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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Heavy Snowfall in Kanto and on the Pacific Ocean Side of Northern Japan Associated with Western Pacific Blocking
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Heavy Snowfall in Kanto and on the Pacific Ocean Side of Northern Japan Associated with Western Pacific Blocking

机译：关东和日本北部太平洋一侧的大雪与西太平洋封锁相关

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References(12) Cited-By(1) Supplementary materials(1) The influence of large-scale atmospheric blocking over the northwestern Pacific on heavy snowfall events in the Kanto area and on the Pacific Ocean side of northern Japan (PNJ) within the time scale of ～10 days was examined through blocking case studies. The past 14 blocking cases over the Pacific, including the blocking during early- to mid-February 2014 that influenced a record-breaking snowfall over the Kanto area, were analyzed using a long-term reanalysis dataset and local meteorological observation station data. Results reveal that blocking over the Pacific causes large precipitation over the Kanto area and the PNJ by shifting cyclone (storm) tracks towards the east coast of Japan from their usual eastward course across the mid-Pacific via the south coast of Japan. Excessive passing of cyclones caused large precipitation in the Kanto area and snowfall in the PNJ. In the blocking cases with heavy snowfall events in the Kanto area, a strong cold-air inflow over Japan also existed in the lower troposphere originating from east Siberia, which initiated synoptic ground cold-air environments in the Kanto area.
机译：参考文献（12）被引用者（1）补充材料（1）西北太平洋上大规模的大气阻塞对这段时间内关东地区和日本北部（PNJ）太平洋一侧的降雪事件的影响通过封闭案例研究检查了约10天的规模。使用长期再分析数据集和当地气象观测站数据分析了过去14次太平洋阻塞事件，包括2014年2月上中旬造成的关东降雪量破纪录的阻塞事件。结果表明，太平洋上空的阻塞会通过将飓风（风暴）轨道从通常的东行路线转移到日本东海岸，横跨太平洋中部，从而在关东地区和PNJ上造成大量降水。旋风的过度通过导致关东地区大量降雨，PNJ降雪。在关东地区发生大雪事件的阻塞情况下，源自西伯利亚东部的对流层低层也存在大量的日本冷空气流入，这引发了关东地区天气的地面冷空气环境。

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