An objective method was developed to detect local cells of the Siberian high (SH) over the Middle East, and mean sea level pressure (SLP) data from the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis dataset were used to specify the centers of local SH cells and associated ridges. The results indicated that approximately 25.8% of winter SH cells influence the Middle East, and this influence diminishes from December to February. Synoptically, the area between the Black and Caspian Seas represents a remote area for sensing the influences of the SH on the Middle East. Although the SH is considered a shallow system, the variability of the effectiveness of the SH throughout the Middle East was estimated from the integration of atmospheric systems at the whole‐atmosphere scale (from the surface to 200 hPa). Further, this study demonstrated that the westward extension of the SH over the Middle East is associated with weak cyclogenesis in the area between the Black and Caspian Seas; that is, the atmospheric systems are favourable for strengthening the upper‐layer ridge in this area. However, the eastward retreat of the SH extension from the Middle East is associated with strong cyclogenesis in the area between the Black and Caspian Seas; that is, the atmospheric systems are unfavourable for strengthening the upper‐layer ridge in this area. This study revealed the importance of the SH in the generation of the pressure gradient over the Arabian Peninsula and the associated development of dust storms and the Red Sea Trough.

中文翻译：

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西伯利亚高脊在中东的变化

开发了一种客观方法来检测中东地区的西伯利亚高压（SH）本地单元，并使用了来自国家环境预测中心/国家大气研究中心再分析数据集的平均海平面压力（SLP）数据来指定局部SH细胞和相关脊的中心。结果表明，大约25.8％的冬季SH细胞影响中东，这种影响从12月到2月逐渐减少。概括地说，黑海和里海之间的区域代表了一个偏远地区，可用来感知上海对中东的影响。尽管SH被认为是浅层系统，通过整个大气层（从地表到200 hPa）大气系统的整合，可以估算出整个中东地区SH有效性的变化。此外，这项研究表明，SH在中东向西延伸与黑海和里海之间的弱环回作用有关。也就是说，大气系统有利于加强该地区的上层脊。然而，从中东向南延伸的SH向东撤退与黑海和里海之间的强回旋作用有关。也就是说，大气系统不利于加强该地区的上层脊。