Land Use, 1969 Minnesota Statewide

This page last updated: 04/10/2007
Metadata created using Minnesota Geographic Metadata Guidelines


Metadata Summary

Originator Minnesota Land Management Information Center (LMIC)
Abstract Nine land use/land cover classes, interpreted from high altitude air photos, are recorded for each 40-acre parcel in the state. The file has been subdivided into 100-meter by 100-meter grid cells and spatially corrected to provide improved geographic reference. However, this processing step does not improve the original 40-acre resolution accuracy.
Browse Graphic View a sample of the data.
Time Period of Content Date 1969
Currentness Reference Land use/cover interpretation is based primarily on air photos. Photo dates: the state south of St. Cloud was flown in April 1968; the northern half of the state was flown in April 1969. Secondary source: Minnesota Department of Transportation County Highway Map Series (c.1968).
Access Constraints None
Use Constraints There are no known restrictions on the use of these data. Data use should be consistent with the source, scale, and data capture methods.

Redistribution Conditions: In obtaining these data from LMIC, it is understood that you and/or your organization have the right to use them for any internal purpose. If you modify them, you should document those changes in a metadata record that should accompany all redistributed data. If you transmit or provide these data in any form to another user, the data MUST be accompanied by a copy of this disclaimer and all documentation provided with the original data set including the full metadata record.
Distributor Organization Minnesota Land Management Information Center (LMIC)
Ordering Instructions This data set is distributed free of charge on the internet by clicking below after Online Linkage. Doing so will tell your browser to start downloading a self-extracting 'ZIP' file which contains the following:

- EPPL7 version of the data set (.epp, .leg, .ped, .clr, and .ctb files)
- ERDAS version of the data set (.gis and .leg files)
- GeoTIFF version of the data set (.tif, .trl, and .leg files)
- Shapefile version of the data set (.shp, .shx, and .dbf files)
- Metadata (.html) file for the data set
- NOTICE.RTF, an important notice about this data set that can be read by most word processing software, and an ascii text version of the same notice (NOTICE.TXT).

After downloading this self-extracting 'zip' file (which will have an 'exe' extension), simply execute (run) the file. (For example, you can double click it from Windows Explorer or File Manager). Doing this will automatically extract the files described above. You can then delete file types that you do not need.

This data set is also on the EPPL7 MGC100 data collection CD: http://www.lmic.state.mn.us/chouse/metadata/mgc100old.html
Online Linkage Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" in Section 6 of this metadata.

Full Metadata

Land Use, 1969 Minnesota Statewide

Go to Section:
1. Identification Information
2. Data Quality Information
3. Spatial Data Organization Information
4. Spatial Reference Information
5. Entity and Attribute Information
6. Distribution Information
7. Metadata Reference Information

 
Section 1 Identification Information   Top of page
Originator Minnesota Land Management Information Center (LMIC)
Title Land Use, 1969 Minnesota Statewide
Abstract Nine land use/land cover classes, interpreted from high altitude air photos, are recorded for each 40-acre parcel in the state. The file has been subdivided into 100-meter by 100-meter grid cells and spatially corrected to provide improved geographic reference. However, this processing step does not improve the original 40-acre resolution accuracy.
Purpose The data set is designed for use in regional and statewide planning, not for site-specific decision making.
Time Period of Content Date 1969
Currentness Reference Land use/cover interpretation is based primarily on air photos. Photo dates: the state south of St. Cloud was flown in April 1968; the northern half of the state was flown in April 1969. Secondary source: Minnesota Department of Transportation County Highway Map Series (c.1968).
Progress Complete
Maintenance and Update Frequency None planned
Spatial Extent of Data Minnesota
Bounding Coordinates -97.25
-89.48
49.40
43.50
Place Keywords Minnesota
Theme Keywords imageryBaseMapsEarthCover, PlanningCadastre, Land use, land cover, vegetation cover
Theme Keyword Thesaurus ISO 19115 Topic Category
Access Constraints None
Use Constraints There are no known restrictions on the use of these data. Data use should be consistent with the source, scale, and data capture methods.

