摘要
为了计算珠江流域入海径流的线源,引入水文数字高程模型(H-DEM)。利用观测的降水和流域流量订正模型参数,改造后的模型模拟结果与站点资料对比,能够基本再现季节变化和年变化,这表明改造后的H-DEM可以应用于亚热带地区。采用改造后的模型对珠江流域入海径流进行模拟研究,结果显示线源和点源都有明显的线性趋势变化和年代际变化特征。
To calculate the line source of runoff in the Zhujiang River drainage area, a hydrological digital elevation model （H-DEM） was introduced. With modified parameters of observed rainfall and basin runoff, the improved H-DEM could well reproduce the seasonal and annual variations in comparison to the observed data. The improved H-DEM can be used in the subtropics. The simulations on freshwater discharged into the South China Zhujiang River basin by the improved model show significant interannual and interdecadal variations point and line sources Sea in the both in the
出处
《海洋科学》
CAS
CSCD
北大核心
2012年第9期108-113,共6页
Marine Sciences
基金
广东省科技部计划项目(2007A032600002)
关键词
数字高程模型
径流
点源
线源
珠江流域
digital elevation model
runoff
point source
line source
the Zhujiang River basin
