MODFLOW-NWT model with SWI2 used to evaluate the water-table response to sea-level rise and change in recharge, Assateague Island, Maryland and Virginia

A three-dimensional groundwater flow model, MODFLOW-NWT with the SWI2 module, was developed to provide a better understanding of the fresh groundwater system of Assateague Island, Maryland and Virginia. Groundwater flow on Assateague Island was simulated to evaluate the effects of sea-level rise and changes in recharge on the depth to freshwater below the land surface, changes in freshwater discharge, and the depth of the freshwater/saltwater interface. The model was calibrated to average 2014-15 hydrologic conditions and vegetation. The model also simulated the movement of the freshwater- seawater interface for three sea-level rise scenarios.This USGS data release contains all of the input and output files for the simulations described in the associated model documentation report (https://doi.org/10.3133/sir20205104).

Data and Resources

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modified 20210712
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publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
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Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
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  • amerigeo
  • amerigeoss
  • assateague-island
  • chincoteague-bay
  • ckan
  • environment
  • geo
  • geoscientificinformation
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  • groundwater
  • groundwater-model
  • inlandwaters
  • maryland
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  • usgsgroundwatermodel
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maintainer MD-DE-DC Water Science Center Chief
maintainer_email bjflemin@usgs.gov
metadata_created 2025-11-22T19:07:52.161401
metadata_modified 2025-11-22T19:07:52.161405
notes A three-dimensional groundwater flow model, MODFLOW-NWT with the SWI2 module, was developed to provide a better understanding of the fresh groundwater system of Assateague Island, Maryland and Virginia. Groundwater flow on Assateague Island was simulated to evaluate the effects of sea-level rise and changes in recharge on the depth to freshwater below the land surface, changes in freshwater discharge, and the depth of the freshwater/saltwater interface. The model was calibrated to average 2014-15 hydrologic conditions and vegetation. The model also simulated the movement of the freshwater- seawater interface for three sea-level rise scenarios.This USGS data release contains all of the input and output files for the simulations described in the associated model documentation report (https://doi.org/10.3133/sir20205104).
num_resources 2
num_tags 24
title MODFLOW-NWT model with SWI2 used to evaluate the water-table response to sea-level rise and change in recharge, Assateague Island, Maryland and Virginia