|
Section 1 | Identification Information - - - - - - top |
Originator | Minnesota DNR Waters - County Geologic Atlas and Regional Hydrogeologic Assessment Program |
Title | AQCWSNPY |
System Name | |
Abstract | CW aquifer pollution sensitivity in Pope County, Minnesota |
Purpose | County Geologic Atlas and Regional Hydrogeologic Assessment Program,
Pope County Geologic Atlas, Part B, County Geologic Atlas Series C-15 |
Time Period of Content Date | July, 2006 |
Currentness Reference | Publication date |
Progress | Complete |
Maintenance and Update Frequency | None Planned |
Spatial Extent of Data | Pope County, Minnesota |
Bounding Coordinates | East | -95.8 | West | -95.1 | North | 45.8 | South | 45.4 |
|
Place Keywords | Minnesota, Pope County |
Theme Keywords | Pollution sensitivity, CW 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 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 | Pope County Geologic Atlas, Part A, County Geologic Atlas Series C-15, published by the Minnesota Geological Survey, 2003. More information and downloadable data for Part A available on the MGS ftp site. |
|
Section 2 | Data Quality Information - - - - - - top |
Attribute Accuracy | |
Logical Consistency | Data are topologically correct using ArcGIS 9.1 |
Completeness | Complete |
Horizontal Positional Accuracy | unknown |
Vertical Positional Accuracy | not applicable |
Lineage | This file is a representation of the thickness between the top of the CW aquifer and the base of the second recharge surface (see recharge surface 2, Figure 3, Plate 9). Recharge surface 2 (rechsurf_2) was calculated by the expression: con(isnull(lgbot4_spl),cwrecharge2,con((cwrecharge2-otbot_spl)<=10,cwrecharge2-(cwrecharge2-otbot_sp l),cwrecharge2)) cwrecharge2 was calculated by subtracting the thickness of the OT sand, where it exists in the western two thirds of the county, from the recharge surface 1. This expression does two things: where no Lower Goose group exists (in the eastern 1/3 of the county) the result is cwrecharge2, if the till thickness above the CW sand is <= 10 feet then the result is the bottom of the OT sand, otherwise the result is cwrecharge2 (which is the same as rechargesurf and recharge surface 1 where no OT sand exists). The sensitivity rating model, based on the thickness of the protective layer between the aquifer and the nearest overlying recharge surface, is described in Figure 5 of Plate 9. Sensitivity ratings are applied as follows:
Protective layer thickness - - Sensitivity Rating
0 to 10 feet - - Very High
10 to 20 feet - - High
20 to 30 feet - - Moderate
30 to 40 feet - - Low
Greater than 40 feet - - Very Low The final raster was converted to a polygon shapefile. Sensitivity interpretation was based on overlapping estimated time of travel ranges as follows:
Red - - Very High - - Hours to months
Orange - - High - - Weeks to years
Yellow - - Moderate - - Years to decades
Light green - - Low - - Decades to a century
Dark green - - Very Low - - A century or more |
Source Scale Denominator | 100000 |
|
Section 3 | Spatial Data Organization Information - - - - - - top |
Native Data Set Environment | ArcGIS 9.1 |
Geographic Reference for Tabular Data | Not Applicable |
Spatial Object Type | Vector |
Vendor Specific Object Types | polygon |
Tiling Scheme | state |
|
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 |
|
Section 5 | Entity and Attribute Information - - - - - - top |
Entity and Attribute Overview | |
Entity and Attribute Detailed Citation HTML Table (Not Available) | aqcwsnpy | | | | Rating | "VH" is very high
"H" is high
"M" is moderate
"L" is low
"VL" is very low |
|
|
Section 6 | Distribution Information - - - - - - top |
Publisher | Minnesota DNR Waters |
Publication Date | 2006 |
Contact Person Information | See Metadata Reference Information section, below |
Distributor's Data Set Identifier | aqcwsnpy |
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 ARCVIEW shapefiles from:
Pope County Geologic Atlas, Part B: Metadata for GIS and Digital Data |
Online Linkage | Pope County Geologic Atlas, Part B: Metadata for GIS and Digital Data |
|
Section 7 | Metadata Reference Information - - - - - - top |
Metadata Date | 2006-11-21 |
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 |
| |
|
