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Section 1 | Identification Information - - - - - - top |
Originator | Minnesota DNR Waters - County Geologic Atlas and Regional Hydrogeologic Assessment Program |
Title | GWDPPY |
System Name | |
Abstract | Countywide modeled depth to water-table. This shapefile includes an estimate of the depth to the water table in the surficial sand aquifer and in non-aquifer sediments. This layer was calculated by subtracting the water-table elevation model from the surface elevation model (DEM). Because of much better data in the surficial sand aquifer, the model of the water-table elevation in that area is much more accurate than the estimate in non-aquifer material. Thus, the depth to water table model in non-aquifer sediments is a poorly constrained estimate. |
Purpose | County Geologic Atlas and Regional Hydrogeologic Assessment Program,
Todd County Geologic Atlas, Part B, County Geologic Atlas Series C-18 |
Time Period of Content Date | November, 2010 |
Currentness Reference | Publication date |
Progress | Complete |
Maintenance and Update Frequency | None Planned |
Spatial Extent of Data | Todd County, Minnesota |
Bounding Coordinates | East | -94.6 | West | -95.2 | North | 46.4 | South | 45.8 |
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Place Keywords | Minnesota, Todd County |
Theme Keywords | depth to water table |
Theme Keyword Thesaurus | None |
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. |
Contact Person Information | See Metadata Reference Information section, below |
Browse Graphic File Name | |
Browse Graphic File Description | |
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. |
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Section 2 | Data Quality Information - - - - - - top |
Attribute Accuracy | |
Logical Consistency | Data are topologically correct using ArcGIS 9.3 |
Completeness | Complete |
Horizontal Positional Accuracy | unknown |
Vertical Positional Accuracy | not applicable |
Lineage | This layer was calculated by subtracting the water table elevation model from the surface DEM (USGS 1:24000 level 2 DEM of MN). The depth to water table estimate is reasonably accurate in areas of the surficial aquifer where well data exist. It is tenuous elsewhere in the surficial aquifer. Depth to water table data in non-aquifer material are extremely limited; in non-aquifer material the depth to water table model is a poorly constrained estimate and should be verified locally if site specific data are required. |
Source Scale Denominator | 100000 |
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Section 3 | Spatial Data Organization Information - - - - - - top |
Native Data Set Environment | ArcGIS 9.3 |
Geographic Reference for Tabular Data | Not Applicable |
Spatial Object Type | Vector |
Vendor Specific Object Types | polygon |
Tiling Scheme | state |
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Section 4 | Spatial Reference Information - - - - - - top |
Horizontal Coordinate Scheme | UTM |
Ellipsoid | GRS1980 |
Horizontal Datum | NAD83 |
Horizontal Units | meters |
Distance Resolution | meters |
Altitude Datum | n/a |
Altitude Units | n/a |
Depth Datum | n/a |
Depth Units | n/a |
Cell Width | 0 |
Cell Height | 0 |
Latitude Resolution | 0 |
Longitude Resolution | 0 |
UTM Zone Number | 15 |
SPCS Zone Identifier | 0 |
County Coordinate Zone Identifier | 0 |
Coordinate Offsets or Adjustments | n/a |
Map Projection Name | n/a |
Map Projection Parameters | n/a |
Other Coordinate System's Definition | n/a |
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Section 5 | Entity and Attribute Information - - - - - - top |
Entity and Attribute Overview | |
Entity and Attribute Detailed Citation HTML Table (Not Available) | GWDPPY | | | | Depth
(representing modeled water table depth in feet below land surface) | 0-10
10-20
>20 |
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Section 6 | Distribution Information - - - - - - top |
Publisher | Minnesota DNR Waters |
Publication Date | 2010 |
Contact Person Information | See Metadata Reference Information section, below |
Distributor's Data Set Identifier | GWDPPY |
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 | Download ArcGIS shapefiles from:
Todd County Geologic Atlas, Part B: Metadata for GIS and Digital Data |
Online Linkage | Todd County Geologic Atlas, Part B: Metadata for GIS and Digital Data |
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Section 7 | Metadata Reference Information - - - - - - top |
Metadata Date | 2011-01-03 |
Contact Person Information | GIS Specialist, Atlas/Assessment Program
Minnesota DNR - Division of Waters
500 Lafayette Road
Saint Paul, MN 55155
Phone: (651) 259-5693
FAX: (651) 296-0445
E-mail: |
Metadata Standard Name | Minnesota Geographic Metadata Guidelines |
Metadata Standard Version | 1.2 |
Metadata Standard Online Linkage | http://www.lmic.state.mn.us/gc/stds/metadata.htm |
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