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CanVec
001N10
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
Identification Information
Citation:
Citation Information:
Originator:
Government of Canada, Natural Resources Canada, Earth Sciences
Sector, Mapping Services Branch, Centre for Topographic Information - Sherbrooke
Publication Date:
2008-04-15
Title:
001N10
Edition:
2.0
Geospatial Data Presentation Form:
vector digital data
Series Information:
Series Name:
CanVec
Issue Identification:
1.0
Publication Information:
Publication Place:
Sherbrooke, Quebec, Canada
Publisher:
Government of Canada, Natural Resources Canada, Earth Sciences
Sector, Mapping Services Branch, Centre for Topographic Information - Sherbrooke
Online Linkage:
http://www.geogratis.gc.ca
Description:
Abstract:
CanVec digital topographical dataset of an area represented according
to the National Topographic System (NTS).
Purpose:
CanVec aims to provide a standardized and up to date representation of
topographical phenomena for the entire Canadian landmass.
Supplemental Information:
This product is subject to Discrepancies processing provided by the
Centre for Topographic Information from Natural Resources Canada. A discrepancy
is defined as any deviation from the product's Standards and Specifications. To
explore the status of discrepancies related this dataset, see the Discrepancies
Web Site from the Centre for Topographic Information
(http://www.ctis.nrcan.gc.ca/cit/servlet/CIT/site_id=01&page_id=1-005-010.html).
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date:
1985
Ending Date:
2007-05
Currentness Reference:
ground condition
Status:
Progress:
Complete
Maintenance and Update Frequency:
As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate:
-53
East Bounding Coordinate:
-52.5
North Bounding Coordinate:
47.75
South Bounding Coordinate:
47.5
Keywords:
Theme:
Theme Keyword Thesaurus:
GCMD
Theme Keyword:
Earth Science > Human Dimensions > Infrastructure > Buildings
Theme Keyword:
Earth Science > Human Dimensions > Infrastructure > Communications
Theme Keyword:
Earth Science > Land Surface > Topography > Contours
Theme Keyword:
Earth Science > Human Dimensions > Infrastructure > Cultural
Features
Theme Keyword:
Earth Science > Human Dimensions > Infrastructure > Electricity
Theme Keyword:
Earth Science > Land Surface > Topography > Terrain Elevation
Theme Keyword:
Earth Science > Land Surface > Land Use/Land Cover
Theme Keyword:
Earth Science > Land Surface > Topography > Landforms
Theme Keyword:
Earth Science > Human Dimensions > Infrastructure > Pipelines
Theme Keyword:
Earth Science > Land Surface > Topography > Topographical Relief
Theme Keyword:
Earth Science > Human Dimensions > Infrastructure > Transportation
Theme Keyword:
Earth Science > Biosphere > Vegetation > Vegetation Cover
Theme Keyword:
Earth Science > Hydrosphere > Surface Water > Wetlands
Theme Keyword:
Administratives Boundaries
Theme Keyword:
Buildings and Structures
Theme Keyword:
Energy
Theme Keyword:
Hydrography
Theme Keyword:
Industrial and Commercial Areas
Theme Keyword:
Places of Interest
Theme Keyword:
Relief and Landforms
Theme Keyword:
Toponymy/Place Names
Theme Keyword:
Water Saturated Soils
Theme Keyword:
Earth Science > Human Dimensions > Boundaries > Administrative
Divisions
Place:
Place Keyword Thesaurus:
GCMD
Place Keyword:
Continent > North America > Canada > Newfoundland and Labrador
Place Keyword:
ST. JOHN'S
Place Keyword:
001N10
Access Constraints:
None
Use Constraints:
Data are subject to the GeoGratis Licence Agreement for Unrestricted Use of
Digital Data.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization:
Centre for Topographic Information - Sherbrooke
Contact Person:
Customer Support Group
Contact Address:
Address Type:
mailing and physical
Address:
2144, King Street West, Suite 010
City:
Sherbrooke
State or Province:
Quebec
Postal Code:
J1J 2E8
Country:
Canada
Contact Voice Telephone:
+01-819-564-4857 / 1-800-661-2638 (Canada and USA)
Contact Facsimile Telephone:
+01-819-564-5698
Contact Electronic Mail Address:
geogi...@nrcan.gc.ca
Hours of Service:
8:30 AM to 12:00 PM and from 1:00 PM to 4:30 PM (Eastern Time)
Return to the top
Data Quality Information
Logical Consistency Report:
- Conceptual Consistency
The rules of the CanVec conceptual schema are all recorded and validated in
the source database containing the CanVec product. This approach ensures the
conceptual consistency between the conceptual schema and the CanVec product.
- Domain Consistency
The domain of values included in the Feature catalogue are all recorded and
validated in the source database containing the CanVec product. This approach
ensures the domain consistency between the Feature catalogue and the CanVec
product.
- Format Consistency
The use of well-established commercial software to generate distribution
formats ensures format consistency for CanVec product distribution.
- Topological Consistency
Topological relationships between (and within) entities are all recorded
and validated in the source database for each CanVec dataset. This approach
ensures topological consistency between the Feature catalogue and the CanVec
product.
Completeness Report:
- Commission
The data quality assessment (including completeness and thematic accuracy)
is directly performed during the data production process. The validation method
applied depends on the data source used. CanVec data come from 2 different
sources: GeoBase initiative (ex: National Road Network (NRN) data) and Natural
Resources Canada digital topographic data.
For GeoBase initiative data, data quality is ensured by the producer (and
partner). The validation mechanism used may vary from one partner to another.