Redistribution Conditions: In obtaining these data from LMIC, it is understood that you and/or your organization have the right to use them for any internal purpose. If you modify them, you should document those changes in a metadata record that should accompany all redistributed data. If you transmit or provide these data in any form to another user, the data MUST be accompanied by a copy of this disclaimer and all documentation provided with the original data set including the full metadata record.
Contact Person Information Nancy Rader, Data Distribution and Coordination Specialist
Minnesota Land Management Information Center (LMIC)
658 Cedar Street, 300 Centennial Building
St. Paul, MN 55155
Phone: 651-201-2489
FAX: 651-296-3698
E-mail: clearing.house@state.mn.us
Browse Graphic View a sample of the data.
Browse Graphic File Description A thumbnail graphic showing the statewide data.
Associated Data Sets 1. The EPPL7 MGC100 data collection CD contains the land use variable and many other resource-oriented variables (e.g., soils, forest cover, elevation) in the same EPPL7 raster format. http://www.lmic.state.mn.us/chouse/metadata/mgc100.html

2. Updated land use information is available in various formats for several different regions, including:
a. Land Use - Minnesota, Forested Area - (1991-1996)
http://www.lmic.state.mn.us/chouse/metadata/mrsc_lu.html
b. Land Use - Minnesota, Agricultural and Transition Areas (1989)
http://www.lmic.state.mn.us/chouse/metadata/luse89.html
c. Land use for Clearwater and Beltrami Counties, Minnesota (1986)
http://www.lmic.state.mn.us/chouse/metadata/bsuluse.html
d. Land use for Camp Ripley and Beltrami Island State Forest (1992-96)
http://www.lmic.state.mn.us/chouse/metadata/ripbisf.html
e. Minnesota Land Use and Cover: 1990s Census of the Land (8 categories statewide)
http://www.lmic.state.mn.us/chouse/metadata/luse8.html
f. Generalized land use for the Twin Cities metropolitan area (2000)
http://www.datafinder.org/metadata/landuse_2000.htm
g. Generalized land use for the Twin Cities metropolitan area - historical (1984, 1990, 1997, 2000);
http://www.datafinder.org/metadata/landuse_hist.htm

 
Section 2 Data Quality Information Top of full metadata Top of page
Attribute Accuracy It is important to recognize that the classification scheme uses two different criteria: dominant economic activity (use) and dominant spatial area (cover) to determine the class of any 40-acre parcel. Spatial dominance was confined to the undeveloped (in terms of structures) land classes and generally refers to cover type. The developed classes are determined by dominant economic activity. Both urban categories and some transportation types supersede other cover types and urban mixed will supersede all other classes except airports and railyards in the transportation category.
Logical Consistency Not applicable
Completeness Unknown
Horizontal Positional Accuracy Unknown
Vertical Positional Accuracy Not applicable
Lineage In 1969, the Minnesota Land Management Information System (MLMIS), then located at the University of Minnesota, began to develop the original MLMIS40 statewide database. The MLMIS40 database recorded resource characteristics for every 40-acre parcel of land in the state using the Public Land Survey system (PLSS) as the reference system. The MLMIS40 database used the EPPL format developed specifically for that project.

The primary information source for the land use file was 1:90,000-scale air photos from black and white panchromatic film. The state south of St. Cloud was flown in April 1968 and the northern half in April 1969. In both cases, the flights were flown east-to-west with flight lines about 10 miles apart. Current county highway maps (c.1968) which at that time indicated such cultural features as individual houses, were used as a secondary source.

Much of the original data entry was done with the classic grid-cell overlay technique. Each square, or raster, represented a 40-acre parcel creating a statewide database of about 1.4 million cells. By the late 1980s, the need for more detailed data for local GIS applications led to the development of MLMIS100, a new data standard with a finer spatial resolution. The MLMIS100 county data set is the geocorrected 100-meter resolution version of the MLMIS40 statewide data set.

1. EPPL 40-ACRE CODING PROCEDURE: Land use/land cover interpretations were made at the University of Minnesota by a team of students headed by a professional photo-interpreter. The data were coded by a recorder as the photo was being interpreted by a team of two. Each township was covered by a mylar overlay with section lines delineated. Each section was normally subdivided into sixteen 40-acre parcels. Actual roads and field lines were used to identify 40-acre parcels on the ground; the grid was used where no visible boundaries occurred.

