Abstract
Understanding the impact of various weather systems on surface wind speed (SWS) holds immense importance in enhancing the efficiency of wind power generation. Among the many systems that affect regional weather patterns, atmospheric blocking stands out as a key influencer. Here, we explored the influence of winter blocking in Eurasia on SWS changes over China. We found that the majority of blockings over Eurasia occurred around the Okhotsk Sea and Europe and that the blockings that occurred at different locations significantly influenced regional SWS changes. The blockings that occurred in western Russia and eastern Okhotsk consistently influenced most of China, increasing the SWS by 0.2–0.5 m/s and decreasing it by −0.4 to −0.2 m/s, respectively. The blocking that occurred over Russia also generally increased the SWS, and the areas with elevated SWS were mainly concentrated on the Tibetan Plateau and southeastern China. The influence of other blockings on SWS showed significant regional differences. Blockings influence SWS mainly through the weather conditions they control, whereas the intensity and duration of blockings have negligible effects on SWS variations.
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