Evaluation of the hydrological components added to an atmospheric land-surface scheme |
| |
| Authors: | H-T Mengelkamp G Kiely K Warrach |
| |
| Institution: | (1) GKSS Research Center, Geesthacht, Germany, DE;(2) University College Cork, Cork, Ireland, IE |
| |
| Abstract: | Summary
Discharge from a small grassland catchment in Ireland is simulated with the atmospheric land-surface scheme SEWAB. Hydrological
processes are parameterized to represent surface runoff and baseflow generation and soil moisture storage changes. Surface
ponding and infiltration are explicitly described in order to account for the rapid response of streamflow to precipitation
events. The annual discharge, the evapotranspiration and individual flood flows are accurately modelled. The simulation of
soil moisture at various depths is close to the observations from time domain reflectometer measurements. An analysis of the
significance of individual hydrological processes for discharge simulation from the small catchment found the ponding process
to be essential for time periods of less than 12 hours. A depth dependent saturation hydraulic conductivity improves the simulations
on all time scales.
Received October 25, 2000/Revised February 16, 2001 |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