2. GEOCORRECTION TO EPPL 100-METER DATA: In 1993, as part of the EPIC development project, a new data standard was created for use with raster GIS. The MGC100 (MLMIS Geocorrect 100 meter) state land use data set was created by appending all the MLMIS100 county land use data files together. The 100-M layer retains the characteristics and resolution of the original 40-acre file.

3. CONVERSION TO NAD83: In January 1998, the MGC100 data set was converted from NAD27 to NAD83 datum. GIS specialists and programmers from MN Department of Natural Resources, the Board of Water and Soil Resources, and LMIC cooperatively developed a standardized conversion process. It was determined that the difference between the two datums was small enough across any arbitrary area in Minnesota that it was sufficient to shift the files by the difference between NAD27 and NAD83. This procedure was adequate for the conversion of vector data sets but it caused cell mismatches when mosaicking raster data sets. Therefore, in order to create a uniform raster data set, LMIC shifted the EPPL7 files by adjusting the file extents to a multiple of the cell size, such that the actual cell size matched the nominal one, i.e. 100-meter data was made to be exactly 100 meters, with the edge of the file on 100-meter boundaries. Next, the 100-meter data was adjusted by 2 cells (200 meters) in the y direction. There was no need to adjust the files in the x direction because the difference between NAD27 and NAD83 datums is generally less than 10 meters.

4. CONVERSION TO ERDAS AND GEOTIFF FORMATS: ERDAS and GeoTIFF formats were created from the EPPL file using the EPPL Export functions.

5. CONVERSION TO SHAPEFILE FORMAT: Done at LMIC ca. 2002.
Source Scale Denominator
 
Section 3 Spatial Data Organization Information Top of full metadata Top of page
Native Data Set Environment EPPL7
Geographic Reference for Tabular Data None
Spatial Object Type Raster
Vendor Specific Object Types Cell
Tiling Scheme State
 
Section 4 Spatial Reference Information Top of full metadata Top of page
Horizontal Coordinate Scheme UTM
Ellipsoid GRS80
Horizontal Datum NAD83
Horizontal Units Meters
Distance Resolution Unknown
Altitude Datum Not applicable
Altitude Units Not applicable
Depth Datum Not applicable
Depth Units Not applicable
Cell Width 100
Cell Height 100
UTM Zone Number 15E
Coordinate Offsets or Adjustments None
 
Section 5 Entity and Attribute Information Top of full metadata Top of page
Entity and Attribute Overview The nine land use/land cover classification codes are:

1 Forested - A forty-acre parcel in which the dominant land use consists of trees. To be considered forested, a forty must contain a scattering of trees whose crowns cover at least 10 percent of the land area.

2 Cultivated - A forty-acre parcel in which the dominant use is land which has been recently tilled or harvested mechanically.

3 Water - A forty-acre parcel in which the dominant land use is open and permanent water.

4 Marsh - A forty-acre parcel in which the dominant land use consists of non-forested, shallow, permanently wet, vegetated areas.

5 Urban Residential - A forty-acre parcel containing five or more residential dwellings, and commercial buildings.

6 Extractive - A forty-acre parcel in which the dominant land use consists of the extraction of minerals, including ancillary facilities. Examples are mines, tailing piles, gravel pits.

7 Pasture and Open - A forty-acre parcel on non-forested land not used for any identifiable purpose. Examples are grazing land or abandoned farm land.

8 Urban Non-Residential or Mixed Residential Development - A forty-acre parcel containing at least one commercial, industrial, or institutional facility (including golf courses and cemeteries). It may or may not contain residential development.

9 Transportation - A forty-acre parcel in which the dominant land use consists of facilities for the conveyance of people or materials.
Entity and Attribute Detailed Citation 'MGC100 Data Documentation', formerly called 'Data Documentation for 40-Acre and 100-Meter Data for Use with EPPL7 on IBM PCs, PS/2s, or Compatibles'. Land Management Information Center, Minnesota Planning. 1996.

