djf 中文意思是什麼
djf
解釋
吉布地法郎-
The precipitation of northern hemisphere has a significant negative trend, lapse rate of precipitation during djf is - 0. 028mm / a. for the southern hemisphere, has n ' t pass the statistical significance. the flood / drought years are pick out in 1948 - 2001 for djf over global, northern and southern hemisphere, six large - scale areas, the results point out has significant decadal change in the flood / drought years of global, nh and sh in djf, during 1940s - 1970s global flood in djf occurred frequently and from 1970s - 1990s global drought in djf occurred frequently
北半球有明顯的降水減少，約為- 0 . 028mm a ，南半球12 - 2月降水表現為極微弱的下降趨勢，且在統計上是不顯著的。劃分出了全球、南北半球、全球6個大尺度區域12 - 2月旱澇年，指出全球及北、南半球12 - 2月的旱澇有明顯的年代際變化。 70年代中期以前是全球洪澇多發期， 80年代到90年代為全球乾旱多發期。 -
Based on global land monthly precipitation dataset prec / l during the period of 1948 - 2001, ncep / ncar reanalyzed monthly mean wind data and global monthly sst grid data edited by british meteorological bureau. the flood / drought and the secular trend variation of precipitation of global, the northern hemisphere ( nh ), the southern hemisphere ( sh ), eurasia, africa, australia, north america, south america and antarctica in december - february ( djf ) are investigated
本文利用1948 - 2001全球陸地月降水資料（ prec l ） ，美國ncep ncar再分析月平均風場資料和高度場資料以及英國氣象局整編的全球逐月海溫格點資料。研究了全球、北、南半球及歐亞、非洲、澳洲、北美、南美和南極大陸6個大尺度區域12 - 2月的降水趨勢變化及旱澇氣候變化。 -
The results indicate that the precipitation of global, nh and sh experienced decadal change : a minus - trend from 1974s global precipitation for djf, regression coefficient is - 0. 017mm / a
結果表明：全球、南、北半球的12 - 2月的陸面降水有明顯的年代際變化，全球12 - 2月降水量從1975年開始的明顯的下降趨勢，回歸系數約為- 0 . 017mm a 。 -
The flood / drought characteristics of northern hemisphere are agreed with ones of the global. there is no obvious correlation between the northern and southern hemispheric flood / drought in djf
北半球旱澇特徵與全球特徵相近，南、北半球12 - 2月的旱澇沒有明顯的聯系。 -
Eurasia, north america, antarctica has significant interdecadal change of the flood / drought during djf. global has a significant contrast of rainfall between flood / drought years. the correlations among six large - scale areas precipitation are analysed
大尺度區域中：歐亞大陸、北美洲、南極大陸旱澇年的分佈有明顯的年代際特徵，並指出全球大部分地區的旱澇年降水量有顯著的差異。
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