1) Requency of Drought and Flood
旱涝频率
2) flood and drought
旱涝
1.
This paper conducts the computation classification for the spring flood and drought situation in He Zhou by using the spring precipitation data in four weather stations of He Zhou during 1965-2004,and the z index,and the index of regional flood and drought.
利用贺州市四站1965~2004年春季降水资料,运用z指数和区域旱涝指数对贺州地区春季旱涝情况进行计算分类,并对重旱涝典型年份500hPa环流特征量和4月平均环流场展开分析,发现:贺州地区春季极易发生局部旱涝灾情,90年代以来重旱涝年份出现频率明显增大;在重旱年副高强度强,西伸脊点明显偏西,南支槽偏西偏弱,极涡中心偏东,亚洲中高纬高度偏低,在重涝年则相反。
2.
The variabilities of the summertime flood and drought events over the lower reach of the Yangtze River Valley (YRV) are examined in this paper by employing monthly mean observation data from 1958 to 1999.
作者统计分析了 1 95 8～ 1 999年 42年长江中下游地区夏季 5～ 8月旱涝事件的分布特征。
3) drought and flood
旱涝
1.
Regional features of summer drought and flood in Northeast China and corresponding abnormal water-vapor transportation;
东北地区夏季旱涝的区域特征及水汽异常输送
2.
By using monthly averaged NCEP/NCAR reanalysis data of the atmospheric circulation and the data of summer precipitation in 40 meteorological stations in Shandong province from 1961 to 1998,the climate characteristics of precipitation in the summer of Shandong are analyzed,and the atmospheric circulation anomalies of drought and flood have been compared and analyzed.
应用1961～1998年的山东省40个代表站夏季降水资料及NCAR/NCEP再分析月平均资料,分析了山东夏季降水的气候特征,并对旱涝年的大气环流异常进行了合成对比分析。
3.
Based on grade data of drought and flood of Anhui in recent 554 years, variable regular are given by calculation method of departure coefficient, kurtosis coefficient, number of appearance, accumulative anomaly and so on.
基于安徽省近554年的旱涝等级资料,首先利用偏度系数、峰度系数、频次、累积距平等计算公式和方法进行旱涝变化规律的分析,结果表明:安徽省旱涝等级序列具有不对称分布即涝明显多于旱的非正态分布特征,呈现干燥期、湿润期的阶段性变化特征,以旱为主和以涝为主的现象间隔出现。
4) flood/drought
旱涝
1.
Research on climate features of summer s flood/drought in Northwest China;
我国西北地区夏季旱涝气候特征研究
2.
Based on the fact that the predictor and predictand will change when some variateschange ahruptly in the climatic system, a multivariate threshold regression model for sum-mer flood/drought in the Lower ChangJiang valley is developed.
考虑了气候系统中一些变量突变时对预测关系的改变作用，用多元门限回归模型的建模方法建立长江下游地区夏季旱涝趋势预测模型。
3.
Experimental research has been made into short-term climate prediction of flood/drought in spring,monsoon and typhoon seasons and autumn and winter seasons.
利用最优子集、神经网络、EOF-CCA和均生函数4种常用统计方法,对福建春季、前汛期、后汛期和秋冬季进行年度、季度旱涝的短期气候预测试验,采用统一的评分标准评定。
5) drought and waterlogging
旱涝
1.
Characteristic of drought and waterlogging change in Benxi area in recent 40 years and its evaluation;
40年来本溪地区的旱涝变化特征及其评估方法
2.
By using the NCEP/ NCAR reanalysis monthly mean data from 1958 to 1997 and summer precipitation from 69 observation stations of Northeast China, the general circulation anomaly characteristics in drought and waterlogging years of this area have been studied.
利用东北地区均匀分布的６９个测站３５年（１９６１～１９９５年）夏季月平均降水资料和 ＮＣＥＰ／ＮＣＡＲ １９５８～１９９７年月平均再分析资料，对我国东北地区夏季旱涝发生的大气环流异常特征及其差异进行了诊断分析研究。
6) drought/flood
旱涝
1.
Using the drought/flood data from representative stations over the eastern Northwest China from 1470 to 2003 collected by the Chinese Academy of Meteorological Sciences,according to different features of terrain,physiognomy and climate,the eastern Northwest China is divided into three climatic regions.
利用中国气象科学研究院收集、整理的西北地区东部代表站1470~2003年的旱涝等级资料,根据不同的地形地貌特征和气候特征,将西北地区东部分为3个气候区,利用周期分析、coif3小波变换等统计分析方法对3个气候区534年旱涝指数的年代际气候特征及地域之间旱涝变化的差异进行分析。
2.
Based on the data of monthly precipitation, atmospheric current and surface temperature of Pacific from 1951 to 1997, the factors, which influence precipitation and drought/flood in the first rainy season (April-June) in the Pearl River Valley, have been analyzed.
利用统计学方法分析了珠江流域前汛期（４～６月）降水和旱涝的影响因子在此基础上建立了相应的预测方法。
补充资料：《中国近五百年旱涝分布图集》
《中国近五百年旱涝分布图集》
Yearly Charts of Dryness/Wetness in China for the Last 500 years Period
zhongguo Jin wubainian hanlao fenbu tuii《中国近五百年旱涝分布图集》(Yearlr Clu刁禹of刀，记“/Wet~in Chinafor the加t 500 years Per衣以)反映中国近500年早涝分布状况的著作。该书收集了中国历史文献，尤其是巧世纪以来的各地地方志书中有关气候的记载;绘制了中国自1470~1979年历史旱涝分布图共引0幅;1951~1979年实测降水量和降水距平百分率分布图共119幅;以及全国120个站点sro年旱涝等级序列表。 该图集由中央气象局气象科学研究院主持，北京大学、南京大学等全国so多个单位共同完成。它是研究气候变化的珍贵资料，也是气候资源分析、利用的重要参考文献，可供生产建设、科学研究、经济规划等部门参考使用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条