MODFLOW-2005 and MODPATH6 models used to simulate groundwater flow and transport and base-flow age in two tributaries to the Upper Chester River, Maryland

A steady state three-dimensional groundwater flow (MODFLOW-2005) and advective transport (MODPATH6) model was developed to examine subsurface travel times to wells and receiving streams in two subcatchments contributing to the Upper Chester River, Maryland. The model was calibrated to conditions from 1990 to 2005, the period for which groundwater levels, stream discharge measurements, and atmospheric tracer measurements were jointly available. Six calibrated model scenarios were generated and paired with First Order Second Moment (FOSM) linear uncertainty analysis tools to evaluate (i) the uncertainty of base-flow age estimates as well as (ii) the worth of future data collection. The development of the model input and output files included in this data release are documented in the Journal of Hydrology article (https://doi.org/10.1016/j.jhydrol.2018.02.006).

Data and Resources

Field Value
accessLevel public
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datagov_dedupe_retained 20220725164314
identifier USGS:acd82fec-a6b3-4917-b5e5-c8bc2cb28514
metadata_type geospatial
modified 20201117
old-spatial {"type": "Polygon", "coordinates": [[[-76.01677, 39.25341], [-76.01677, 39.33294], [ -75.89283, 39.33294], [ -75.89283, 39.25341], [-76.01677, 39.25341]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 908d2cdf86b19bc5210e2c7cdbfbcf81ee558a22
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spatial {"type": "Polygon", "coordinates": [[[-76.01677, 39.25341], [-76.01677, 39.33294], [ -75.89283, 39.33294], [ -75.89283, 39.25341], [-76.01677, 39.25341]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • aquia-aquifer
  • chester-river
  • ckan
  • environment
  • geo
  • geoscientificinformation
  • geoss
  • groundwater
  • groundwater-model
  • inlandwaters
  • kent-county
  • maryland
  • modflow2005
  • modpath6
  • national
  • north-america
  • transport-model
  • united-states
  • usgs-acd82fec-a6b3-4917-b5e5-c8bc2cb28514
  • usgsgroundwatermodel
isopen False
license_id notspecified
license_title License not specified
maintainer Wesley O. Zell
maintainer_email wzell@usgs.gov
metadata_created 2025-11-21T09:50:29.324210
metadata_modified 2025-11-21T09:50:29.324214
notes A steady state three-dimensional groundwater flow (MODFLOW-2005) and advective transport (MODPATH6) model was developed to examine subsurface travel times to wells and receiving streams in two subcatchments contributing to the Upper Chester River, Maryland. The model was calibrated to conditions from 1990 to 2005, the period for which groundwater levels, stream discharge measurements, and atmospheric tracer measurements were jointly available. Six calibrated model scenarios were generated and paired with First Order Second Moment (FOSM) linear uncertainty analysis tools to evaluate (i) the uncertainty of base-flow age estimates as well as (ii) the worth of future data collection. The development of the model input and output files included in this data release are documented in the Journal of Hydrology article (https://doi.org/10.1016/j.jhydrol.2018.02.006).
num_resources 2
num_tags 22
title MODFLOW-2005 and MODPATH6 models used to simulate groundwater flow and transport and base-flow age in two tributaries to the Upper Chester River, Maryland