1989 Land/Water data for the Upper Mississippi River System

Citation:

Citation Information:

Originator: Upper Midwest Environmental Sciences Center; U.S. Geological Survey
Publication Date: 01/01/2001
Title: 1989 Land/Water data for the Upper Mississippi River System
Geospatial Data Presentation Form: digital GIS data set
Publication Information:

Publication Place: La Crosse, Wisconsin
Publisher: Upper Midwest Enviornmental Sciences Center

Online Linkage: www.umesc.usgs.gov

Description:

Abstract:
The U.S. Geological Survey's Upper Midwest Environmental Sciences Center (UMESC) has created high-resolution land cover/use data sets for the Upper Mississippi River System (UMRS) from 1:15,000-scale color infrared aerial photos collected in 1989. One of the attributes contained in these data sets is a Land/water classification. To make it easier for those individuals who wish to use the land/water information separate from the land water classifications, simplified coverages have been created from those data using a process known as Dissolve.
Purpose: The land/water data sets were created to make it easier for individuals to access the land/water information independent of the complexity and detail contained within the land cover/use data sets.

Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 7/15/1989
Ending Date: 9/15/1989

Status:

Progress: Complete
Maintenance and Update Frequency: As needed

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: -93.43
East Bounding Coordinate: -87.31
North Bounding Coordinate: 45.25
South Bounding Coordinate: 36.79

Keywords:

Theme:

Theme Keyword Thesaurus: None
Theme Keyword: Land
Theme Keyword: Water

Place:

Place Keyword Thesaurus: None
Place Keyword: Mississippi River
Place Keyword: Upper Mississippi River System
Place Keyword: Illinois
Place Keyword: Iowa
Place Keyword: Minnesota
Place Keyword: Missouri
Place Keyword: Wisconsin

Access Constraints: These data are distributed as shapefile format geographic information system (GIS) data sets. The ability to read and use this file format is required.
Use Constraints: None
Point of Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: USGS - Upper Midwest Environmental Sciences Center

Contact Position: Spatial Analysis and Computer Technology Branch
Contact Address:

Address Type: mailing and physical address
Address: U.S. Geological Survey; Upper Midwest Environmental Sciences Center; 2630 Fanta Reed Road;
City: La Crosse
State or Province: Wisconsin
Postal Code: 54603-1223
Country: USA

Contact Voice Telephone: 608-783-6451
Contact Facsimile Telephone: 608-783-6066
Contact Electronic Mail Address: metadata_coordinator@umesc.er.usgs.gov
Hours of Service: 7:30 a.m. to 4:00 p.m. Monday Through Friday

Attribute Accuracy:

Attribute Accuracy Report:
The land/water classification table was created by (1) preparing an all-inclusive list of the land cover/use classes used by UMESC in its land cover/use data sets and storing these data in a lookup table. (2) A land/water attribute field was then added to the lookup table, and each land cover/use class was assigned either a land or water value. (3) The center's chief botanist and several assistants reviewed the lookup table for accuracy.
Logical Consistency Report:
All polygon features are checked for topology using the ARC/INFO software. Each polygon begins and ends at the same point with the node feature. All nodes are checked for error so that there are no dangling features. There are no duplicate lines or polygons. All nodes will snap together and close polygons based on a specified tolerance. If the node is not with the tolerance it is adjusted manually. The tests for logical consistency are performed in ARC/INFO using certain commands.
Completeness Report:
Within the land cover/use data sets, all data that was photo-interpreted is also automated. This includes submergent classes, emergents, grasses, trees and also linear features such as streams and banks. Mississippi Pools 4, 5, 5a, 6, 8, 13, 26, and the Open River study reach were interpreted using a .1-acre minimum mapping unit. The rest of the UMRS was mapped using a 1-acre minimum mapping unit. These data were then joined with a lookup table that contained land/water attributes. Each polygon that was assigned a land cover/use attribute was also assigned a land/water attribute.
Positional Accuracy:

Horizontal Positional Accuracy:

Horizontal Positional Accuracy Report:
The horizontal positional accuracy is tested by visual comparison of the data with hard copy maps and on-screen with existing data sets that cover the same area. The original basemaps onto which the aerial photo overlays were transferred, were 1:15,000-scale enlargements of 1:24,000-scale (24K) U.S. Geological Survey (USGS) quadrangles. As digital orthophoto quadrangles (DOQs) became available these data were used as the registration basemaps. DOQ files are positionally more accurate than the 24K USGS quadrangles, and it is easier to align photo features with a DOQ than it is with the abstract representations found on a standard USGS quadrangle.
Lineage:

Source Information:

Source Citation:

Citation Information:

