active ridge 中文意思是什麼
active ridge
解釋
活動海嶺-
4, the summer rainfall anomaly in northeast china bears close correlation with the atmospheric circulation backgroud. while cold air in middle and high levels of troposphere is active in wet year with the positive anomalies over high - latitude and polar area, the active longwave ridge, the anomalous long - wave ridge in northeast china and inner - mogolia as well as the northward and eastward of the polar vortex, the contrary is in the dry year in northeast china
4東北地區夏季降水異常與大氣環流背景有密切的關系，東北地區夏季多雨年在對流層中、高層冷空氣比較活躍，高緯和極區主要由位勢高度的正距平所控制，貝加爾湖以北的地區長波脊較為活躍，在東北地區和蒙古地區有異常的長波槽發展，極渦位置偏北、偏東；而在東北地區夏季少雨年則容易出現與上述相反的異常環流形式。
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