DS-777 Thickness-Weighted Average of Hydraulic Conductivity and Specific Yield for the Northern High Plains Groundwater-Flow Model in Parts of Colorado, Kansas, Nebraska, South Dakota, and Wyoming

This dataset is one of many developed in support of The High Plains Groundwater Availability Project and the U.S. Geological Survey Data Series Report: Geodatabase Compilation of Hydrogeologic, Remote Sensing, and Water-Budget-Component data for the High Plains aquifer, 2011 (DS777).

This dataset represents a thickness-weighted average of hydraulic conductivity (K) and specific yield (Sy) for 4,309 well points in the northern High Plains aquifer. Hydraulic conductivity is a measure of how much water flows through a unit section of an aquifer, under a unit gradient in a specified amount of time. Specific yield is a measure of how much water will drain from the aquifer by gravity. Both of these properties are important to develop a hydrogeologic framework for an aquifer and to gain an understanding of how water flows through the aquifer.

Included in this metadata document are the attribute definitions of all tables related to the feature class pts_K_Sy_TWA, including tbl_K_Sy_RawDataMaster a table of well point lithology records that terminate at the base of the aquifer. This document also includes the attribute definitions of the table of subsurface material, called tbl_Material that contains texture, grain-size, and sorting properties of the aquifer material, and the attribute definitions of the table of multipliers called tbl_Multiplier, which, based on certain subsurface materials, would reduce the computed values of these properties. The two tables, tbl_Material and tbl_Multiplier are used in the Geoparm macro to compute the K and Sy values at the wells in the pts_K_Sy_TWA feature class.
Attribute definitions for tbl_K_Sy are also included in this metadata document; tbl_K_Sy is the output table created by the Geoparm macro. The thickness weighted averages of K and Sy are computed by queries in this table after the macro is run. The thickness weighted averages were then transferred to the point feature class. (pts_K_Sy_TWA).

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:857c3f39-f018-4fe3-9178-dc4e69a06314
metadata_type geospatial
modified 20201117
old-spatial -105.940251, 38.401481, -96.329663, 43.685368
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 6b2b9e1ca4fd1185a3af64ab2d1cd45f6afac239
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-105.940251, 38.401481], [-105.940251, 43.685368], [ -96.329663, 43.685368], [ -96.329663, 38.401481], [-105.940251, 38.401481]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • aquifer
  • aquifer-base
  • aquifer-depth
  • ckan
  • colorado
  • environment
  • geo
  • geology
  • geoscientificinformation
  • geoss
  • groundwater
  • high-plains
  • hydrogeology
  • hydrology
  • inlandwaters
  • kansas
  • lithology
  • national
  • nebraska
  • north-america
  • northern-high-plains
  • south-dakota
  • united-states
  • usgs-857c3f39-f018-4fe3-9178-dc4e69a06314
  • well
  • wyoming
isopen False
license_id notspecified
license_title License not specified
maintainer U.S. Geological Survey
maintainer_email gs-w-txpublic-info@usgs.gov
metadata_created 2025-11-20T12:35:07.440847
metadata_modified 2025-11-20T12:35:07.440851
notes This dataset is one of many developed in support of The High Plains Groundwater Availability Project and the U.S. Geological Survey Data Series Report: Geodatabase Compilation of Hydrogeologic, Remote Sensing, and Water-Budget-Component data for the High Plains aquifer, 2011 (DS777). This dataset represents a thickness-weighted average of hydraulic conductivity (K) and specific yield (Sy) for 4,309 well points in the northern High Plains aquifer. Hydraulic conductivity is a measure of how much water flows through a unit section of an aquifer, under a unit gradient in a specified amount of time. Specific yield is a measure of how much water will drain from the aquifer by gravity. Both of these properties are important to develop a hydrogeologic framework for an aquifer and to gain an understanding of how water flows through the aquifer. Included in this metadata document are the attribute definitions of all tables related to the feature class pts_K_Sy_TWA, including tbl_K_Sy_RawDataMaster a table of well point lithology records that terminate at the base of the aquifer. This document also includes the attribute definitions of the table of subsurface material, called tbl_Material that contains texture, grain-size, and sorting properties of the aquifer material, and the attribute definitions of the table of multipliers called tbl_Multiplier, which, based on certain subsurface materials, would reduce the computed values of these properties. The two tables, tbl_Material and tbl_Multiplier are used in the Geoparm macro to compute the K and Sy values at the wells in the pts_K_Sy_TWA feature class. Attribute definitions for tbl_K_Sy are also included in this metadata document; tbl_K_Sy is the output table created by the Geoparm macro. The thickness weighted averages of K and Sy are computed by queries in this table after the macro is run. The thickness weighted averages were then transferred to the point feature class. (pts_K_Sy_TWA).
num_resources 2
num_tags 28
title DS-777 Thickness-Weighted Average of Hydraulic Conductivity and Specific Yield for the Northern High Plains Groundwater-Flow Model in Parts of Colorado, Kansas, Nebraska, South Dakota, and Wyoming