Chemical and mechanical erosion in the upper Niger basin (Guinea, Mali). Hydrograph separation of four components

被引：6

作者：

Boeglin, JL

Tardy, Y

机构：

[1] CNRS,CTR GEOCHIM SURFACE,F-67084 STRASBOURG,FRANCE

[2] UNIV STRASBOURG 1,INST GEOL,F-67084 STRASBOURG,FRANCE

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DE LA TERRE ET DES PLANETES | 1997年 / 325卷 / 02期

关键词：

groundwater flow; runoff contribution; hydrograph separation; water chemistry; Niger basin;

D O I：

10.1016/S1251-8050(97)83973-0

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A model for hydrograph separation of four components (deep groundwater, superficial groundwater, hypodermic runoff and surface runoff) is proposed, using a dense sampling of river waters from the upper Niger basin at the Bamako station (Mali). The composition of each component is supposed to remain constant, while the four different contributions to the total flow are variable during the hydrological cycle. The flow percentage attributed to each component is calculated point by point, which requires some hypotheses on the concentrations of the selected tracers.

引用

页码：125 / 131

页数：7