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Shoreline Polygons Great Lakes 2006

Identification Information

Citation
Title
Shoreline Polygons Great Lakes 2006
Originator
American Geographical Society Library – UWM Libraries
Publication Date
2007-04-17
Identifier
https://geodiscovery.uwm.edu/catalog/ark:-77981-gmgsgq6r20w
Geospatial Data Presentation Form
mapDigital
Abstract
This polygon data layer represents shorelines for the Great Lakes in 2006. The dataset was originally published by the American Geographical Society Library in 2007 using data from the North American Atlas.[A joint venture involving the National Atlas programs in Canada (Natural Resources Canada), Mexico (Instituto Nacional de Estadística Geografía e Informática), and the United States (U.S. Geological Survey), as well as the North American Commission for Environmental Co-operation, has led to the release (June 2004) of several new products: an updated paper map of North America, and its associated geospatial data sets and their metadata. These data sets are available online from each of the partner countries for download. This data has been revised and re-released in 2006. The North American Atlas data are standardized geospatial data sets at 1:10,000,000 scale. A variety of basic data layers (e.g. roads, railroads, populated places, political boundaries, hydrography, bathymetry, sea ice and glaciers) have been integrated so that their relative positions are correct. This collection of data sets forms a base with which other North American thematic data may be integrated. Any data outside of Canada, Mexico, and the United States of America included in the North American Atlas data sets is strictly to complete the context of the data.The North American Atlas - Hydrography data set shows the coastline, linear hydrographic features, and area hydrographic features in North America. This data has been revised and re-released in 2006.This data set was produced using digital files supplied by Natural Resources Canada, Instituto Nacional e Estadística Geografía e Informática, and the U.S. Geological Survey.]
Purpose
This layer is intended for reference and mapping purposes and may be used for basic applications such as viewing, querying, and map output production or to provide a basemap to support graphical overlays and analysis with other spatial data.
Supplemental Information
AGSL staff supplemented original metadata. For official metadata please see hydrographyenglish.txt. [The Commission for Environmental Cooperation (CEC) is an international organization created by Canada, Mexico, and the United States of America under the North American Agreement on Environmental Cooperation (NAAEC). The CEC was established to address regional environmental concerns, help prevent potential trade and environmental conflicts, and to promote the effective enforcement of environmental law. The Agreement complements the environmental provisions of the North American Free Trade Agreement (NAFTA).]
Temporal Extent
Bounding Box
West
-92.250801
East
-76.059913
North
48.999947
South
41.382131
ISO Topic Category
inlandWaters
Place Keyword
Great Lakes
United States
Canada
Place Keyword Thesaurus
GeoNames
Theme Keyword
Polygon
Theme Keyword Thesaurus
FGDC
Theme Keyword
Great Lakes (North America)
Shorelines
Theme Keyword Thesaurus
LCSH
Resource Constraints
Use Limitation
Please see the UWM Libraries statement on Copyright and Digital Collections.[All data for Canada and other areas outside of Mexico and the United States of America are covered by the Geogratis User Agreement for Digital Data; see http://geogratis.gc.ca/e_license.html.No use constraints are applied to data for Mexico and the United States of America. Acknowledgment of the North American Atlas, Instituto Nacional de Estadística Geografía e Informática, Natural Resources Canada, and (or) the U.S. Geological Survey would be appreciated in products derived from these data.]
Legal Constraints
Use Limitation
Although this data is being distributed by the American Geographical Society Library at the University of Wisconsin-Milwaukee Libraries, no warranty expressed or implied is made by the University as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the University in the use of this data, or related materials. [Although these data have been processed successfully on computer systems at Natural Resources Canada, Instituto Nacional de Estadística Geografía e Informática, and the U.S. Geological Survey, no warranty expressed or implied is made by these agencies regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by these agencies in the use of these data.]
Other Restrictions
None
Status
completed
Maintenance and Update Frequency
asNeeded
Language
eng
Credit
American Geographical Society Library North American Atlas
Point of Contact
Contact
American Geographical Society Library – UWM Libraries
Position Name
GIS Staff
Delivery Point
2311 E Hartord Ave
City
Milwaukee
Administrative Area
WI
Postal Code
53211
Country
US
Email
gisdata@uwm.edu
Phone
(414)-229-6282

