Permeameter Test sites

Table of Contents

IDENTIFICATION_INFORMATION

  Citation:
    Citation_Information:
      Originator: COHYST modelers
      Publication_Date: 2001
      Title: Permeameter Test sites
      Edition: 2
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: Lincoln, NE
        Publisher: Department of Natural Resources
      Other_Citation_Details:
      Online_Linkage: HTTP://cohyst.dnr.state.ne.us/cohyst_data.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: Landon, Matthew K., Rus, David L., Harvey, F. Edwin, 2001, Comparison of instream methods for measuring 
                            hydraulic conductivity in sandy streambeds, Ground Water, 39 (6),p.870-885
          Publication_Date: 2001
          Title: Comparison of Instream Methods for Measuring Hydraulic Conductivity in Sandy Streambeds
          Publication_Information:
            Publication_Place: Journal and Web
            Publisher: Ground Water Journal
          Online_Linkage:  http://www.highbeam.com/library/ 
  Description:
    Abstract:
          Streambed hydraulic conductivity (K) values were determined at seven stream transects in the Platte River Basin
       in Nebraska using different instream measurement techniques. Values were compared to determine the most appropriate
       technique(s) for use in sandy streambeds. Values of K determined from field falling- and constant-head permeameter tests
       analyzed using the Darcy equation decreased as permeameter diameter increased. Seepage meters coupled with hydraulic 
       gradient measurements failed to yield K values in 40 percent of the trials. Consequently, Darcy permeameter and seepage meter 
       tests were not preferred approaches. In the upper 0.25 meters (m) of the streambed, field falling- and constant-head permeameter 
       tests analyzed with the Hvorslev solution generally had similar K values that were significantly greater than those determined using 
       the Hazen grain-size, Bouwer and Rice slug test for anisotropic and isotropic conditions, and Alyamani and Sen grain-size methods;
       median differences between these tests and the Hvorslev falling-head 60-centimeter diameter permeameter were about 8, 9, 17, 
       and 35 meters/day, respectively. The Hvorslev falling-head permeameter test is considered the most robust method for measuring
       K of the upper 0.25 m of the streambed because of the inherent limitations of the empirical grain-size methods and less sediment 
       disturbance for permeameter than slug tests. However, lateral variability in K along transects on the Platte, North Platte, and
       Wood Rivers was greater than variability in K between valid permeameter, grain-size, or slug tests, indicating that the method used
       may matter less than making enough measurements to characterize spatial variability adequately. At the Platte River tributary sites,
       the upper 0.3 m of the streambed typically had greater K than sediment located 0.3 - 2.5 m below the streambed surface,
       indicating that deposits below the streambed may limit ground-water/surface-water fluxes. The Hvorslev permeameter tests are 
       not a practical measurement approach for these greater depths. Thus, selection of a method for measuring streambed K needs 
       to consider the vertical location of the sediments that are most likely to limit the rate of ground-water/surface-water interaction.

    Purpose:
      Permeameter testing was performed at these locations. This coverage contains point locations, site names and results.
    Supplemental_Information:
This data set was re-projected to Stateplane, NAD83, fipszone 2600 for use in the Platte River
        Cooperative Hydrology Study using the ARCINFO PROJECT command.
                  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date:  June 2000
        Ending_Date: July 2000
    Currentness_Reference: ground condition
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: Continually
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -104.0292
      East_Bounding_Coordinate: -97.3876
      North_Bounding_Coordinate: 42.1010
      South_Bounding_Coordinate: 40.0093
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: permeameter testing
      Theme_Keyword: GPS
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Platte River Basin
      Place_Keyword: Nebraska
  Access_Constraints:
  Use_Constraints:
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: Nebraska Department of Natural Resources
        Contact_Person: Richard Vollertsen
      Contact_Position: Database Manager
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 301 Centennial Mall South
        City: Lincoln
        State_or_Province: NE
        Postal_Code: 68509-4676
        Country: USA
      Contact_Voice_Telephone: 402-471-3951
      Contact_Facsimile_Telephone: 402-471-2900
      Contact_Electronic_Mail_Address: rvollertsen@dnr.state.ne.us
      Hours_of_Service: 8AM-5PM
  Native_Data_Set_Environment:
    ArcView version 3.2 shapefile format
    c:\temp\cohyst\newbndshp\arcview\covers\more coverages\my coverages\chstrperm0202a.shp

