GIS metadataCounty Geologic Atlas Series C-18 |
FULL METADATA RECORD
METADATA SUMMARYOriginator | Minnesota Department of Natural Resources, Waters Division, County Atlas and Regional Assessment Program | Abstract | ArcGIS shapefiles depicting a variety of characteristics of the groundwater system of Todd County, Minnesota | Time Period of Content Date | 2007-2010 | Currentness Reference | Publication date | Access Constraints | None | Use Constraints | 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. | Browse Graphic File Name | None Available | Distributer Contact Person | phone (651) 259-5693 or (651) 259-5700, See also Metadata Reference Section. | Ordering Instructions | Proceed to ENTITY AND ATTRIBUTE INFORMATION (below) | Online Linkage | None Available |
Section 1 | Identification Information | | Originator | Minnesota Department of Natural Resources, Division of Waters | | Title | Todd County Geologic Atlas, Part B | | Minnesota Clearinghouse ID | -- | | Abstract | ArcGIS shapefiles depicting a variety of characteristics of the ground water system of Todd County, Minnesota | | Purpose | Geographic information systems (GIS) layers were created to cartographically depict and spatially analyze data used in the production of the Todd County Geologic Atlas, Part B. A County Geologic Atlas (CGA) is a systematic study of a county's geologic and groundwater resources. Geologic studies include both glacial deposits and bedrock units. Groundwater studies include the distribution of surficial and buried sand aquifers, hydrogeology of the surficial and buried aquifers, and sensitivity to pollution of the buried aquifers and the near-surface materials. | | Time Period of Content Date | 2007-2010 | | Currentness Reference | Publication date | | Progress | Complete | | Maintenance and Update Frequency | None planned | | Spatial Extent of Data | Todd County, Minnesota | | West Bounding Coordinate | -95.2 | -- | | East Bounding Coordinate | -94.6 | -- | | North Bounding Coordinate | 46.4 | -- | | South Bounding Coordinate | 45.8 | -- | | Place Keywords | Todd County, Minnesota | | Theme Keywords | buried sand aquifer, groundwater, water chemistry, residence time, wells, water table, pollution sensitivity, surficial sand aquifer | | Theme Keyword Thesaurus | -- | | Access Constraints | None | | Use Constraints | 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 Minnesota 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 Person | See GIS contact on our on the Groundwater Atlas Contacts page.
Minnesota Department of Natural Resources
500 Lafayette Rd | | Associated Data Sets | Todd County Geologic Atlas, Part A, County Geologic Atlas Series C-18, published by the Minnesota Geological Survey, 2007. More information and downloadable data for Part A available on the MGS ftp site. |
Section 2 | Data Quality Information | | Attribute Accuracy | -- | | Logical Consistency | Data are topologically correct using ArcGIS 9.3 | | Completeness | Complete | | Horizontal Positional Accuracy | NA | | Vertical Positional Accuracy | NA | | Lineage | Review of available data:
Investigations begin with a review of existing information, such as earlier geologic maps, soil maps, hydrologic reports, and information provided by well drillers. Minnesota Geological Survey staff review and interpret driller's logs, and enter the data into the County Well Index (CWI), an interactive data base of water-well information. Collection of data from the field:
Field studies are conducted to measure static water level elevations in wells and chemistry of selected wells. These studies, combined with pre-existing data, are used to create models of water-table and bedrock hydrogeology (elevation, potentiometric surface, capacity, flow direction), and sensitivity of groundwater system to pollution. Creation of GIS layers:
Using a variety of techniques, data are converted into ArcGIS shapefiles, grids, or feature classes for cartographic display and spatial analysis. Metadata for individual layers contain more detailed lineage information.
| | Source Scale Denominator | 100,000 |
Section 3 | Spatial Data Organization Information | | Native Data Set Environment | ArcGIS | | Geographic Reference for Tabular Data | -- | | Spatial Object Type | Vector | | Vendor Specific Object Types | Point, Line, Polygon | | Tiling Scheme | Todd County |
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Section 4 | Spatial Reference Information | | Horizontal Coordinate Scheme | Universal Transverse Mercator (UTM) | | Ellipsoid | GRS 1980 | | Horizontal Datum | NAD83 | | Horizontal Units | Meters | | Altitude Datum | N.A. | | Altitude Units | N.A. | | Depth Datum | N.A. | | Depth Units | N.A. | | Cell Width | N.A. | | Cell Height | N.A. | | UTM Zone Number | 15 | | Coordinate Offsets or Adjustments | None | | Distance Resolution | -- |
Section 5 | Entity and Attribute Information | | Entity and Attribute Overview | The Todd County Geologic Atlas, Part B consists of 10 separate GIS data layers divided into four plates: Plate 7 - Distribution of the Surficial and Buried Sand Aquifers
Plate 8 - Hydrogeologic Cross Sections
Plate 9 - Hydrogeology of the Surficial and Buried Sand Aquifers
Plate 10 - Pollution Sensitivity of the Buried Sand Aquifers and the Near-Surface Materials
ArcGIS shapefiles are available.
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| Shapefiles used in more than one plate |
| chempt | Wells sampled by DNR staff for chemistry. Also includes historical data from wells sampled by MPCA staff. | |
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| indexpt | Well data used by DNR staff to construct aquifer and related maps | |
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| Shapefiles used in Plate 7,
Distribution of the Surficial and Buried Sand Aquifers |
| sdthpy | Modeled surficial sand aquifer thickness | |
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| aqthcnln | Modeled aquifer thickness contours of the buried aquifers | |
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| aqdppy | Modeled depth to the top of the buried aquifers | |
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| Shapefiles used in Plate 9,
Hydrogeology of the Surficial and Buried Sand Aquifers |
| gwelpy | Modeled water table elevation | |
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| potsfcpy | Modeled potentiometric surface of the buried aquifers | |
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| Shapefiles used in Plate 10,
Pollution Sensitivity of the Buried Sand Aquifers and the Near-Surface Materials |
| aqbdsnpy | Sensitivity to pollution of the buried aquifers | |
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| nrsfsnpy | Sensitivity to pollution of the near-surface materials | |
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| Additional shapefile not shown on any plate |
| gwdppy | Modeled water-table depth
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Section 6 | Distribution Information | | Publisher | Minnesota Department of Natural Resources, Waters Division | | Publication Date | 2010 | | Online Linkage | -- | | Distributor Contact Person | See GIS contact on our on the Groundwater Atlas Contacts page.
Minnesota Department of Natural Resources
500 Lafayette Rd | | 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 Liability | This 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 Name | Shapefile | | Transfer Format Version Number |
| | Transfer Size | -- | | Ordering Instructions | See ENTITY AND ATTRIBUTE INFORMATION (above) |
Section 7 | Metadata Reference Information | | Metadata Date | 2011 | | Metadata Contact Person | GIS Specialist | | Metadata Contact Organization | Minnesota Department of Natural Resources, Waters Division | | Metadata Contact Position | GIS Specialist | | Metadata Contact Address | 500 Lafayette Road | | Metadata Contact City | St. Paul | | Metadata Contact State or Province | MN | | Metadata Contact Postal Code | 55155-4032 | | Metadata Contact Voice Phone | (651) 259-5693 or (651) 259-5700 | | Metadata Contact Fax Phone | (651) 296-0445 | Metadata Contact
E-mail Address | | | Metadata Standard Name | Minnesota Geographic Metadata Guidelines | | Metadata Standard Version | 1.0.4 | | Metadata Standard Online Linkage | -- |
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