Digital data sets that describe aquifer characteristics of the alluvial and terrace deposits along the Cimarron River from Freedom to Guthrie in northwestern Oklahoma

Metadata Updated: December 11, 2019

This data set consists of digital polygons of constant hydraulic conductivity values for the alluvial and terrace deposits along the Cimarron River from Freedom to Guthrie in northwestern Oklahoma. Ground water in 1,305 square miles of Quaternary-age alluvial and terrace deposits along the the Cimarron River from Freedom to Guthrie is an important source of water for irrigation, industrial, municipal, stock, and domestic supplies. Alluvial and terrace deposits are composed of interfingering lenses of clay, sandy clay, and cross-bedded poorly sorted sand and gravel. The aquifer is composed of hydraulically connected alluvial and terrace deposits that unconformably overlie the Permian-age Formations. The hydraulic-conductivity values for alluvial and terrace deposits used in this data set were published in a steady-state ground-water flow modeling report. The aquifer boundaries along geological contacts were extracted from published digital geology data sets. Boundaries defining the geographic limits of the aquifer were digitized from a mylar map, at a scale of 1:250,000. The maps were published at a scale of 1:900,000. The hydraulic conductivity values are 104.5 feet per day for the alluvial deposits and 47.5 feet per day for the terrace deposits. Ground-water flow models are numerical representations that simplify and aggregate natural systems. Models are not unique; different combinations of aquifer characteristics may produce similar results. Therefore, values of hydraulic conductivity used in the model and presented in this data set are not precise, but are within a reasonable range when compared to independently collected data.

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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.

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Dates

Metadata Date November 8, 2004
Metadata Created Date October 10, 2019
Metadata Updated Date December 11, 2019
Reference Date(s) January 1, 1997 (publication)
Frequency Of Update notPlanned
Frequency Of Update notPlanned

Metadata Source

Harvested from DOI CKAN Harvest Source

Graphic Preview

A browse image of the four aquifer data sets.

Additional Metadata

Resource Type Dataset
Metadata Date November 8, 2004
Metadata Created Date October 10, 2019
Metadata Updated Date December 11, 2019
Reference Date(s) January 1, 1997 (publication)
Responsible Party U.S. Geological Survey (Point of Contact)
Contact Email
Access Constraints Use Constraints: Lines representing geological contacts were extracted from digital geology data sets (Cederstrand, 1996a, 1996b, 1996c, 1996d) based on a scale of 1:250,000. Lines representing the geographic limits of the aquifer were digitized from a mylar map (33 inches by 31 inches), at a scale of 1:250,000. Hydraulic conductivity polygons represented at these scales are indicative of broad, regional trends and should not be interpreted as site specific. The hydraulic conductivity polygons that were digitized from a mylar map had a maximum root-mean-squared-error (RMSE) of 0.008 map inches (0.020 map centimeters) or 167.49 feet (51.05 meters) ground distance. Ground-water flow models are numerical representations that simplify and aggregate natural systems. Models are not unique; different combinations of aquifer characteristics may produce similar results. The hydraulic conductivity and recharge are closely interrelated. As long as these two model inputs are in balance the model has a small mean residual; it represents the natural system numerically. If the hydraulic conductivity is accurately known, the model can be used to accurately determine recharge. Likewise, if the hydraulic conductivity is poorly known, then the recharge will be poorly determined. Therefore, values of hydraulic conductivity used in the model and presented in this data set are not precise, but are within a reasonable range when compared to independently collected data. In most aquifers, hydraulic conductivity measurements made in wells or in cores will range over several orders of magnitude, even over short horizontal and vertical distances. Hydraulic conductivity values derived from ground-water flow models represent areal generalizations and do not reflect the large local variance in well or core measurements., Access Constraints: None.
Bbox East Long -97.5243
Bbox North Lat 36.8974
Bbox South Lat 35.7774
Bbox West Long -99.0874
Coupled Resource
Frequency Of Update notPlanned
Graphic Preview Description A browse image of the four aquifer data sets.
Graphic Preview File https://water.usgs.gov/GIS/browse/ofr96-445.gif
Graphic Preview Type GIF
Guid
Harvest Object Id 1fc96dbe-52a9-44ae-9c1e-c8319d69199c
Harvest Source Id 34ce571b-cb98-4e0b-979f-30f9ecc452c5
Harvest Source Title DOI CKAN Harvest Source
Licence Although this data set has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester true

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