中国西北地区降水总体偏少，但没有明显的变化趋势。
For the west of Northwest China, analysis suggests that precipitation decreased a little, but with no obvious variation trend.
我国西北地区降水稀少，蒸发强烈，水资源贫乏，是矿产资源富饶的缺水贫困区。
The arid northwest China is an undeveloped area in economy, being rich in mineral resources but shortage in water resources due to sparse rainfall and intense evaporation.
结果表明：近五十年来， 中国西北地区降水以强降水为主，较强以上强度降水占总降水日数的5%， 但其降水量占总降水量75%；
In recent 50 years in Northwest China, the total rainfall is mainly contributed by the stronger rain, which contributes 75% rainfall in 5% rainfall days;
据中央气象台6日预报，7日起，西北地区东南部、华北南部、江汉地区、黄淮、江淮等地将有一次降水过程，一般为小雨，局部有中雨。
Northwest China, North China, Jianghan, and the Huanghuai and Jianghuai plains will see light rain from Saturday, with moderate rain in some areas, the National Meteorological Centre forecast Friday.
用西北地区140个气象站1971～2000年的春季降水、蒸发资料，计算了一种K干旱指数，并制定了干旱标准，分析了西北春季干旱的气候特征。
A kind of K drought index and its criterion are made by using spring precipitation and evaporation data of 140 stations in Northwest China from 1971-2000.
结果表明：西北地区东部区域性短时强降水事件的天气型有明显的季节性特点和区域性特征。
The results show that the regional short-time heavy rainfall events in the east of Northwest China weather type have obvious seasonal characteristics and regional features.
从空间上看，海温对降水的影响存在遥相关关系，其贡献在西北地区大于东部地区。
From the space point of views, there is teleconnection relationship between them and its contribution which is greater in Northwest China than that in East China.
运用相关分析方法研究了东亚冬、夏季风对中国西北地区气温和降水的影响。结果表明，东亚季风对西北地区干旱形成的影响是显著的。
Correlationanalysis method is used to investigate the impact of the East-Asian winter monsoon and summer monsoon impact on the temperature and precipitation of Northwest China.
我国西北地区中、西部的夏季降水与春、夏季比湿及水汽通量相关 的分析，揭示这些地区 的水汽仍主要来自于北大西洋、北冰洋 的西风输送。
The correlation of rainfall of the mid-west northwest in summer and water vapor shows the rainfall comes from the westerly vapor transport of the Atlantic Ocean and the Arctic Ocean .
陈冬冬，戴永久。 2009a。 近五十年中国西北地区夏季降水场变化特征及影响因素分析[J]。 大气科学，33（6）：1247-1258。
Chen Dongdong, Dai Yongjiu. 2009a. Characteristics and analysis of typical anomalous summer rainfall patterns in Northwest China over the last 50 years[J]. Chinese J Atmos Sci, 33(6):1247-1258.
陈冬冬，戴永久。 2009a。 近五十年中国西北地区夏季降水场变化特征及影响因素分析[J]。 大气科学，33（6）：1247-1258。
Chen Dongdong, Dai Yongjiu. 2009a. Characteristics and analysis of typical anomalous summer rainfall patterns in Northwest China over the last 50 years[J]. Chinese J Atmos Sci, 33(6):1247-1258.
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