semi-annual variation 中文意思是什麼

semi-annual variation 解釋
半年變化
  • semi : n. 1. 〈口語〉=semitrailer. 2. 〈英俗〉半獨立式住宅。
  • annual : adj. 1. 每年的;年度的;一年(一次)的。2. (植物)一年一生的,一季生的。n. 1. 一年生[一季生]植物。2. 年刊,年報,年鑒。adv. -ly 年年,每年。
  • variation : n 1 變化,變動。2 變量,變度,偏差。3 【語言】語尾變化;變體,異體;【數學】變分,協變;順列;【...
  1. Based on the ncep / ncar reanalysis products, the sea ice concentration data and the observation rainfall data in china, the seasonal, intraseasonal and interannual variations of the atmospheric circulation in the southern hemisphere ( sh ) are systematically analyzed together with their influences on east asian summer monsoon ( easm ). the major conclusions are summarized as follows : ( 1 ) in the lower level of the troposphere, the semi - annual oscillation ( sao ) is most active along 40 s and 65 s in the extratropics of the sh. over these latitudes, the variance percentages of sao exceed 70 %, and the anti - phase variation of the sea level pressure ( slp ) between the two latitudes is primarily caused by their sao components

    利用ncep ncar再分析資料、南半球海冰密度資料及中國臺站降水資料,本文系統分析了南半球大氣環流的季節、季節內和年際變化特徵及其對東亞夏季風的影響,主要結論歸納如下: ( 1 )對南半球熱帶外大氣環流而言, 40 s和65 s是低層大氣準半年振蕩最為顯著的兩個緯帶,在這兩個緯帶上,半年波的貢獻都超過了70 ,二者季節變化的反位相主要體現為半年波分量的反位相。
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