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MODFLOW-NWT model used to assess groundwater availability in the Northern Atlantic Coastal Plain aquifer system from Long Island, New York to North Carolina


Authors: John Masterson
Owners: Todd Koenig
Resource type:MODFLOW Model Instance Resource
Created:Mar 30, 2018 at 6:51 p.m.
Last updated: Mar 30, 2018 at 6:59 p.m. by Todd Koenig

Abstract

***USGS TEST ENTRY*** Contact Todd Koenig at tkoenig@usgs.gov for more information.
A three-dimensional, groundwater flow model was developed with the numerical code MODFLOW-NWT to represent changes in groundwater pumping and aquifer recharge in the Northern Atlantic Coastal Plain aquifer system from Long Island, New York to North Carolina. The model was constructed using existing hydrogeologic and geospatial information to represent the aquifer system geometry, boundaries, and hydraulic properties of the 19 separate regional aquifers and confining units within the aquifer system. The model was calibrated using an inverse modeling parameter-estimation (PEST) technique to conditions from 1986 to 2008, the period for which data are most complete and reliable. The simulation period for this analysis spanned from predevelopment to future conditions, from 1900 to 2058. The model was used to advance the understanding of groundwater budgets and components including recharge, discharge, and aquifer storage for the entire system and for each of the statewide systems; compute historical and recent system response and project future system response to development at a scale relevant to basinwide water-management decisions; and evaluate options for hydrologic monitoring of system changes. The report ‘Documentation of a groundwater flow model developed to assess groundwater availability in the Northern Atlantic Coastal Plain aquifer system from Long Island, New York, to North Carolina: U.S. Geological Survey Scientific Investigations Report 2016–5076' (https://dx.doi.org/10.3133/sir20165076) documents the model design and calibration, as well as several simulations to test model construction assumptions. The report 'Assessment of groundwater availability in the Northern Atlantic Coastal Plain aquifer system from Long Island, New York, to North Carolina: U.S. Geological Survey Professional Paper 1829' (https://dx.doi.org/10.3133/pp1829) documents water-availability simulations and the resulting analysis and discussion. This USGS data release contains all of the input and output files for the simulations described in the associated reports (https://dx.doi.org/10.3133/sir20165076) and (https://dx.doi.org/10.3133/pp1829). This data release also includes (1) MODFLOW-NWT source code, (2) the PEST files and source code used for model calibration, and (3) the ZONEBUDGET input files and source code used for the groundwater availability analysis.

Subject Keywords

nacp,upper chesapeake,new jersey groundwater,groundwater availability,groundwater model,north carolina,maryland,aquia usgsgroundwatermodel,modflow-nwt,delmarva inlandwaters,groundwater depletion,northern atlantic coastal,virginia,magothy,aquifer storage,delaware potomac-patuxent,matawan,lower chesapeake,potomac-patapsco,long island,piney point,monmouth-mount laurel

How to cite

Masterson, J. (2018). MODFLOW-NWT model used to assess groundwater availability in the Northern Atlantic Coastal Plain aquifer system from Long Island, New York to North Carolina, HydroShare, http://www.hydroshare.org/resource/d1092d2a11ae43df8fd10abc1c2a2695

No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

 https://catalog.data.gov/dataset/modflow-nwt-model-used-to-assess-groundwater-availability-in-the-northern-atlantic-coastal-plai

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  • Sharing status:

    • Public Resource  Public
    • Sharable Resource  Shareable

    Coverage

    Spatial:

     Coordinate System/Geographic Projection:  WGS 84 EPSG:4326
     Coordinate Units:  Decimal degrees
    North Latitude
    42.5523°
    East Longitude
    -73.4841°
    South Latitude
    34.6700°
    West Longitude
    -79.3624°

    Content

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    Authors

    The people or organizations that created the intellectual content of the resource.

    Name Organization Address Phone Author Identifiers
    John Masterson US Geological Survey
    Model Output
    Includes output files? No

    Executed By
    Name Unspecified

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