2) combat a drought and drain waterlogged fields
抗旱排涝
3) resist the drought and water logging
抗旱、涝能力
4) 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。
5) 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。
6) 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。
补充资料：涝涝
1.犹落落。稀疏的样子。
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