GIS Metadata
This page last updated: 2012
Metadata created using Minnesota Geographic Metadata Guidelines
Go to Section:
- Overview
- Data Quality
- Data Organization
- Coordinate System
- Attributes
- - Get Data
- Metadata Reference
| Section 1 | Overview | |||
| Originator | Minnesota Department of Natural Resources | |||
| Title | Benton County Geologic Atlas, Part B | |||
| Abstract | ArcGIS files depicting characteristics of the groundwater system of Benton County, Minnesota | |||
| Purpose | GIS layers cartographically depict spatially analyzed data used in the production of the Benton 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 | ||||
| Currentness Reference | data was acquired or accessed between 2010 and 2012 | |||
| Progress | Complete | |||
| Maintenance and Update Frequency | None Planned | |||
| Spatial Extent of Data | Benton County, Minnesota | |||
| Bounding Coordinates | -94.3 -93.7 45.8 45.5 | |||
| Place Keywords | Benton County, Minnesota | |||
| Theme Keywords | buried sand and gravel 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 Information | See GIS contact on our on the Groundwater Atlas Contacts page. Minnesota Department of Natural Resources 500 Lafayette Rd St. Paul, MN 55155-4025 | |||
| Browse Graphic | None available | |||
| Associated Data Sets | Benton County Geologic Atlas, Part A, County Geologic Atlas Series C-23, published by the Minnesota Geological Survey, 2009. More information and downloadable data for Part A available on the MGS site: http://www.mngs.umn.edu/county_atlas/countyatlas.htm. | |||
| Section 2 | Data Quality | |||
| Attribute Accuracy | -- | |||
| Logical Consistency | Data are topologically correct using ArcGIS 10.0 | |||
| 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 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, flow direction, aquifer parameters), 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. | |||
| Section 3 | Spatial Data Organization | |||
| Not used in this metadata | ||||
| Section 4 | Coordinate System | |||
| Horizontal Coordinate Scheme | Universal Transverse Mercator | |||
| UTM Zone Number | 15 | |||
| Horizontal Datum | NAD83 | |||
| Horizontal Units | meters | |||
| Section 5 | Attributes | |||
| Overview | The Benton County Geologic Atlas, Part B consists of 7 separate GIS data layers divided into four plates: Plate 6 - Hydrogeology of the Surficial Sand Aquifer Plate 7 - Hydrogeologic Cross Sections Plate 8 - Hydrogeology of the Buried Aquifers and Rice Area Aquifer System Plate 9 - Sensitivity of Groundwater Systems to Pollution | |||
| Detailed Citation | ||||
| Table Detail: | ||||
| Used in more than one plate | |||
| Field Name | Valid Values | Definition | Definition Source |
|---|---|---|---|
| chempt | Wells sampled by DNR staff for chemistry | ||
| indexpt | Well data used by DNR staff to construct aquifer and related maps | ||
| Used in Plate 06 | |||
| Field Name | Valid Values | Definition | Definition Source |
|---|---|---|---|
| sdthpy | Modeled surficial sand aquifer thickness | ||
| gwelpy | Modeled water table elevation | ||
| Used in Plate 08 | |||
| Field Name | Valid Values | Definition | Definition Source |
|---|---|---|---|
| potsfcpy | Modeled potentiometric contour elevations of the buried aquifers | ||
| Used in Plate 09 | |||
| Field Name | Valid Values | Definition | Definition Source |
|---|---|---|---|
| aqbdsnpy | Sensitivity to pollution of the buried aquifers | ||
| nrsfsnpy | Sensitivity to pollution of the near-surface materials | ||
| Section 6 | Distribution | |||
| Publisher | Minnesota Department of Natural Resources, Ecological and Water Resources Division | |||
| Publication Date | 2012 | |||
| Contact Person Information | See GIS contact on our on the Groundwater Atlas Contacts page. Minnesota Department of Natural Resources 500 Lafayette Rd St. Paul, MN 55155-4025 | |||
| 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. | |||
| Ordering Instructions | Download zip file of all GIS files by clicking "I AGREE" below. | |||
| Online Linkage | I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details. | |||
| Section 7 | Metadata Reference | |||
| Metadata Date | 2012 | |||
| Contact Person Information | See GIS contact on our on the Groundwater Atlas Contacts page. Minnesota Department of Natural Resources 500 Lafayette Rd St. Paul, MN 55155-4025 | |||
| Metadata Standard Name | Minnesota Geographic Metadata Guidelines | |||
| Metadata Standard Version | 1.0.4 | |||
| Metadata Standard Online Linkage | ||||
This page last updated: 2012
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