Spatial Reference Information

Reference System Identifier
Code
4326
Code Space
EPSG
Version
9.6.3

Data Quality Information

Quantitative Attribute Accuracy Report
Result
Quantitative Attribute Accuracy Report
Result
Completeness Commission
Result
Lineage
Process Step
Description
Changed name of file from great_lakes_poly.shp to GreatLakes_ShorelinePolygons_2006.shp.
Process Step
Description
[For the U.S. portion of the map, linework from the 1:7,500,000 Hydrography file was generalized and fitted to the coastline by cartographers at the National Atlas of the United States. The attribute for the country was added to the data.]
Process Date
2003-01-01T00:00:00
Process Step
Description
[For the Canadian portion of the map, linework from the 1:7,500,000 National Atlas Reference Map Series was fitted to the coastline by cartographers at the Atlas of Canada. The attribute for the country was added to the data.]
Process Date
2003-01-01T00:00:00
Process Step
Description
[Linework from the 1:4,000,000 Topographical Dataset for Mexico was selected, generalized and fitted to the coastline by cartographers at the Atlas of Canada. The attribute for the country was added to the data.]
Process Date
2003-01-01T00:00:00
Process Step
Description
[Drainage needed to extend features to the map extent was compiled from the 1:10,000,000 National Atlas of Canada Reference Map Series data set. Linework was fitted to the coastline. The attribute for the country was added to the data.]
Process Date
2003-01-01T00:00:00
Process Step
Description
[Linework was cartographically adjusted along country boundaries to ensure correct connection of adjoining hydrographic features.]
Process Date
2004-01-01T00:00:00
Process Step
Description
[Because the linework came from many different sources and scales, a final cartographic review was done to the full hydrographic file to ensure cartographic compatibility at 1:10,000,000 scale. A quality control of the linear hydrography data was done in order to ensure topological consistency within each country and across country boundaries. Polygon topology was created so the area hydrography features could be shown as polygons and an area fill could be used for cartographic representation. Each country then performed a final cartographic check to verify the selection and position of the linework. The attributes were also verified.]
Process Date
2004-01-01T00:00:00
Process Step
Description
[Using the original 1:10,000,000 hydro files (NA_Hydro04) the USA hydro feature lines (lakes and rivers) were refined using the 1:2,000,000 hydro data files (HY0301) as a guide. Some spatial features were added and others were corrected. Names were taken from the 1:2,000,000 data (HY0301), then researched and tagged to the geometry based on 1:100,000 scale base maps. For Alaska, the names were taken from the 1:250,000 scale sheets.]
Process Date
2004-01-01T00:00:00
Process Step
Description
[Using the original 1:10,000,000 hydro files (NA_Hydro04) the Mexican hydro feature lines (lakes and rivers) were tagged with names taken from the Mexico source data. ]
Process Date
2004-01-01T00:00:00
Process Step
Description
[Using the original 1:10,000,000 hydro files (NA_Hydro04) which had the names for the hydro features in Mexico added, the data for the USA was replaced with the revised and named American data. Hydro features were adjusted along the border in Canada to match the changes in the USA. Then the Canadian hydro feature lines (lakes and rivers) were tagged with names taken from the 1:1,000,000 National Scale Frameworks Hydrology file (NSFH_2003), the 1:10,000,000 paper map and the 1:7,500,000 reference map data. The quality control of the data was performed in order to check the attributes and geometry, and to make corrections before release.]
Process Date
2006-01-01T00:00:00
Process Step
Description
AGSL staff exported the Great Lakes water features from the original dataset Major Lakes in North America created by the North American Atlas (hydro_p.shp) and saved as hydro_p_great_lakes.shp. The shapefile was reprojected to NAD27 and saved as great_lakes_poly.shp.
Process Date
2007-04-16T00:00:00

Distribution Information

Format Name
Shapefile
Format Version
1.0
Distributor
University of Wisconsin-Milwaukee
Online Access
Protocol
Name

Spatial Representation Information

Vector
Topology Level
geometryOnly
Vector Object Type
composite
Vector Object Count
14

Metadata Reference Information

Hierarchy Level
dataset
Metadata File Identifier
ark:/77981/gmgsgq6r20w
Dataset URI
https://geodata.uwm.edu/public/gmgsgq6r20w/GreatLakes_ShorelinePolygons_2006.zip
Metadata Point of Contact
Name
American Geographical Society Library – UWM Libraries
Position Name
GIS Staff
Delivery Point
2311 E Hartord Ave
City
Milwaukee
Administrative Area
WI
Postal Code
53211
Country
US
Email
gisdata@uwm.edu
Phone
(414)-229-6282
Metadata Date Stamp
2023-10-23
Metadata Standard Name
ISO 19139 Geographic Information - Metadata - Implementation Specification
Metadata Standard Version
2007
Character Set
utf8
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