利用NCAR公用陆面模式CLM3(Community Land Model3)模拟1979—2003年的土壤蒸发量和植被蒸腾量,分析了中国区域水资源(降水减去地面蒸发和植被蒸散)的气候特征及变化特征。全果水资源分布从东到西、从南到北依次递减,这与全国多年降水...利用NCAR公用陆面模式CLM3(Community Land Model3)模拟1979—2003年的土壤蒸发量和植被蒸腾量,分析了中国区域水资源(降水减去地面蒸发和植被蒸散)的气候特征及变化特征。全果水资源分布从东到西、从南到北依次递减,这与全国多年降水分布一致,其中长江以南地区是水资源丰富区,西北地区尤其是新疆地区是水资源匮乏区。从水资源线性变化趋势来看,长江以北大部分地区水资源呈减少趋势,特别是四川盆地和东北地区,变干趋势显著,水资源减少速率为10～15mm/10a;长江以南地区年水资源增加,增加中心在两广地区,水资源增加速率达20～30mm/10a。展开更多
Using ground water vapor pressure and precipitation data at four times of one day during 1985- 2014 in each county（ city） of Anyang,precipitable water at each station was calculated,and temporal-spatial distribution...Using ground water vapor pressure and precipitation data at four times of one day during 1985- 2014 in each county（ city） of Anyang,precipitable water at each station was calculated,and temporal-spatial distribution of atmospheric maximum precipitable water and its change trend over the years in the city were analyzed. Results showed that atmospheric maximum precipitable water in Anyang City had the characteristics of summer far more than winter,autumn slightly higher than spring,west and south more,and east and north less,and presented the increasing trend year by year. We further analyzed the characteristic of monthly rainfall enhancement potential in each county,and mean in whole year was 80%. In spring and winter,rainfall enhancement potential in the west was bigger than east,while rainfall enhancement potential in the east was bigger than west in summer and autumn. The research provides reference basis for rationally carrying out artificial rainfall work,which could effectively ease uneven temporal-spatial distribution problem of water resource in Anyang City.展开更多
文摘利用NCAR公用陆面模式CLM3(Community Land Model3)模拟1979—2003年的土壤蒸发量和植被蒸腾量,分析了中国区域水资源(降水减去地面蒸发和植被蒸散)的气候特征及变化特征。全果水资源分布从东到西、从南到北依次递减,这与全国多年降水分布一致,其中长江以南地区是水资源丰富区,西北地区尤其是新疆地区是水资源匮乏区。从水资源线性变化趋势来看,长江以北大部分地区水资源呈减少趋势,特别是四川盆地和东北地区,变干趋势显著,水资源减少速率为10～15mm/10a;长江以南地区年水资源增加,增加中心在两广地区,水资源增加速率达20～30mm/10a。
文摘Using ground water vapor pressure and precipitation data at four times of one day during 1985- 2014 in each county（ city） of Anyang,precipitable water at each station was calculated,and temporal-spatial distribution of atmospheric maximum precipitable water and its change trend over the years in the city were analyzed. Results showed that atmospheric maximum precipitable water in Anyang City had the characteristics of summer far more than winter,autumn slightly higher than spring,west and south more,and east and north less,and presented the increasing trend year by year. We further analyzed the characteristic of monthly rainfall enhancement potential in each county,and mean in whole year was 80%. In spring and winter,rainfall enhancement potential in the west was bigger than east,while rainfall enhancement potential in the east was bigger than west in summer and autumn. The research provides reference basis for rationally carrying out artificial rainfall work,which could effectively ease uneven temporal-spatial distribution problem of water resource in Anyang City.