MGC100 data users are encouraged to obtain a copy of 'MGC100: Revisiting MLMIS40 Raster Data in 16-bit', by Thomas G. Eiber, Les Maki, and Ken Pekarek. This paper was presented at the 1996 Minnesota GIS/LIS Conference held September 25-27, 1996 in St. Louis Park, MN. A copy of this paper may be obtained by contacting Ken Pekarek - EPPL7 Coordinator: Eppl7.Mailbox@state.mn.us or call 651-296-1201.
 
Section 6 Distribution Information Top of full metadata Top of page
Publisher Minnesota Land Management Information Center (LMIC)
Publication Date Unknown
Contact Person Information Nancy Rader
Data Distribution and Coordination Specialist
Minnesota Land Management Information Center (LMIC)
658 Cedar Street, 300 Centennial Building
St. Paul, MN 55155
Phone: 651-201-2489
FAX: 651-296-3698
E-mail: clearing.house@state.mn.us
Distributor's Data Set Identifier luse69
Distribution Liability DISTRIBUTION LIABILITY STATEMENT
For data delivered on-line or by physical media by
The Land Management Information Center

Limitations: Although extensive effort has been made to produce error free and complete data, all geographic information has limitations due to the scale, resolution, date and interpretation of the original source materials. You should consult available data documentation (metadata) for these particular data to determine their limitations and the precision to which they depict distance, direction, location or other geographic characteristics. These data may be subject to periodic change without prior notification.

No Warranty: These data are provided as is, without any warranty whatsoever, including but not limited to any warranty as to their performance, merchantability, or fitness for any particular purpose.

Liability: The entire risk as to the results of the use of these data is assumed by the user. LMIC is not responsible for any interpretation or conclusions based on these data made by those who acquire or use it. LMIC shall not be liable for any direct, indirect, special, incidental, compensatory or consequential damages or third party claims resulting from the use of these data, even if LMIC has been advised of the possibility of such potential loss or damage. In States that do not allow the exclusion or limitation of incidental or consequential damages, you may not use these data.

Data Delivered on Electronic Media: If these data have been requested from LMIC on magnetic media, CD-ROM or any other physical media, LMIC will deliver this product in the computer-readable format agreed upon with the requestor. LMIC will re-issue these data if they are determined unreadable by correctly adjusted computer input devices, or when the medium is delivered in a damaged condition. Requests for re-issue of this digital data product must be made within 30 days of the date shipped from LMIC.
Transfer Format Name EPPL7, ERDAS, GeoTIFF, shapefile
Transfer Format Version Number 3.0
Transfer Size 10 MB as self-extracting zipfile; 2.9 MB EPPL7 format; 36.7 MB ERDAS format; 3.1 MB GeoTIFF format; 29.3 MB shapefile format.
Ordering Instructions This data set is distributed free of charge on the internet by clicking below after Online Linkage. Doing so will tell your browser to start downloading a self-extracting 'ZIP' file which contains the following:

- EPPL7 version of the data set (.epp, .leg, .ped, .clr, and .ctb files)
- ERDAS version of the data set (.gis and .leg files)
- GeoTIFF version of the data set (.tif, .trl, and .leg files)
- Shapefile version of the data set (.shp, .shx, and .dbf files)
- Metadata (.html) file for the data set
- NOTICE.RTF, an important notice about this data set that can be read by most word processing software, and an ascii text version of the same notice (NOTICE.TXT).

After downloading this self-extracting 'zip' file (which will have an 'exe' extension), simply execute (run) the file. (For example, you can double click it from Windows Explorer or File Manager). Doing this will automatically extract the files described above. You can then delete file types that you do not need.

This data set is also on the EPPL7 MGC100 data collection CD: http://www.lmic.state.mn.us/chouse/metadata/mgc100old.html
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 Top of full metadata Top of page
Metadata Date 04/10/2007
Contact Person Information Nancy Rader, Data Distribution and Coordination Specialist
Minnesota Land Management Information Center (LMIC)
658 Cedar Street, 300 Centennial Building
St. Paul, MN 55155
Phone: 651-201-2489
FAX: 651-296-2698
E-mail: clearing.house@state.mn.us
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


This page last updated: 04/10/2007