TOWARDS IDENTIFYING SOURCES OF SUBSURFACE FLOW - A COMPARISON OF COMPONENTS IDENTIFIED BY A PHYSICALLY BASED RUNOFF MODEL AND THOSE DETERMINED BY CHEMICAL MIXING TECHNIQUES

被引:121
作者
ROBSON, A
BEVEN, K
NEAL, C
机构
[1] Institute of Hydrology, Wallingford
[2] Centre for Research on Environmental Systems, Lancaster University, Lancaster
[3] Institute of Hydrology, Wallingford
关键词
HYDROGRAPH SEPARATION; MIXING; TOPMODEL; ACID NEUTRALIZATION CAPACITY; SUBSURFACE FLOW;
D O I
10.1002/hyp.3360060208
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
A physically-based semidistributed model, TOPMODEL, is applied to a 340 hectare spruce forested catchment in mid-Wales. The model is calibrated to runoff and the subsurface flow is divided into components of flow identified by depth of origin. In addition, chemical mixing techniques are used to provide a hydrograph separation between acidic soil waters and well buffered deep waters. The short-term variations in the components of flow identified by these two approaches compare well.
引用
收藏
页码:199 / 214
页数:16
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