Metro Area Parcel Overlays

This page last updated: 04/11/2007
Metadata created using Minnesota Geographic Metadata Guidelines


Metadata Summary

Originator MetroGIS and counties of Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and Washington; positional modifications by LMIC
Abstract This data set is derived from a compilation of parcel layers from the seven Twin Cities metropolitan area counties of Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and Washington. To create the parent data set, parcel data from the seven counties were assembled by Dakota County GIS staff into a common coordinate system and combined into one shapefile; no attempt was made to edgematch or rubbersheet between counties.

To create this derived data set for use in EPPLViewer 2001, the data was converted from shapefile format to EPPL .dgt (line) format by LMIC. NO ATTRIBUTE INFORMATION IS INCLUDED IN THIS DERIVED DATA SET.

See metadata for each county's parcel data set for more information.
Browse Graphic none available
Time Period of Content Date 10/1999
Currentness Reference Parcel data was obtained by Dakota County staff from each county in October, 1999. The actual source dates of each county's data set are not known.
Access Constraints Access to the non-attributed parcel linework is via the EPPLViewer 2001 software only. Access to the full parent MetroGIS parcel shapefile dataset is via a licensing agreement with MetroGIS and the seven metropolitan counties which originally produced the data.
Use Constraints For use with EPPLViewer2001 software only.
Distributor Organization Minnesota Land Management Information Center (LMIC)
Ordering Instructions Contact distributor.
Online Linkage none available

Full Metadata

Metro Area Parcel Overlays

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 MetroGIS and counties of Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and Washington; positional modifications by LMIC
Title Metro Area Parcel Overlays
Abstract This data set is derived from a compilation of parcel layers from the seven Twin Cities metropolitan area counties of Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and Washington. To create the parent data set, parcel data from the seven counties were assembled by Dakota County GIS staff into a common coordinate system and combined into one shapefile; no attempt was made to edgematch or rubbersheet between counties.

To create this derived data set for use in EPPLViewer 2001, the data was converted from shapefile format to EPPL .dgt (line) format by LMIC. NO ATTRIBUTE INFORMATION IS INCLUDED IN THIS DERIVED DATA SET.

See metadata for each county's parcel data set for more information.
Purpose To view and display parcel linework within the EPPLViewer software anywhere in the seven county metro area.
Time Period of Content Date 10/1999
Currentness Reference Parcel data was obtained by Dakota County staff from each county in October, 1999. The actual source dates of each county's data set are not known.
Progress Complete
Maintenance and Update Frequency Quarterly updates are currently expected for future versions of the parent data set. LMIC may create updated EPPL linework for future versions of EPPLViewer
Spatial Extent of Data Twin Cities 7 County Metropolitan Area. This includes the counties of Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and Washington in Minnesota. Carver county parcel dataset is currently incomplete.
Bounding Coordinates -94.012
-92.732
45.415
44.471
Place Keywords Twin Cities, Anoka County, Carver County, Dakota County, Hennepin County, Ramsey County, Scott County, Washington County
Theme Keywords planningCadastre, parcels, regional parcel data
Theme Keyword Thesaurus ISO 19115 Topic Category
Access Constraints Access to the non-attributed parcel linework is via the EPPLViewer 2001 software only. Access to the full parent MetroGIS parcel shapefile dataset is via a licensing agreement with MetroGIS and the seven metropolitan counties which originally produced the data.
Use Constraints For use with EPPLViewer2001 software only.
Contact Person Information Ken Pekarek, EPPL7 Coordinator
Minnesota Land Management Information Center (LMIC)
300 Centennial Building; 658 Cedar Street
St. Paul, Minnesota 55155
Phone: 651-296-2499
FAX: 651-296-3698
E-mail: clearing.house@state.mn.us
Browse Graphic none available
Browse Graphic File Description
Associated Data Sets Metro wide parcel dataset, in shapefile format, with attributes, is available under the licensing requirements imposed by the counties that supplied the source data. For more information, see http://www.datafinder.org/metadata/metrogis_regional_parcels.htm

Parcel data for each of the seven counties is also available individually from each county. Metadata is in the process of being posted at
http://www.datafinder.org/catalog.asp

 
Section 2 Data Quality Information Top of full metadata Top of page
Attribute Accuracy
Logical Consistency In the parent dataset, no attempt was made to edgematch or rubbersheet the seven county files; thus overlaps and gaps existed between counties. In creating the EPPL line version, some attempt was made to better match the county data sets together. This process is described under 'Lineage'. However, the file is still not fully edgematched, and some overlaps and gaps occur.
Completeness See metadata for individual counties.
Horizontal Positional Accuracy See metadata for individual counties.
Lineage 1. PARENT DATA SET: Creation of metro wide parcel data set from individual counties' parcel data sets. (This pilot MetroGIS parcel data set was assembled by staff at Dakota County Survey and Land Information Department )

Data Transfer and Receipt:
- Parcel polygon shapefiles were received from all counties.
- Related attributes were received in the form of dBase files or ASCII text files.

