Metadata: Identification_Information: Citation: Citation_Information: Originator: Government of Canada, Natural Resources Canada, Canada Centre for Remote Sensing, The Atlas of Canada Originator: Instituto Nacional de Estadística Geografía e Informática Originator: U.S. Geological Survey Publication_Date: 200406 Title: North American Atlas - Sea Ice Geospatial_Data_Presentation_Form: Vector digital data Publication_Information: Publication_Place: Ottawa, Ontario, Canada Publisher: Government of Canada Online_Linkage: http://geogratis.cgdi.gc.ca/download/frameworkdata/North_America_Atlas10M/seaice/ Publication_Information: Publication_Place: Aguascalientes, Aguascalientes, Mexico Publisher: Instituto Nacional de Estadística, Geografía e Informática (INEGI) Online_Linkage: http://antares.inegi.gob.mx/atlas_norteamerica/ Publication_Information: Publication_Place: Reston, Virginia, USA Publisher: U.S. Geological Survey Online_Linkage: http://nationalatlas.gov/atlasftp.html Description: Abstract: 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 both for visualization and download. 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 – Sea Ice data set shows the approximate extent of marine areas in the Arctic covered by permanent polar ice. The data originated from the Canadian Ice Service and was used in the 1:6,000,000 National Atlas of Canada Reference Map Series. It is represented by polygons showing the average minimum ice limit over a 30 year period, 1969-1999. Purpose: The North American Atlas data are intended for geographic display and analysis at the national and continental level. The data should be displayed and analyzed at scales appropriate for 1:10,000,000-scale data. No responsibility is assumed by Natural Resources Canada, Instituto Nacional de Estadística Geografía e Informática, or the U.S. Geological Survey in the use of these data. Supplemental_Information: 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). Further information on the CEC is available from http://www.cec.org/ or from >Commission for Environmental Cooperation >393, rue St-Jacques Ouest >Bureau 200 >Montréal (Québec) >H2Y 1N9 Canada > >Telephone: 514 350 4300 >Facsimile: 514 350 4314 >Electronic mail: info@ccemtl.org > All North American Atlas data sets are available in four data formats: Arc/INFO Export format (e00), ArcView Shapefile, Geography Markup Language (GML) and Spatial Data Transfer Standard (SDTS). Although these data are distributed in geographic coordinates, the North American Atlas Map uses a Lambert Azimuthal Equal Area projection. The following parameters were used for the map: >Longitude_of_Projection_Center: -100.00 >Latitude_of_Projection_Center: 45.00 >False_Easting (metres): 0.0 >False_Northing (metres): 0.0 >Semi-major_Axis: 6370997.0 >Denominator_of_Flattening_Ratio: 1.0 >Ellipsoid_Name: Sphere >Units: metres Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 200406 Currentness_Reference: Publication date Status: Progress: Complete Maintenance_and_Update_Frequency: Irregular Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: 152.0 East_Bounding_Coordinate: 4.0 North_Bounding_Coordinate: 90.0 South_Bounding_Coordinate: -5.0 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Sea Ice Theme_Keyword: Ice Place: Place_Keyword_Thesaurus: None Place_Keyword: Mid-latitude Place_Keyword: Western Hemisphere Place_Keyword: Northern Hemisphere Place_Keyword: North America Place_Keyword: NAFTA Place_Keyword: North America Free Trade Agreement Place_Keyword: Canada Place_Keyword: Mexico Place_Keyword: United States Access_Constraints: None Use_Constraints: 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.cgdi.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. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Government of Canada, Natural Resources Canada, Canada Centre for Remote Sensing, The Atlas of Canada Contact_Position: Atlas of Canada Client Services Contact_Address: Address_Type: Mailing address Address: Room 650-615 Booth Street City: Ottawa State_or_Province: Ontario Country: Canada Postal_Code: K1A 0E9 Contact_Facsimile_Telephone: +01 613 947 2410 Contact_Electronic_Mail_Address: info@atlas.gc.ca Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jorge Padilla Noriega Contact_Organization: Dirección General de Geografía, INEGI Contact_Address: Address_Type: Mailing address Address: Av Heroe de Nacozari Sur 2301 Address: Fracc Jardines del Parque City: Aguascalientes State_or_Province: Aguascalientes Country: Mexico Postal_Code: 20270 Contact_Voice_Telephone: 52 449 910 5349 Contact_Electronic_Mail_Address: jorge.padilla@inegi.gob.mx Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: John Hutchinson Contact_Address: Address_Type: Mailing address Address: USGS EROS Data Center City: Sioux Falls State_or_Province: South Dakota Country: USA Postal_Code: 57198-0001 Contact_Voice_Telephone: 