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DATA_QUALITY_INFORMATION

  Attribute_Accuracy:
    Attribute_Accuracy_Report:
  Logical_Consistency_Report:
    This coverage is topologically clean.
  Completeness_Report:
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        +/- 50 feet. Points were located using a GPS run by COHYST
        modelers, handheld GPS.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: COHYST modelers
          Publication_Date: 20001019
          Title: Permeameter Test sites
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Lincoln, NE
            Publisher: Department of Natural Resources
          Other_Citation_Details:
          Online_Linkage: http://cohyst.dnr.state.ne.us/cohyst_data.html
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: June 2000
            Ending_Date: August 2000
        Source_Currentness_Reference: ground condition
      Source_Citation_Abbreviation:
      Source_Contribution:
    Process_Step:
      Process_Description:
        This coverage was created using a GPS unit. COHYST modelers
        performed or attempted to perform permeameter testing for
        analysis. THese locations were recorded with the GPS unit
        in UTM or lat/long and later re-projected to State Plane, NAD83.
      Source_Used_Citation_Abbreviation:
      Process_Date: 2000
      Source_Produced_Citation_Abbreviation:
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: Nebraska Department of Natural Resources
            Contact_Person: Richard Vollertsen
          Contact_Position: Database Manager
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 301 Centennial Mall South
            City: Lincoln
            State_or_Province: NE
            Postal_Code: 68509-4676
            Country: USA
          Contact_Voice_Telephone: 402-471-3951
          Contact_Facsimile_Telephone: 402-471-2900
          Contact_Electronic_Mail_Address: rvollertsen@dnr.state.ne.us
          Hours_of_Service: 8AM-5PM

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SPATIAL_DATA_ORGANIZATION_INFORMATION

  Direct_Spatial_Reference_Method: Point
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Point
      Point_and_Vector_Object_Count: 27

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SPATIAL_REFERENCE_INFORMATION

  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: State Plane Coordinate System 1983
        State_Plane_Coordinate_System:
          SPCS_Zone_Identifier:  Nebraska
          Lambert_Conformal_Conic:
            Standard_Parallel: 40.000000
            Standard_Parallel: 43.000000
            Longitude_of_Central_Meridian: -100.000000
            Latitude_of_Projection_Origin: 39.833333
            False_Easting: 1640416.666500
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Row and column
        Coordinate_Representation:
          Abscissa_Resolution:
          Ordinate_Resolution:
        Planar_Distance_Units: Feet
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1983
      Ellipsoid_Name: GRS 80
      Semi-major_Axis: 20925604.4720406
      Denominator_of_Flattening_Ratio: 298.26

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ENTITY_AND_ATTRIBUTE_INFORMATION

  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: G012permtst_0202.dbf
      Entity_Type_Definition: Shapefile Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: X_Coordinate
      Attribute_Definition: X_Coordinate of point
      Attribute_Definition_Source: GPS
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Y_Coordinate
      Attribute_Definition: Y_Coordinate of Point
      Attribute_Definition_Source: GPS
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label:Site Name
      Attribute_Definition: Name of site where data was collected
      Attribute_Definition_Source: USGS quad map and COHYST modeler
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: EST_KFTDAY
      Attribute_Definition: Estimated Conductivity in feet per day
      Attribute_Definition_Source: COHYST modeler
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: TRANS_AVE
      Attribute_Definition: Average transmisivity
      Attribute_Definition_Source: COHYST modeler
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
  Overview_Description:
    Entity_and_Attribute_Overview:
      X and Y coordinates as well as site names were collected for these points. The site coordinates
      were collected in Latitude/Longitude and then converted to state plane.
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION

  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: Nebraska Department of Natural Resources
        Contact_Person: Richard Vollertsen
      Contact_Position: Database Manager
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 301 Centennial Mall South
        City: Lincoln
        State_or_Province: NE
        Postal_Code: 68509-4676
        Country: USA
      Contact_Voice_Telephone: 402-471-3951
      Contact_Facsimile_Telephone: 402-471-2900
      Contact_Electronic_Mail_Address: rvollertsen@dnr.state.ne.us
      Hours_of_Service: 8AM-5PM
  Resource_Description:
  Distribution_Liability:
    No warranty expressed or implied is made by the Nebraska
    Natural Resources Commission or the Platte River
    Cooperative Hydrology Study.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name:SHAPEFILE
      Digital_Transfer_Option:
        Offline_Option:
          Offline_Media:
          Recording_Format:
          Compatibility_Information:
    Fees: none unless media is required
    Ordering_Instructions:
      Data may be downloaded from the COHYST website at cohyst.dnr.state.ne.us

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METADATA_REFERENCE_INFORMATION

  Metadata_Date: 20001019
  Metadata_Review_Date: 20001020
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: Nebraska Department of Natural Resources
        Contact_Person: Richard Vollertsen
      Contact_Position: Database Manager
      Contact_Address:
        Address_Type: Mailing and physical address
        Address: PO Box 94676
        City: Lincoln
        State_or_Province: NE
        Postal_Code: 68509-4676
        Country: USA
      Contact_Voice_Telephone: 402-471-3951
      Contact_Facsimile_Telephone: 402-471-2900
      Contact_Electronic_Mail_Address: rvollertsen@dnr.state.ne.us
      Hours_of_Service: 8am-5pm cst
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
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