In an age of both big data and increasing strain on water resources, sound management decisions often rely numerical models. Numerical models provide a physics-based framework for assimilating making sense information that by itself only provides limited description the hydrologic system. Often, are best option quantifying even intuitively obvious connections between human activities resource i...

First posted March 3, 2022 For additional information, contact: Director, Integrated Modeling and Prediction DivisionWater Mission AreaU.S. Geological Survey12201 Sunrise Valley Dr., MS 411Reston, VA 20192-0002Contact Pubs Warehouse This report documents a new Groundwater Transport (GWT) Model for MODFLOW 6. The GWT simulates three-dimensional transport of single chemical species in fowing grou...

The City ofRostov the Great (Rostov) is one of the oldest cities in the Russian Federation. Many buildings need to be restored due to advanced degradation of the wooden and stone foundations. This degradation and other environmental problems are in large part caused by high groundwater levels, which are in turn directly associated with human activity over the years. Technical analyses were comp...

s and proceedings: Vilhelmsen, T.N., Christensen, S., Testing MODFLOW-LGR for simulating flow around buried Quaternary valleys – synthetic test cases, AGU fall meeting 2009, San Francisco, U.S.A., 14-18 December 2009 Vilhelmsen, T.N., Christensen, S., Test af to versioner af MODFLOW-LGR til simulering af grundvandsstrømninger i områder med begravede dale – syntetisk studie, ATV vintermøde 2010,...

Accurate hydrological simulations are crucial for managing water resources and promoting sustainable agriculture in submerged paddy agricultural watersheds. The SWAT-MODFLOW, which couples the Soil Water Assessment Tool (SWAT) Modular Groundwater Flow (MODFLOW) model, is a widely used tool hydrologic that consider surface groundwater (SW-GW) interactions. However, it falls short of effectively ...

The Juksan weir, installed in the Yeongsan river South Korea from 2010 to 2012, has secured sustainable water resources and helped control flooding. However, low flow velocities due weir have deteriorated quality of water. For natural restoration, gate was opened 2017. In this study, three-dimensional finite difference model Visual MODFLOW used analyze effects opening on stream–aquifer interact...

GSFLOW is a new U.S. Geological Survey model for simulating ground-water/surface-water interactions. GSFLOW couples PRMS (the Precipitation Runoff Modeling System) to MODFLOW (the Modular Ground-Water Model) with modules for simulating flow and storage in unsaturated-zones, lakes, and streams. GSFLOW simulates infiltration, runoff generation, and lateral flow in temporarily saturated material (...