氣候級值 的英文怎麼說
中文拼音 [qìhòujízhí]
氣候級值
英文
climatic extremes-
Firstly, evidence from depositional pattern suggests that the hsl has experienced an expansion - contraction circle since the late glacial epoch. the expansion and movement of the hsl or desert in early stage were clearly marked by the presence of paleo - aeoline sands. the occurrence of paleosoal characterized the stabilization and contraction of the hsl and also indicated the activity of pedogenesis on the paleo - aeilian sands
通過系列氣候代用指標的分析，首次發現該地區粒度、磁化率指標值在兩個大的峰值之間有多個小的峰谷出現，表明了在大的氣候變化階段次一級的暖濕?乾冷氣候波動，值的進一步做年齡的小尺度高解析度研究。The correlativity between theoretical value and the actual value of soil moisture content in 93. 3 percent of observational stations is distinct. all this shows that calculational methods of zndx is more reason for studing the flood or drought of northwest chine. ( 2 ) index _ z and index _ k ca n ' t objectively remark extent of drought and flood event. both ca n ' t distinguish the difference of some years which have the same precipitation and have different temperature, awc
西北地區10個代表站三種指數值的對比表明， z指數與k指數僅反映西北地區同期的降水，而zndx指數不僅反映了同期降水狀況，且與同期氣溫及前期氣候濕潤度有關。 （ 2 ）通過z 、 k與zndx指數對西北地區旱澇等級的對比研究表明， z指數與k指數對西北地區旱澇等級的確定不具有客觀性。Scientists at the beijing normal university studied the link between climate factors and changes in plants ' net primary productivity ? a term used to evaluate the net reserve energy plants need during growth ? between 1982 and 1999
北京師范大學的科研人員研究了在1982年到1999年期間氣候因素與植物凈初級生產力變化之間的聯系，植物凈初級生產力指的是植物在生長周期中的能量凈儲備值。Based on the climate data from 1961 to 2000 in northwest chine, a new flood / drought indeces - palmer _ z index ( zndx ) is introduced. by analyzing and contrasting k - index, z - index and zndx, demonstrated the rationality of zndx and again determined grades of flood / drought for zndx and regional flood / drought indeces. the modified zndx is recognized to be optimum for studing the flood or drought of northwest chine, acting to the result of comparing annual and season flood / drough grades with those of history
本文利用西北地區1961 2000年月、日氣候資料，引進一種新的旱澇指數方法palmer _ z指數（簡稱zndx ） ，通過與國內現用的z指數值、 k指數值對比分析，及其所含參數計算值與實測值的對比分析，論證了zndx指數的合理性，並對其單站旱澇指數及區域旱澇指數等級進行修訂。分享友人