westward or eastward displacement of the Arabian subtropical anticyclone (ASA) and along with the extension pattern of Mediterranean trough was highly important in determining AR paths in the region. Moreover, about 67% of ARs entered the country from south and southwest, respectively, and the highest frequency was in January followed by March.
影响因子：
3.8
作者：
Blamey, R. C.;Ramos, A. M.;Reason, C. J. C.
通讯作者：
Reason, C. J. C.