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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 
Cell Height 
Latitude Resolution 
Longitude Resolution 
UTM Zone Number  15 
SPCS Zone Identifier 
County Coordinate Zone Identifier 
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