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
Dates
Release Date
2021-01-01
Start Date
2014-10-01
End Date
2015-09-30
Publication Date
2023-09-15
Citation
Fleming, B.J. and Raffensperger, J.P., 2021, 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: U.S. Geological Survey data release, https://doi.org/10.5066/P9AJOLRK.
Summary
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 [...]
Summary
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).
MODFLOW-NWT with the SWI2 module, was used to evaluate changes in groundwater-level altitudes that may result from a rise in sea level in the vicinity of Assateague Island in Maryland and Virginia. The model focuses on the unconfined barrier island aquifer system in the Atlantic Coastal Plain of Maryland and Virginia in the vicinity of the Assateague Island National Seashore. The development of the model input and output files included in this data release are documented in the U.S. Geological Survey Scientific Investigations Report 2020-5104 (https://doi.org/10.3133/sir20205104)
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