The vertical motion of air is closely related to the amount of precipitation that falls in a particular region. The Tibetan Plateau and the North Pacific are important determinants of the East Asian climate. We use climate diagnosis and statistical analysis to study the vertical motion of the air over the North Pacific and Tibetan Plateau and the relationship between the vertical motion of air over them and the climate in East Asia. Here we show that there is a downward movement of air over the Tibetan Plateau during the winter, with a maximum velocity of downward movement at 500 hPa, whereas there is an upward movement of air with a maximum velocity of upward movement at 600 hPa during the summer. Precipitation in East Asia has a significant negative correlation (The correlation coefficient exceeds −0.463 and confidence level is greater than 99%) with the vertical motion of air over the Tibetan Plateau and the North Pacific during both the winter and summer. There is also a negative correlation of precipitation in the region south of the Yangtze River with the vertical motion of air over the Tibetan Plateau in winter, whereas the area of negative correlation to the vertical motion of air over the North Pacific in winter is located to the east of the Tibetan Plateau and the Yangtze–Huaihe river basin. The research results provide a climatic framework for the vertical motion of air over both the Tibetan Plateau and the North Pacific.

中文翻译：

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青藏高原和北太平洋大气垂直运动的时间尺度变化和东亚的气候

空气的垂直运动与特定区域内的降水量密切相关。青藏高原和北太平洋是东亚气候的重要决定因素。我们使用气候诊断和统计分析来研究北太平洋和青藏高原上空气的垂直运动以及它们上空的空气垂直运动与东亚气候之间的关系。在这里，我们表明，冬季期间，青藏高原上空空气向下运动，最大向下运动速度为500 hPa，而在冬季，空气向上运动，最大向上运动速度为600 hPa。夏天。东亚的降水具有显着的负相关性（相关系数超过-0。463和置信度大于99％），在冬季和夏季，空气在青藏高原和北太平洋上空垂直运动。在冬季，长江以南地区的降水与空气垂直运动之间也呈负相关，而在冬季，与北太平洋上方的空气垂直运动之间存在负相关的区域为：青藏高原东部和长江淮河流域。研究结果为青藏高原和北太平洋的空气垂直运动提供了一个气候框架。在冬季，长江以南地区的降水与空气垂直运动之间也呈负相关，而在冬季，与北太平洋上方的空气垂直运动之间存在负相关的区域为：青藏高原东部和长江淮河流域。研究结果为青藏高原和北太平洋的空气垂直运动提供了一个气候框架。在冬季，长江以南地区的降水与空气垂直运动之间也呈负相关，而在冬季，与北太平洋上方的空气垂直运动之间存在负相关的区域为：青藏高原东部和长江淮河流域。研究结果为青藏高原和北太平洋的空气垂直运动提供了一个气候框架。