Section 1	Identification Information
Originator	Natural Resource Research Institute
Title	Lake Superior Basin - 50 km buffer
Abstract	This data set was derived from the Lake Superior Watershed Boundary. A 50 km buffer was generated around the watershed boundary to account for factors outside of the watersheds which may influence the Lake Superior Basin.
Purpose	A base data later
Time Period of Content Date
Currentness Reference	Observed
Progress	Complete
Maintenance and Update Frequency	Unknown
Spatial Extent of Data	All states and provinces being part of a 50 km buffer of the Lake Superior Drainage Basin. This includes parts of Michigan, Wisconsin, Minnesota, and Ontario, Canada.
Bounding Coordinates	-97.293 -81.564 49.255 41.573
Place Keywords	Michigan, Minnesota, Wisconsin, Ontario, Canada, Lake Superior
Theme Keywords	Lake Superior Drainage Basin,
Theme Keyword Thesaurus	None
Access Constraints	None
Use Constraints	None
Contact Person Information	Gerald Sjerven, GIS Specialist Natural Resource Research Institute 5013 Miller Trunk Highway Duluth, Minnesota 55811 Phone: (218)-720-4388 FAX: (218)-720-4328 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	Attributes appear to be fairly accurate. Limitations may only exist in the mapping of the watershed boundary. There are no known deficiencies in the data set.
Logical Consistency	Contact NRRI
Completeness	The entire Lake Superior Basin, buffered 50 km, is covered. The data is complete.
Horizontal Positional Accuracy	Contact NRRI
Vertical Positional Accuracy	n/a
Lineage	The Lake Superior Watershed boundary was buffered 50 km, as mentioned in the abstract. This was then used as our 'clip coverage.'
Source Scale Denominator	24000
Section 3	Spatial Data Organization Information - - - - - - Go back to top
Native Data Set Environment	PC Arc/INFO 7.1.2
Geographic Reference for Tabular Data	None
Spatial Object Type	Vector
Vendor Specific Object Types	Polygons, label points
Tiling Scheme	Counties
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
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	Entity and attribute information is self-explanatory. There is only 6 attributes associated with lsb50: shape, area, perimeter, lsb50, lsb50-id, and inside.
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	Gerald 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
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

Go back to top