The formation of the Arctic cell associated with the two-wave middle-high latitude circulation, which is a major atmospheric circulation common to the three-cell and four-cell mean meridional circulations in the Northern Hemisphere, is analyzed using a long period of reanalysis data. In the context of the two-wave middle-high latitude circulation, when the high near the Arctic region from 120°E to 80°W (AH120E80W) weakens and withdraws eastward and the low near the Arctic region from 80°W to 120°E (AL80W120E) strengthens and expands northeastward, the Arctic tends to be controlled by obvious low pressure and associated upward motion, leading to the formation of the Arctic cell. The eastward withdrawal of the AH120E80W is attributed to an eastward retreat of the North Pacific Low, because it promotes the strong anticyclonic wind shear associated with the maintenance of the AH120E80W to migrate eastward. The eastward retreat of the North Pacific Low is induced by the decrease in the width of the East Asian Trough, which results from the response of the high terrain in Central Asia to the weakening of middle-latitude westerly winds caused by a northward shift of the Azores High. On the other hand, the eastward withdrawal of the AH120E80W results in the decay of the Arctic high, causing the winds near the Arctic to change from easterly to westerly. At the same time, the northward shift of the Azores High promotes the strong Icelandic Low to expand poleward. The combination of the Arctic westerly winds and the poleward expansion of the strong Icelandic Low leads to the northeastward expansion of the AL80W120E.

使用长时间的重新分析来分析与北半球三单元和四单元平均子午环流共同存在的主要波大气环流-两波中高纬度环流相关的北极单元的形成。数据。在两波中高纬度环流的背景下，当北极地区从120°E到80°W（AH120E80W）附近的高点减弱并向东撤回时，北极地区从80°W到120°W的低点撤回。 E（AL80W120E）向东北方向加强和扩展，北极趋于受到明显的低压和相关的向上运动的控制，从而导致北极细胞的形成。AH120E80W的向东撤离归因于北太平洋低点的向后撤退，因为它促进了与AH120E80W的维护相关的强劲的抗气旋风切变，向东迁移。东亚海槽宽度的减小是北太平洋低端向东退缩的原因，这是中亚高地对北纬低纬向西风所减弱的响应。亚速尔群岛高。另一方面，AH120E80W的向东撤出导致北极高压的衰减，导致北极附近的风从东风向西风。同时，亚速尔群岛高位的北移促使强冰岛低位向极地扩展。北极的西风和强冰岛低压的极向扩张相结合，导致AL80W120E向东北扩张。