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Wind regime and aeolian sand transport in Khuzestan Sand Sea
Aeolian Research ( IF 3.1 ) Pub Date : 2021-09-09 , DOI: 10.1016/j.aeolia.2021.100746
H.R. Abbasi 1 , C. Opp 2 , M. Groll 2 , A. Gohardoust 1 , H. Rouhipour 1
Affiliation  

The Khuzestan Sand Sea extends from the Wasit and Maysan provinces in Iraq (22%) to the Ilam (10%) and Khuzestan (68%) provinces in Iran. In order to determine wind regimes and sand transport characteristics, hourly wind data records from 21 meteorological stations for the period 2000–2016 were analyzed using aeolian-sediment transport methods. The analysis of the wind energy based on drift potential (DP) revealed rather large spatial variations in the Khuzestan Sand Sea. The Iraqi part of the desert, as well as the southern regions of the Ilam province and the western edge of the Khuzestan province were characterized by particularly high wind energy (DP greater than 400), while towards the central area of the Khuzestan Sand Sea near Ahvaz city a sharp decrease to DP less than 200 was detected. In the southern and southeastern parts of the Khuzestan Province, the wind energy increased again and the DP reached more than 200 vector units. The temporal analysis of the DP showed no considerable temporal trends between 2000 and 2014 in this study area. The dune morphology analysis revealed a bimodal wind regime, which was also supported by the dominance of sand sheets and transverse dunes. Additionally, the local topography has an important influence on the formation of topographic dunes in the southeastern parts of the Sand Sea.



中文翻译:

胡齐斯坦沙海风态与风沙输送

胡齐斯坦沙海从伊拉克的瓦西特省和迈桑省(22%)一直延伸到伊朗的伊拉姆省(10%)和胡齐斯坦省(68%)。为了确定风况和沙子输送特征,使用风积沉积物输送方法分析了 2000-2016 年期间 21 个气象站的每小时风数据记录。基于漂移势 (DP) 的风能分析揭示了胡齐斯坦沙海中相当大的空间变化。沙漠的伊拉克部分,以及伊拉姆省的南部地区和胡齐斯坦省的西部边缘的特点是风能特别高(DP 大于 400),而靠近胡齐斯坦沙海的中心地区检测到阿瓦士市的 DP 急剧下降到 200 以下。在胡齐斯坦省南部和东南部,风能再次增加,DP达到200多个矢量单位。DP 的时间分析表明,2000 年至 2014 年该研究区没有明显的时间趋势。沙丘形态分析揭示了双峰风态,这也得到了沙床和横向沙丘的优势。此外,当地地形对沙海东南部地形沙丘的形成有重要影响。这也得到了沙床和横向沙丘的优势。此外,当地地形对沙海东南部地形沙丘的形成有重要影响。这也得到了沙床和横向沙丘的优势。此外,当地地形对沙海东南部地形沙丘的形成有重要影响。

更新日期:2021-09-10
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