Southern Red River Valley, Minnesota Regional Hydrogeologic Assessment, Part B

Minnesota Geographic Metadata Guidelines
Version 1.0.4 - July 1, 1997

A State Version of the FGDC Content Standards for Geospatial Metadata


Data Set Name: DTWPY

Metadata Entered By: Randy McGregor

Date: 9/24/99


Section 1Identification Information
OriginatorMinnesota Department of Natural Resources, Division of Waters, Ground Water Mapping Program
TitleDTWPY
Minnesota Clearinghouse ID--
AbstractDepth to water table, polygons.
PurposeRegional Hydrogeologic Assessment Series RHA-3, Part B, Plate 4 Pollution Sensitivity
Time Period of Content Date1995-1999
Currentness Reference
ProgressComplete
Maintenance and Update FrequencyNone planned
Spatial Extent of DataSouthern Red River Valley, Minnesota, including: all of Norman, Clay, and Wilkin counties, western portions of Mahnomen, Becker, and Otter Tail counties; part of northern Traverse County, and part of northwestern Grant County. This is the area of Minnesota within USGS 1:100,000 scale tile-sheets 1910 (Ada), 2310 (Fargo), and 2710 (Wahpeton).
West Bounding Coordinate207,977--
East Bounding Coordinate274,044--
North Bounding Coordinate5,267,921--
South Bounding Coordinate5,098,424--
Place KeywordsBecker, Clay, Grant, Mahnomen, Norman, Otter Tail, Traverse, Wilkin counties, Red River of the North, Red River Valley
Theme KeywordPollution Sensitivity, Ground Water
Theme Keyword Thesaurus
Access ConstraintsNone
Use ConstraintsUsers may wish to verify critical information; sources include both the references here and information on file in the offices of the Minnesota Geological Survey and the Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements.
Contact PersonSee Metadata Reference Information, below
Contact Organization"
Contact Person Position"
Contact Address"
Contact City"
Contact State or Province"
Contact Postal Code"
Contact Voice Phone"
Contact Fax Phone"
Contact E-mail Address"
Browse Graphic File Name--
Browse Graphic File Description--
Associated Data SetsSouthern Red River Valley Regional Hydrogeologic Assessment, Part A - Produced by the Minnesota Geological Survey

Section 2Data Quality Information
Attribute Accuracy
Logical ConsistencyData are topologically correct using ARC/INFO 7.0.3
CompletenessComplete
Horizontal Positional AccuracyN.A.
Vertical Positional AccuracyN.A.
  • Lineage
  • A file of depth-to-water readings for several locations in the Southern Red River Study Area was kriged in Surfer, creating a grid file of interpolated readings every 1000 meters.
  • This file was converted into a DBF file in Excel, made into an "event theme" in Arcview, converted into a shapefile, then into an ARC/INFO coverage.
  • The coverage was converted into a TIN with the ARC command 'arctin,' then the TIN was contoured with the ARC command 'tincontour' with a 10-foot contour interval.
  • The resulting contour coverage was combined with the study area boundary with the ARC 'union' command, and built as a polygon coverage.
  • The labels from the polygons were given depth-to-water values by overlaying them with a depth-to-water lattice (made by applying the ARC command 'tinlattice' to the depth-to-water TIN explained above), and interpolating a single depth-to-water value from several depth-to-water values on the lattice that are in the immediate proximity of each label point on the lattice. The ARC command 'latticespot' does this. This gives each polygon label a depth-to-water value, but each polygon actually represents a range of values, because it comprises the entire area between 10 foot contour lines.
  • Polygon labels with a depth-to-water value of less than 10 were given a range value of 1 ( less than 10 feet). Polygon labels with a depth-to-water value of greater than 10 and less than 20 are given a range value of 2 (10 to 20 feet), etc. See Entity and Attribute Information, below.
  • Source Scale Denominator200,000

    Section 3Spatial Data Organization Information
    Native Data Set EnvironmentARC/INFO
    Geographic Reference for Tabular DataMeters
    Spatial Object TypeVector
    Vendor Specific Object TypesPolygons
    Tiling SchemeThe area of Minnesota within USGS 1:100,000 scale tile-sheets 1910 (Ada), 2310 (Fargo), and 2710 (Wahpeton).

    Section 4Spatial Reference Information
    Horizontal Coordinate SchemeUTM
    EllipsoidGRS 1980
    Horizontal DatumNAD83
    Horizontal UnitsMeters
    Altitude DatumN.A.
    Altitude UnitsN.A.
    Depth DatumN.A.
    Depth UnitsN.A.
    Cell WidthN.A.
    Cell HeightN.A.

    Section 5Entity and Attribute Information
    Entity and Attribute Overview
    Entity and Attribute Detailed Citation
    Table NameField NameBegin ColumnDefinitionValid ValuesDescription
    DTWPY.PATPolygon Attribute Table
    DTWRANGE272,2,iDepth-to-water range
    1Less than 10 feet
    210 to 20 feet
    320 to 30 feet
    430 to 40 feet
    5Greater than 40 feet.

    Section 6Distribution Information
    PublisherMinnesota Department of Natural Resources, Division of Waters
    Publication Date2000
    Online Linkage--
    Distributor Contact PersonSee Metadata Reference Information, below.
    Distributor Organization"
    Distributor Position"
    Distributor Address"
    Distributor City"
    Distributor State or Province"
    Distributor Postal Code"
    Distributor Voice Phone"
    Distributor Fax Phone"
    Distributor
    E-mail Address
    "
    Distributor's Data Set Identifier --
    Distribution LiabilityThis map was prepared from publicly available information only. Every reasonable effort has been made to ensure the accuracy of the factual data on which this map is based. However, the Department of Natural Resources does not warrant the accuracy, completeness, or any implied uses of these data. 

    Users may wish to verify critical information; sources include both the references here and information on file in the offices of the Minnesota Geological Survey and the Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements.

    Transfer Format NameARC/INFO, ArcExport, INFO
    Transfer Format Version Number7.1.1
    Transfer Size
    Ordering InstructionsDownload export files or shapefiles from: Southern Red River Valley Regional Hydrogeologic Assessment, Part B: Metadata for GIS and Digital

    Section 7Metadata Reference Information
    Metadata Date2000
    Metadata Contact Person
    Metadata Contact OrganizationMinnesota Department of Natural Resources, Division of Waters
    Metadata Contact Position
    Metadata Contact Address500 Lafayette Road
    Metadata Contact CitySt. Paul
    Metadata Contact State or ProvinceMN
    Metadata Contact Postal Code55155 - 4032
    Metadata Contact Voice Phone651 - 296 - 4800
    Metadata Contact Fax Phone651 - 296 - 0445
    Metadata Contact
    E-mail Address
    Metadata Standard NameMinnesota geographic Metadata Guidelines
    Metadata Standard Version1.0.4
    Metadata Standard Online Linkage--