Section 1 | Overview | |||
Originator | Minnesota Department of Natural Resources | |||
Title | POTSFPY | |||
Abstract | Modeled potentiometric surface elevations of the buried sand and gravel aquifers in Chisago County, Minnesota. | |||
Purpose | Chisago County Geologic Atlas, Part B, County Geologic Atlas Series C-22 | |||
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 | Chisago County, Minnesota | |||
Bounding Coordinates | -97.27 -89.4 49.4 43.4 | |||
Place Keywords | Chisago County, Minnesota | |||
Theme Keywords | aquifer potentiometric surface elevations, buried aquifer | |||
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 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 | Holly Johnson,
GIS Specialist Minnesota Department of Natural Resources 500 Lafayette Rd St. Paul, MN 55155-4025 Phone: 651-259-5693 Email: holly.je.johnson@state.mn.us | |||
Browse Graphic | None available | |||
Associated Data Sets | Chisago County Geologic Atlas, Part A, County Geologic Atlas Series C-22, published by the Minnesota Geological Survey, 2010. More information and downloadable data for Part A is available on the MGS data site: http://www.mngs.umn.edu/county_atlas/countyatlas.htm | |||
Section 2 | Data Quality | |||
Attribute Accuracy | ||||
Logical Consistency | Data are topologically correct using ArcGIS 10.2 | |||
Completeness | Complete | |||
Horizontal Positional Accuracy | NA | |||
Vertical Positional Accuracy | NA | |||
Lineage | These files were made with water level information from two general sources: driller's logs from the County Well Index (CWI) database managed by the Minnesota Department of Health and the Minnesota Geological Survey with verified locations and measurements by DNR staff in conjunction with well sampling for this atlas project. The driller's log data were obtained from the CWI database and represent a data set that was collected over a period of several decades and spans seasonal and multi-year climatic trends of wet and dry conditions. Where the dataset included both CWI driller's log information and water levels collected by DNR staff, the DNR data were used. The potentiometric surfaces of the buried sand and gravel aquifers were created by interpolating static water-level elevations for wells constructed in each aquifer using the ArcGIS Topo to Raster tool. The Analysis Mask was set to the extent of the buried aquifer. | |||
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 | ||||
Detailed Citation | ||||
Table Detail: |
POTSFPY | |||
Field Name | Valid Values | Definition | Definition Source |
---|---|---|---|
AQUIFER_Q | Quaternary buried sand and gravel aquifer code. The aquifers are identified as either"sl", "sc", "se", "sx", "sr", or "sp". | ||
ELEVATION | Modeled potentiometric elevations of buried aquifers in feet above mean sea level. Elevations are in bins of 35 feet and range from 665 ft. to 1000 ft. above mean sea level. |
Section 6 | Distribution | |||
Publisher | Minnesota Department of Natural Resources, Ecological and Water Resources Division | |||
Publication Date | 2014 | |||
Contact Person Information | Holly Johnson,
GIS Specialist Minnesota Department of Natural Resources 500 Lafayette Rd St. Paul, MN 55155-4025 Phone: 651-259-5693 Email: holly.je.johnson@state.mn.us | |||
Distributor's Data Set Identifier | POTSFPY | |||
Distribution Liability | These data were prepared from publicly available information only. Every reasonable effort has been made to ensure the accuracy of the factual data on which these files are 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 metadata, shapefiles, and feature classes by clicking "I AGREE" below.
The geodatabase (Chisago_c22.gdb) is the preferred format. Shapefiles are also included (Chisago_c22_shape) for those who require that data format. The shapefiles were converted from feature classes in a file geodatabase. Because some of the data contain null values, which are not supported by shapefiles, we suggest using the shapefiles with caution. The conversion to shapefiles changes null values to zeros or blanks and makes querying the data more difficult. PDFs of the Chisago County Geologic Atlas plates can be downloaded at: http://www.dnr.state.mn.us/waters/programs/gw_section/mapping/platesum/chiscga.html | |||
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 | 07/24/2015 | |||
Contact Person Information | Holly Johnson,
GIS Specialist Minnesota Department of Natural Resources 500 Lafayette Rd St. Paul, MN 55155-4025 Phone: 651-259-5693 Email: holly.je.johnson@state.mn.us | |||
Metadata Standard Name | Minnesota Geographic Metadata Guidelines | |||
Metadata Standard Version | 1.2 | |||
Metadata Standard Online Linkage | http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm |