Section 1 |
Identification Information |
| Originator |
Natural Resource Research Institute |
| Title |
Lake Superior Bathymetry |
| Abstract |
The Lake Superior Bathymetry file is a grid file detailing the depth of Lake Superior. |
| Purpose |
A base data layer |
| Time Period of Content Date |
03/25/1998 |
| Currentness Reference |
Date of last change to the data file |
| Progress |
Complete |
| Maintenance and Update Frequency |
As needed |
| Spatial Extent of Data |
Lake Superior |
| Bounding Coordinates |
-97.293
-81.564
49.255
41.573 |
| Place Keywords |
Lake Superior |
| Theme Keywords |
Lake Superior Drainage Basin, Lake Superior, depth, bathymetry |
| Theme Keyword Thesaurus |
None |
| Access Constraints |
None |
| Use Constraints |
None |
| Contact Person Information |
Gerald Sjerven, GIS
Specialist
Natural Resource Research Institute
513 Miller Trunk Highway
Duluth, Minnesota 55811
Phone: (218)-720-4388
FAX: (218)-720-4219
E-mail: gsjerven@sage.nrri.umn.edu
|
| Browse Graphic File Name |
none available
|
| Browse Graphic File Description |
|
| Associated Data Sets |
|
Section 2 |
Data Quality Information - - - - - - Go back to top |
| Attribute Accuracy |
See entity and attribute overview, contact NRRI |
| Logical Consistency |
There are no known topological problems |
| Completeness |
There is no known incomplete information; see entity and attribute overview |
| Horizontal Positional Accuracy |
None available |
| Vertical Positional Accuracy |
Not applicable |
| Lineage |
1 km grid surface generated from depth point values using inverse distance weighted interpolation with 12 nearest neighbors. The data was then mapjoined and adjusted to match the shoreline. |
| Source Scale Denominator |
547160 |
Section 3 |
Spatial Data Organization Information - - - - - - Go back to top |
| Native Data Set Environment |
Arc/INFO 7.1.2 |
| Geographic Reference for Tabular Data |
None |
| Spatial Object Type |
Vector |
| Vendor Specific Object Types |
Arc, area, label point, polygon |
| Tiling Scheme |
Not applicable |
Section 4 |
Spatial Reference Information - - - - - - Go back to top |
| Horizontal Coordinate Scheme |
Geographic (Lat. Long.) |
| Ellipsoid |
GRS80 |
| Horizontal Datum |
NAD83 |
| Horizontal Units |
Meters |
| Distance Resolution |
|
| Altitude Datum |
Not applicable |
| Depth Datum |
IGLD |
| Depth Units |
Meters |
| Cell Width |
1000 |
| Cell Height |
1000 |
| Map Projection Name |
Albers Equal Area |
| Map Projection Parameters |
Standard Parallel: 29.5
Standard Parallel: 45.5
Longitude Of Central Meridian: -96
Latitude Of Projection Origin: 23
False Easting: 0
False Northing: 0 |
| Other Coordinate System's Definition |
Planar Coordinate Encoding Method: Coordinate Pair
Abscissa Resolution: 1
Ordinate Resolution: 1
Semi-Major Axis: 6378206.4
Denominator of Flattening Ratio: 294.98 |
Section 5 |
Entity and Attribute Information - - - - - - Go back to top |
| Entity and Attribute Overview |
Due to data source type (grid), there are no entities or attributes for this file except the depth. |
| Entity and Attribute Detailed Citation |
None |
Section 6 |
Distribution Information - - - - - - Go back to top |
| Publisher |
Natural Resources Research Institute |
| Publication Date |
Unpublished material |
| Contact Person Information |
Gerry Sjerven,
GIS Specialist
Natural Resources Research Institute
5013 Miller Trunk Hwy
Duluth,
Minnesota
55811
Phone: (218)-720-4388
FAX: (218)-720-4328
E-mail:
gsjerven@sage.nrri.umn.edu
|
| Distributor's Data Set Identifier |
|
| Distribution Liability |
No warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The University of Minnesota shall not be held liable for improper or incorrect use of the data described and/or contained herein. |
| Transfer Format Name |
Arc/INFO export |
| Transfer Format Version Number |
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| Transfer Size |
|
| Ordering Instructions |
|
| Online Linkage |
Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" above.
|
Section 7 |
Metadata Reference Information - - - - - - Go back to top |
| Metadata Date |
08/25/1999 |
| Contact Person Information |
Joel Nelson,
GIS Intern
Natural Resource Research Institute
5013 Miller Trunk Highway
Duluth,
Minnesota
55811
Phone: (218)-720-4254
FAX: (218)-720-4328
E-mail:
jnelson@sage.nrri.umn.edu
|
| Metadata Standard Name |
Minnesota Geographic Metadata Guidelines |
| Metadata Standard Version |
2.01 |
| Metadata Standard Online Linkage |
http://www.lmic.state.mn.us/gc/stds/metadata.htm |
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