ArcView Processing:
- Shapefiles were projected to UTM Zone 15, NAD 83, meters.
- Parcel polygons that did not contain a valid PIN or defined water, rights of way, or common ownership were eliminated.
- Parcel polygons were summarized by PIN to combine multiple polygons into single, multi-part polygons.
- All attributes except PIN were eliminated at this point and PINs were prefixed with the three digit county FIPS code.
- All parcel shapefiles were combined into a single shapefile.
- No attempt was made to resolve any mismatches in common lines between county parcel data. Shapefiles store each polygon independently, which allows the original parcel geometry, supplied by the counties, to be preserved.

MS Access Processing:
- Parcel shapefile dBase component was imported into Access database.
- Normalized fields were defined in parcel table.
- Individual county attributes were imported into Access database tables.
- PIN field was modified to include FIPS code.
- Update queries were defined and executed to normalize county data and populate combined parcel table.
- Combined table was exported to dBase to replace original dBase component of combined shapefile.

2. DERIVED OR MODIFIED DATA SET: Creation of EPPL7 .dgt version of dataset (linework only - no attribute information) (Land Management Information Center, Minnesota Planning, March, 2001)

Metro region wide parcel shapefile was obtained under license from MetroGIS and the producing counties. The metrowide file was split back into individual county datasets. Two county data sets were adjusted to make them align better with adjacent county parcel linework and with the year 2000 1-meter DOQs. This does not constitute a full edgematching or rubber-sheeting of the data sets, but did improve the metch between adjacent counties. After this step the indivdual county parcels were re-appended, then converted to EPPL7 .dgt line files. No attribute information accompanies the file. Processing for these steps was as follows:

a. Split metro wide parcel shapefile into individual county shapefiles, using ArcView Query command (query by county code) and saving the results as separate shapefiles.

b. Anoka and Hennepin County shapefiles were converted into Arc/Info coverages. These two coverages were then run through Arc/Info TRANSFORM process with a registration tic adjustment. Resultant files were compared with adjacent county parcel data sets and overlayed on orthophoto data. The TRANSFORM process was re-done with different registration tic values until the data sets made a better match with adjacent areas and aerial photos. The Hennepin County mis-registration appeared to result from a misunderstanding of the projection of the original source material. Mis-registration was consistent throughout the file. The Anoka county mis-registration appeared to vary across the file, and the original file was based on coarser source data, so it was not possible to achieve good adjustment. As a result, Anoka County parcel outlines should only be used at coarser scales in the EPPLViewer 2001 program.

c. Transformed coverages for Anoka and Hennepin counties were converted back to shapefiles.

d. The county shapefiles were then converted to EPPL7 .dgt format. The .dgt is a linework format only and does not carry any attribute data.
Source Scale Denominator
 
Section 3 Spatial Data Organization Information Top of full metadata Top of page
Native Data Set Environment EPPL7 .dgt
Geographic Reference for Tabular Data
Spatial Object Type Vector
Vendor Specific Object Types
Tiling Scheme Individual county tiles.
 
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
Altitude Datum Not applicable
Depth Datum Not applicable
UTM Zone Number 15
 
Section 5 Entity and Attribute Information Top of full metadata Top of page
Entity and Attribute Overview No attribute information available
Entity and Attribute Detailed Citation
 
Section 6 Distribution Information Top of full metadata Top of page
Publisher Minnesota Land Management Information Center (LMIC)
Publication Date 07/15/2001
Contact Person Information Ken Pekarek for EPPLviewer
EPPL7 Coordinator
Minnesota Land Management Information Center (LMIC)
300 Centennial Building; 658 Cedar Street
St. Paul, Minnesota 55155
Phone: 651-201-2499
FAX: 651-296-3698
E-mail: clearing.house@state.mn.us
Distributor's Data Set Identifier parc_epp
Distribution Liability State of Minnesota Disclaimer
NOTICE

The Geographic Information System (GIS) Data to which this notice is attached are made available pursuant to the Minnesota Government Data Practices Act (Minnesota Statutes Chapter 13). THE GIS DATA ARE PROVIDED TO YOU AS IS AND WITHOUT ANY WARRANTY AS TO THEIR PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR ANY PARTICULAR PURPOSE. The GIS data were developed by the Land Management Information Center for its own internal purposes. LMIC does not represent or warrant that the GIS Data or data documentation are error-free, complete, current, or accurate. You are responsible for any consequences resulting from your use of the GIS data or your reliance on the GIS Data. You should consult the data documentation for this particular GIS Data to determine the limitations of the GIS Data and the precision with which the GIS data may depict distance, direction, location, or other geographic features.
Transfer Format Name EPPL .dgt file
Transfer Format Version Number
Transfer Size
Ordering Instructions Contact distributor.
Online Linkage none available
 
Section 7 Metadata Reference Information Top of full metadata Top of page
Metadata Date 04/11/2007
Contact Person Information Susanne Maeder,
Minnesota Land Management Information Center (LMIC)
300 Centennial Building; 658 Cedar Street
St. Paul, Minnesota 55155
Phone: 651-201-2488
FAX: 651-296-3698
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: 04/11/2007