Originator: Upper Midwest Environmental Sciences Center; U.S. Geological Survey; Long Term Resource Monitoring Program for the Upper Mississippi River System.
Publication Date: 01/01/1991
Title: 1989 Land Cover/Use Data for the Upper Mississippi River System - version 1
Geospatial Data Presentation Form: digital geographic information system database
Publication Information:

Publication Place: La Crosse, Wisconsin
Publisher: Upper Midwest Environmental Sciences Center

Other Citation Details: Available to download via. the UMESC Internet Web Site
Online Linkage: www.umesc.usgs.gov

Source Scale Denominator: 15000
Type of Source Media: color infrared aerial photo transparency
Source Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 7/15/1989
Beginning Time: Unknown
Ending Date: 9/15/1989
Ending Time: Unknown

Source Currentness Reference: ground condition

Source Citation Abbreviation: 1989 LCU Data
Source Contribution: The land/water data set was created by generalizing the land cover/use data.

Process Step:

Process Description: The software program ArcInfo was used to combine adjacent land/water features, then the data were converted into shape files.
Process Date: 8/9/2001
Process Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: USGS - Upper Midwest Environmental Sciences Center

Contact Position: Spatial Analysis and Computer Technology Branch
Contact Address:

Address Type: mailing and physical address
Address: U.S. Geological Survey; Upper Midwest Environmental Sciences Center; 2630 Fanta Reed Road;
City: La Crosse
State or Province: Wisconsin
Postal Code: 54603-1223
Country: USA

Contact Voice Telephone: 608-783-6451
Contact Facsimile Telephone: 608-783-6066
Contact Electronic Mail Address: metadata_coordinator@umesc.er.usgs.gov
Hours of Service: 7:30 a.m. to 4:00 p.m. Monday Through Friday

Direct Spatial Reference Method: Vector

Horizontal Coordinate System Definition:

Planar:

Grid Coordinate System:

Grid Coordinate System Name: Universal Transverse Mercator 1927
Universal Transverse Mercator:

UTM Zone Number: 15
Transverse Mercator:

Scale Factor at Central Meridian: 0.9996
Longitude of Central Meridian: -93
Latitude of Projection Origin: 0
False Easting: 500000
False Northing: 0

Planar Coordinate Information:

Planar Coordinate Encoding Method: Coordinate Pair

Geodetic Model:

Horizontal Datum Name: North American Datum of 1927
Ellipsoid Name: Clarke 1866
Semi-major Axis: 6378206
Denominator of Flattening Ratio: 294.9786982

Detailed Description:

Entity Type:

Entity Type Label: land_water or lw_desc
Entity Type Definition: Land/water attributes
Entity Type Definition Source: Upper Midwest Environmental Sciences Center

Distributor:

Contact Information:

Contact Organization Primary:

Contact Organization: USGS - Upper Midwest Environmental Sciences Center

Contact Position: Spatial Analysis and Computer Technology Branch
Contact Address:

Address Type: mailing and physical address
Address: U.S. Geological Survey; Upper Midwest Environmental Sciences Center; 2630 Fanta Reed Road;
City: La Crosse
State or Province: Wisconsin
Postal Code: 54603-1223
Country: USA

Contact Voice Telephone: 608-783-6451
Contact Facsimile Telephone: 608-783-6066
Contact Electronic Mail Address: metadata_coordinator@umesc.er.usgs.gov
Hours of Service: 7:30 a.m. to 4:00 p.m. Monday Through Friday

Distribution Liability:
Although these data have been processed successfully on a computer system at the U.S. Geological Survey, 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 these data are directly acquired from a U.S. Geological Survey server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Available Time Period:

Time Period Information:

Single Date/Time:

Calendar Date: 8/15/1975

Metadata Date: 9/8/2001
Metadata Review Date: 9/26/2005
Metadata Future Review Date:
Metadata Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: USGS - Upper Midwest Environmental Sciences Center

Contact Position: Spatial Analysis and Computer Technology Branch
Contact Address:

Address Type: mailing and physical address
Address: U.S. Geological Survey; Upper Midwest Environmental Sciences Center; 2630 Fanta Reed Road;
City: La Crosse
State or Province: Wisconsin
Postal Code: 54603-1223
Country: USA

Contact Voice Telephone: 608-783-6451
Contact Facsimile Telephone: 608-783-6066
Contact Electronic Mail Address: metadata_coordinator@umesc.er.usgs.gov
Hours of Service: 7:30 a.m. to 4:00 p.m. Monday Through Friday

Metadata Standard Name: NBII Content Standard for National Biological Information Infrastructure Metadata
Metadata Standard Version: December 1995
Metadata Access Constraints: none
Metadata Use Constraints: none