A Conceptualized Groundwater Flow Model Development for Integration with Surface Hydrology Model

Document Type

Conference Proceeding

Publication Date

1-1-2017

Publication Title

World Environmental and Water Resources Congress 2017: Watershed Management, Irrigation and Drainage, and Water Resources Planning and Management - Selected Papers from the World Environmental and Water Resources Congress 2017

Publisher

American Society of Civil Engineers (ASCE)

First page number:

175

Last page number:

187

Abstract

A groundwater system model was developed and calibrated in the study area of Lehman Creek Watershed, eastern Nevada. The model development aims for integrating the surface hydrologic model-precipitation runoff modeling system (PRMS) model-with the three-dimensional (3D) finite-difference model MODFLOW. A two-layer groundwater model was developed with spatial discretization of 100 x 100 m grid. The water balance was estimated with inflows of gravity drainage and initial streamflow estimated from a calibrated PRMS model, and with outflows of spring discharges, boundary fluxes, and stream base flow. A steady-state model calibration was performed to estimate the hydraulic properties. The modeling results were able to represent the geographic relieves, simulate water balance components, and capture the hydrogeologic features. The preliminary results presented in this study provide insights into the local groundwater flow system and lay groundwork for future study of interactive influences of surface hydrologic variation. © ASCE.

Language

english

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