Enhancing SWAT+ simulation of groundwater flow and groundwater-surface water interactions using MODFLOW routines
作者： Ryan T. Bailey , Seonggyu Park , Katrin Bieger , Jeffrey G. Arnold , Peter M. Allen
DOI: 10.1016/J.ENVSOFT.2020.104660
关键词: Environmental science 、 Groundwater discharge 、 Groundwater recharge 、 Hydrology 、 MODFLOW 、 Water table 、 Groundwater 、 Groundwater flow 、 Baseflow 、 Surface water
摘要: Abstract This paper presents a version of SWAT + that uses MODFLOW to simulate groundwater flow and groundwater-surface interactions within watershed system. The modeling code is applied the 470 km2 Middle Bosque River Watershed (Texas, USA) demonstrate accuracy differences with SWAT+. model tested against field-measured stream discharge, levels fluctuation patterns, runoff, baseflow, recharge, boundary flow, water interactions, evapotranspiration. captures dominant baseflow patterns throughout key table dynamics relation nearby streams. Whereas annual rates lateral percolation are unchanged from stand-alone SWAT + simulation, discharge increase by 50% (37 mm–54 mm). In particular, temporal governed physically-based rise fall near streams, rather than storm-induced recharge pulses as in SWAT + simulation.
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