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University of Minnesota-Duluth Geology Department; MN Geological Survey, MN DNR

Geomorphology of Minnesota

This page last update: 07/23/2001 3:35:39 PM
metadata created using Minnesota Geographic Metadata Guidelines .

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
Originator | University of Minnesota-Duluth Geology Department; MN Geological Survey, MN DNR
Title | Geomorphology of Minnesota
System Name | landfne2
Abstract | 1:100,000 scale geomorphology data describing a wide variety of conditions related to surficial geology within a hierarchical classification scheme that was devised for use within Minnesota.
Purpose | To serve as an essential information source in the development of level 4 Ecological Classification System (ECS) delineations (Land Type Associations).
Time Period of Content Date | 1997
Currentness Reference | Data were derived from a wide variety of image and hardcopy data sources of varying vintages.
Progress | Complete
Maintenance and Update Frequency | as needed
Spatial Extent of Data | Statewide
Bounding Coordinates | E = -89 W = -97.5 N = 49.5 S = 43
Place Keywords | Minnesota
Theme Keywords | geomorphology, surficial geology, landforms
Theme Keyword Thesaurus | None
Access Constraints | None
Use Constraints | None
Contact Person Information | Tim Loesch, GIS Application Coordinator DNR-MIS 500 Lafayette Road St. Paul, MN 55155-4011 Phone: (651) 296-0654 FAX: (651) 297-4946 E-mail: tim.loesch@dnr.state.mn.us
Browse Graphic File Name | landfne2_sam.gif
Browse Graphic File Description |
Associated Data Sets | landfln2 - contains a variety of cartographic symbols created using Autocad such as text leader lines, flow direction arrows, drumlins, lineations etc.
Section 2 | Data Quality Information - - - - - - top
Attribute Accuracy | The data were scrubbed for validity of codes and code combinations. Source materials were reviewed during the initial conversion process from Autocad to ARC/INFO for completeness and accuracy.
Logical Consistency | Data are topolocially correct using ARC/INFO 7.0.3. All polygons are closed and lines intersect where intended.
Completeness | Statewide coverage is available
Horizontal Positional Accuracy | unknown
Vertical Positional Accuracy | not applicable
Lineage | This data set contains information derived from NHAP air photos (1:80,000), USGS 1:100,000 and 1:24,000 scale topographic maps and from a variety of source products related to surface geology. The data were developed by two separate parties, each under contract with the Minnesota Department of Natural Resources (DNR). The northern half of the state, delineated by latitude 96 degrees (except for the Grantsburg (q3142) and Lake Minnewaska (q3118) 100K sheets), were developed under the direction of Dr. Howard Mooers, at the Department of Geology, University of Minnesota-Duluth (UMD). All of the data south of this boundary were developed by the Minnesota Geological Survey (MGS) in St. Paul. The UMD-developed data were developed almost exclusively through review of existing map sources, especially topographic expression as a basis for delineating landforms. This part of the effort did not include a field survey component. The data were mapped to the USGS 1:100,000 scale base (sheets published in 1/2 by 1 degree blocks). These data were originally digitized in AutoCAD and later converted and processed in ARC/INFO. DNR conducted fairly extensive manual and automated data reviews during this process in ensure consistency in the product. The MGS data were also developed using the USGS 1:100,000 scale base from similar sources. However, in performing their work, MGS incorporated a variety of other data sources, including some that relied on field survey-verification of interpretations. The MGS work was performed entirely in ARC/INFO. DNR was the principal party responsible for the development and maintenance of a standard database design and valid codes lists, and coordinating the boundary reconciliation between the two mapping efforts. Once complete, all quads were edgematched and then merged into a single statewide coverage. This coverage underwent extensive data scrubbing to locate all errors across quad boundaries and also to verify non-valid geomorphic codes and code combinations. Corrections were made where necessary. The coverage was then projected to UTM Zone 15, NAD83, unshifted coordinates and broken into 100k tiles based on a mathematically defined 100k tile coverage. A county-tiled version of the layer has also been developed and is in extensive distribution.
Source Scale Denominator | 100
Section 3 | Spatial Data Organization Information - - - - - - top
Native Data Set Environment | ARC/INFO 7.x
Geographic Reference for Tabular Data | None
Spatial Object Type | vector
Vendor Specific Object Types | Polygon, Line, Anno
Tiling Scheme | q100k, county
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 | Polygon features attributized for geomorphic association; glacial phase, ice margin association or phase; general topographic expression; sedimentary association/rock type; qualifier. Line features denoting polygon feature boundary types
Entity and Attribute Detailed Citation HTML Table | Geomorphology of Minnesota --LANDFNE2.PAT-- GEOMORPH: Full landform code, which is a combination of Glacial Association, Association Phase, Topographic Expression, Sedimentary Association and any qualifiers. GEO_ASSOC: Geomorphic Association PHASE: Glacial phase, ice margin association or age. TOPO: General Topographic Expression SED_ASSOC: Sedimentary Association / Rock Type QUAL: Additional Information or Qualifiers. A landform may have more than one qualifier. All qualifiers are stored in this item and multiple qualifiers are separated by commas. All qualifiers are lower case. SOURCE: Field that store information on the party responsible for delineating and/or assigining attributes to the feature. --LANDFNE2.AAT-- LINE_CODE: This item contains values designed to store the original values as digitized in Autocad. As Autocad does not support topology or attributing, codes were assigned to linework to help identify what types of landforms the polygon features represented. DESC: This item stores descriptions of line values based on a collapsed classification of the LINE_CODE items. LINE_CODES that were included in each of the classes are indicated in parenthesis.
Section 6 | Distribution Information - - - - - - top
Publisher | Minnesota DNR - MIS Bureau
Publication Date | 1/23/1998
Contact Person Information | Robert Maki, GIS Database Coordinator Minnesota DNR 500 Lafayette Road, Box 11 St. Paul, MN 55155 Phone: (651) 297-2329 FAX: (651) 297-4946 E-mail: robert.maki@dnr.state.mn.us
Distributor's Data Set Identifier | landfne2
Distribution Liability | None stated
Transfer Format Name | 7.1.2
Transfer Format Version Number | ARC/INFO
Transfer Size | 29
Ordering Instructions | Contact above Person
Online Linkage | DNR Data Deli
Section 7 | Metadata Reference Information - - - - - - top
Metadata Date | 3/29/1999
Contact Person Information | Robert Maki, GIS Database Coordinator Minnesota DNR - MIS Bureau 500 Lafayette Road Saint Paul, MN 55155 Phone: (651) 297-2329 FAX: (651) 297-4946 E-mail: robert.maki@dnr.state.mn.us
Metadata Standard Name | Minnesota Geographic Metadata Guidelines
Metadata Standard Version | 1.1
Metadata Standard Online Linkage | http://www.lmic.state.mn.us/gc/stds/metadata.htm