605 594 6049 Contact_Facsimile_Telephone: 605 594 6529 Contact_Electronic_Mail_Address: atlasmail@usgs.gov Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Where possible, attribute data were quality controlled by creating symbolized digital displays or hard copy plots, which were visually verified with digital or hard copy reference data. Attribute data that could not be verified in such a manner were interactively queried to check for anomalies such as duplication of data in fields requiring unique values and incorrect feature coding. Data for areas outside of Canada, Mexico, and the United States of America are only provided for context; Natural Resources Canada, Instituto Nacional de Estadística Geografía e Informática, and the U.S. Geological Survey assume no responsibility for the completeness, accuracy, or presentation of this data. Logical_Consistency_Report: Topology was built and a quality control of the sea ice polygon data was done in order to ensure topological polygon structure. Completeness_Report: This data set includes the average minimum limit of sea ice over a 30 year period, 1969-1999, for all of North America and the Arctic as shown at 1:10,000,000 scale. The data completeness reflects the content of the source data, the integration done by the cartographers, and the quality control of the content performed by each country. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Positional accuracy of the data is unknown. Positions are dependent on the accuracy of the source data and on the result of the generalization and integration processes. Data for areas outside of Canada, Mexico, and the United States of America are only provided for context; Natural Resources Canada, Instituto Nacional de Estadística Geografía e Informática, and the U.S. Geological Survey assume no responsibility for the completeness, accuracy, or presentation of this data. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Government of Canada, Natural Resources Canada, Canada Centre for Remote Sensing, The Atlas of Canada Publication_Date: 2002 Title: 1:6,000,000 National Atlas of Canada Reference Map Series – Sea Ice Geospatial_Data_Presentation_Form: Vector digital data Publication_Information: Publication_Place: Ottawa, Ontario, Canada Publisher: Government of Canada, Natural Resources Canada, Canada Centre for Remote Sensing, The Atlas of Canada Source_Scale_Denominator: 6,000,000 Type_of_Source_Media: Online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Source_Currentness_Reference: Ground condition Source_Citation_Abbreviation: 6M CA Sea Ice Source_Contribution: Spatial and attribute information Source_Information: Source_Citation: Citation_Information: Originator: Government of Canada, Natural Resources Canada, Canada Centre for Remote Sensing, The Atlas of Canada Originator: Instituto Nacional de Estadística Geografía e Informática Originator: U.S. Geological Survey Publication_Date: 200406 Title: North American Atlas – Hydrography Geospatial_Data_Presentation_Form: Vector digital data Publication_Information: Publication_Place: Ottawa, Ontario, Canada Publisher: Government of Canada, Natural Resources Canada, Canada Centre for Remote Sensing, The Atlas of Canada Publication_Information: Publication_Place: Aguascalientes, Aguascalientes, Mexico Publisher: Instituto Nacional de Estadística, Geografía e Informática (INEGI) Publication_Information: Publication_Place: Reston, Virginia, USA Publisher: U.S. Geological Survey Source_Scale_Denominator: 10,000,000 Type_of_Source_Media: Online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2004 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: NAA Hydro Source_Contribution: Spatial information Process_Step: Process_Description: Linework from the 1:6,000,000 Atlas of Canada reference map was projected and fitted to the 1:10,000,000 North American Atlas – Hydrography. Cartographers at The Atlas of Canada did the integration and generalization of the data, maintaining a cartographic representation suitable for 1:10,000,000 scale. Polygon topology was created so the sea ice could be shown as polygons and an area fill could be used for cartographic representation. Quality control of the cartographic representation was performed by each country. Source_Used_Citation_Abbreviation: 6M CA Sea Ice Source_Used_Citation_Abbreviation: NAA Hydro Process_Date: 2004 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 81 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Sea Ice Entity_Type_Definition: Marine areas covered by permanent ice. The area shown represents the average minimum ice limit over a 30 year period, 1969-1999. Entity_Type_Definition_Source: North American Atlas GIS Group Attribute: Attribute_Label: UIDENT Attribute_Definition: The unique identifier. A unique number that is assigned to each feature in the North American Atlas