準周日變化 的英文怎麼說
中文拼音 [zhǔnzhōurìbiànhuà]
準周日變化
英文
quasi-diurnal variation-
The precipitation character of the middle part of viet nam and its relation to the atmospheric circle. the autumn precipitation of the middle part of viet nam has obvious variations in inter - annual and inter - decade scale with clearly quasi 6a, 10a, 15a period ; in heavy rainfall years, there are a positive anomaly over the north - west pacific and a negative anomaly over japan ; while in deficient rainfall years, the anomaly distribution is on the contrary ; 4. the precipitation character of the south part of viet nam and its relation to the atmospheric circle. the research finds that the rainfall of the south part of vietnam usually concentrates in the autumn every year and a clear difference of atmosphere condition exists between that of flood and drought years
越南中部降水變化特徵及其與大氣環流和海溫的關系越南中部秋季降水具有明顯的年際、年代際變化特徵，具有明顯的準6a 、 10a 、 15a左右的周期；越南中部多雨年， 500hpa高度距平場在熱帶西北太平洋為正距平，日本附近上空為負距平；而少雨年則相反；越南中部多雨年，熱帶中東太平洋海溫異常偏高，西太平洋海溫異常偏低；少雨年則相反；越南中部多雨年，登陸越南的臺風頻數偏多；而少雨年則相反。This paper assesses and analyses disaster degree of flood - waterlogging disaster by use of three - factor influence assessment method. it establishes the synthetic disaster index model and analyzes the in fluence degree of different disaster factors on synthetic disaster condition by use of the method of continuous substitution. the study results show as follows. the variation of disaster degree has the features of quasi - period and of development by stages ; the factors of flood disaster condition are the main influence factors on variation of synthetic disaster condition ; the influence direction of different factors are not all the same, and the factors that enlarge disaster condition show the new characteristics of flood - waterlogging disaster ; because the waterlogging disaster is serious da ybyday, the control of waterlogging must be strengthened
運用三因子聯立評估法，評定了洞庭湖區洪災，澇災和洪澇災的災度，進行了相應的分析;構建了洪澇災情指數，並運用聯環替代法對各災情因素的影響進行了分析.分析得出:洞庭湖區洪澇災度具有階段性和準周期性等特徵;洪災災情因素是綜合災情變化的主導影響因素;各災情因素影響方向不完全一致，其中起放大作用的因素反映出洪澇災害的新特點;澇災日趨嚴重，應加強澇災治理
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