Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

MODFLOW-2000 model used to illustrate the differences in flow paths and travel times when three-dimensional kriging is used to estimate the hydraulic conductivity distribution as compared to manual determinations of hydraulic conductivity distribution

Metadata Updated: July 6, 2024

A three-dimensional (3D) groundwater flow model of the glaciated sediments around Elkhart, Indiana was constructed as part of the U.S. Geological Survey Groundwater Resources Program using lithologic records from water well logs. Texture-based hydraulic conductivities were assigned to vertical intervals along each lithology record. A three-dimensional kriging program read texture-based hydraulic conductivity values for each vertical interval and calculated a continuous 3D distribution of hydraulic conductivity for the entire model domain. The model was calibrated to hydrologic conditions in May and June of 1979. The model was used to simulate groundwater flow paths from points of recharge to points of discharge. These flow paths were compared to flow paths generated by an existing model (https://pubs.usgs.gov/wri/1997/4204/report.pdf) that was constructed using a manual approach to create the hydraulic conductivity distribution and calibrated to the same hydrologic conditions. The model using the kriged hydraulic conductivity distribution had 30 vertically discretized layers, and the model using the the manually created hydraulic conductivity distribution had two vertically discretized layers. This USGS data release contains the model input and output files for the simulations described in the associated documentation report (https://doi.org/10.3133/sir2019-5088)

Access & Use Information

Public: This dataset is intended for public access and use. License: 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.

Downloads & Resources

Dates

Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
@Id http://datainventory.doi.gov/id/dataset/69588c1a5c2a8858bb09510bd5308b71
Identifier USGS:c6781715-2ee3-4f1f-878c-1bb63198d835
Data Last Modified 20201117
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://datainventory.doi.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 2add0027-53b5-4e50-a5d6-8c04c118dd38
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -86.08502193,41.58258243,-85.81351754,41.78746338
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 7490949cca418c4d7f0b9be11cba7a645cb479f17ce6469b9569af0689aa20bd
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -86.08502193, 41.58258243, -86.08502193, 41.78746338, -85.81351754, 41.78746338, -85.81351754, 41.58258243, -86.08502193, 41.58258243}

Didn't find what you're looking for? Suggest a dataset here.