data. The last two digits of the identifier are a suffix indicating the map layer. Attribute_Definition_Source: North American Atlas GIS Group Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 110 Range_Domain_Maximum: 8110 Attribute: Attribute_Label: Type Attribute_Definition: Whether the area represents sea ice or islands. Attribute_Definition_Source: North American Atlas GIS Group Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 28 Enumerated_Domain_Value_Definition: The approximate extent of permanent polar ice. Enumerated_Domain_Value_Definition_Source: North American Atlas GIS Group Enumerated_Domain: Enumerated_Domain_Value: 9999 Enumerated_Domain_Value_Definition: An island fully surrounded by permanent polar ice. Enumerated_Domain_Value_Definition_Source: North American Atlas GIS Group Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Government of Canada, Natural Resources Canada, Canada Centre for Remote Sensing, GeoAccess Division Contact_Address: Address_Type: Mailing address Address: Room 650-615 Booth Street City: Ottawa State_or_Province: Ontario Country: Canada Postal_Code: K1A 0E9 Contact_Facsimile_Telephone: +01 613 947 2410 Contact_Electronic_Mail_Address: info@GeoGratis.cgdi.gc.ca Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: INEGI Contact_Person: Jose Luis Ornelas de Anda Contact_Address: Address_Type: Mailing address Address: Avenida Héroe de Nacozari Sur 2301 Address: Fraccionamiento Jardines del Parque City: Aguascalientes State_or_Province: Aguascalientes Country: Mexico Postal_Code: 20270 Contact_Voice_Telephone: 52 449 910 5300 ext 5856 Contact_Electronic_Mail_Address: jornelas@antares.inegi.gob.mx Hours_of_Service: 8:30 - 16:00 (CST) Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: EROS Data Center, U.S. Geological Survey Contact_Address: Address_Type: Mailing address Address: 47914 252nd Street City: Sioux Falls State_or_Province: South Dakota Country: USA Postal_Code: 57198-0001 Contact_Voice_Telephone: 800 252 4547 Contact_Voice_Telephone: 605 594 6151 Contact_TDD/TTY_Telephone: 605 594 6933 Contact_Facsimile_Telephone: 605 594 6589 Contact_Electronic_Mail_Address: custserv@usgs.gov Hours_of_Service: Monday through Friday, 8:00 a.m. to 4:00 p.m., Central Time Distribution_Liability: 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://geogratis.cgdi.gc.ca/download/frameworkdata/North_America_Atlas10M/seaice/ Network_Resource_Name: http://antares.inegi.gob.mx/atlas_norteamerica/ Network_Resource_Name: http://nationalatlas.gov/atlasftp.html Digital_Form: Digital_Transfer_Information: Format_Name: GML Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://geogratis.cgdi.gc.ca/download/frameworkdata/North_America_Atlas10M/seaice/ Network_Resource_Name: http://antares.inegi.gob.mx/atlas_norteamerica/ Network_Resource_Name: http://nationalatlas.gov/atlasftp.html Digital_Form: Digital_Transfer_Information: Format_Name: ESRI Shapefile Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://geogratis.cgdi.gc.ca/download/frameworkdata/North_America_Atlas10M/seaice/ Network_Resource_Name: http://antares.inegi.gob.mx/atlas_norteamerica/ Network_Resource_Name: http://nationalatlas.gov/atlasftp.html Digital_Form: Digital_Transfer_Information: Format_Name: SDTS Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://geogratis.cgdi.gc.ca/download/frameworkdata/North_America_Atlas10M/seaice/ Network_Resource_Name: http://antares.inegi.gob.mx/atlas_norteamerica/ Network_Resource_Name: http://nationalatlas.gov/atlasftp.html Fees: Gratuit-Free Metadata_Reference_Information: Metadata_Date: 20040709 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Government of Canada, Natural Resources Canada, Canada Centre for Remote Sensing, The Atlas of Canada Contact_Position: Atlas of Canada Client Services Contact_Address: Address_Type: Mailing address Address: Room 650-615 Booth Street City: Ottawa State_or_Province: Ontario Country: Canada Postal_Code: K1A 0E9 Contact_Facsimile_Telephone: +01 613 947 2410 Contact_Electronic_Mail_Address: info@atlas.gc.ca Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Dirección General de Geografía, INEGI Contact_Position: Administrador de Metadatos Geográficos Contact_Address: Address_Type: Mailing address Address: Av Heroe de Nacozari Sur 2301 Address: Fracc Jardines del Parque City: Aguascalientes State_or_Province: Aguascalientes Country: Mexico Postal_Code: 20270 Contact_Voice_Telephone: 52 449 910 53 00 ext 5856 Contact_Electronic_Mail_Address: rarrioja@dgg.inegi.gob.mx Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peg Rawson Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Mailing address Address: 561 National Center City: Reston State_or_Province: Virginia Country: USA Postal_Code: 20192 Contact_Voice_Telephone: 703 648 4183 Contact_Electronic_Mail_Address: atlasmail@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None