For Natural Resources Canada data, during data inspection, datasets are
produced into distinct batches. A few datasets are selected from each batch and
inspected in order to check their contents and compare them to a data source
used in production or another independent source. If the percentage of error
detected is less than 5 %, then all datasets in the batch are normally
considered acceptable.
- Omission
The methodology describe to evaluate the "Commission" is also applied to
verify the omissions within the CanVec product.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report:
The CanVec product comes from the Geospatial Database (GDB) which
is built from multiple data sources. The dataset horizontal positional accuracy
assessment is related to these data sources. However, the overall dataset
horizontal positional accuracy cannot be assessed. The maximum and the minimum
horizontal accuracy values extracted from all sources in the dataset are
provided when available.
Quantitative Horizontal Positional Accuracy Assessment:
Horizontal Positional Accuracy Value:
1
Horizontal Positional Accuracy Explanation:
Minimum horizontal positional accuracy of the data source in
meters.
Quantitative Horizontal Positional Accuracy Assessment:
Horizontal Positional Accuracy Value:
21
Horizontal Positional Accuracy Explanation:
Maximum horizontal positional accuracy of the data source in
meters.
Vertical Positional Accuracy:
Vertical Positional Accuracy Report:
The CanVec product comes from the Geospatial Database (BDG) which
is built from multiple data sources. The dataset vertical positional accuracy
assessment is related to these data sources. However, the overall dataset
vertical positional accuracy cannot be assessed. The maximum and the minimum
vertical accuracy values extracted from all sources in the dataset are provided
when available.
Quantitative Vertical Positional Accuracy Assessment:
Vertical Positional Accuracy Value:
10
Vertical Positional Accuracy Explanation:
Minimum vertical positional accuracy of the data source in
meters.
Quantitative Vertical Positional Accuracy Assessment:
Vertical Positional Accuracy Value:
10
Vertical Positional Accuracy Explanation:
Maximum vertical positional accuracy of the data source in
meters.
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator:
Government of Canada, Natural Resources Canada, Earth
Sciences Sector, Mapping Services Branch, Centre for Topographic Information -
Sherbrooke
Publication Date:
Unpublished material
Title:
001N10
Edition:
3.0
Series Information:
Series Name:
Geospatial Database (GDB)
Issue Identification:
2.0
Type of Source Media:
Digital Database
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date:
1985
Ending Date:
2007-05
Source Currentness Reference:
ground condition
Source Citation Abbreviation:
BDG-001N10-3.0
Source Contribution:
Source used to create the product (dataset)
Process Step:
Process Description:
Creation of CanVec product.
The CanVec product is created from the Geospatial Data Base (GDB).
The GDB is a corporate data warehouse containing mainly many types of Canadian
vector topographical data. The BDG is managed and maintained by Natural
Resources Canada.
Main transformation applied to the GDB source data when creating
CanVec product:
- Selection of a subset of entities
The BDG is composed of more than a hundred entities and a subset
(about sixty) of topographical features is selected to be a part of CanVec
product. The CanVec Feature Catalogue identifies the complete list of entities
in CanVec product.
Source Used Citation Abbreviation:
BDG-001N10-3.0
Process Date:
2008-04-15
Return to the top
Spatial Data Organization Information
Direct Spatial Reference Method:
Vector
Return to the top
Spatial Reference Information
Horizontal Coordinate System Definition:
Geographic:
Latitude Resolution:
0.0000001
Longitude Resolution:
0.0000001
Geographic Coordinate Units:
Decimal degrees
Geodetic Model:
Horizontal Datum Name:
NAD83CSRS (North American Datum 1983 in Canadian Spatial Reference
System)
Ellipsoid Name:
Geodetic Reference System 80
Semi-major Axis:
6378137
Denominator of Flattening Ratio:
298.257222101
Vertical Coordinate System Definition:
Altitude System Definition:
Altitude Datum Name:
CGVD28 (Canadian Geodetic Vertical Datum 1928)
Altitude Resolution:
1
Altitude Distance Units:
meters
Altitude Encoding Method:
Attribute values
Return to the top
Entity and Attribute Information
Overview Description:
Entity and Attribute Overview:
Entities and attributes are described in details in the CanVec Feature
Catalogue
Entity and Attribute Detail Citation:
CanVec, Feature Catalogue, Edition 1.0.1, 2008-03-01
Return to the top
Distribution Information
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization:
Centre for Topographic Information - Sherbrooke
Contact Person:
Customer Support Group
Contact Address:
Address Type:
mailing and physical
Address:
2144, King Street West, Suite 010
City:
Sherbrooke
State or Province:
Quebec
Postal Code:
J1J 2E8
Country:
Canada
Contact Voice Telephone:
+01-819-564-4857 / 1-800-661-2638 (Canada and USA)
Contact Facsimile Telephone:
+01-819-564-5698
Contact Electronic Mail Address:
geogi...@nrcan.gc.ca
Hours of Service:
8:30 AM to 12:00 PM and from 1:00 PM to 4:30 PM (Eastern Time)
Distribution Liability:
Data are subject to the GeoGratis Licence Agreement for Unrestricted Use of
Digital Data.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name:
GML (Geography Markup Language)
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name:
http://www.geogratis.gc.ca
Digital Form:
Digital Transfer Information:
Format Name:
ESRI Shapefiles
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name:
http://www.geogratis.gc.ca
Fees:
Free (or No cost)
Return to the top
Metadata Reference Information
Metadata Date:
2008-04-15
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization:
Centre for Topographic Information - Sherbrooke
Contact Person:
Customer Support Group
Contact Address:
Address Type:
mailing and physical
Address:
2144, King Street West, Suite 010
City:
Sherbrooke
State or Province:
Quebec
Postal Code:
J1J 2E8
Country:
Canada
Contact Voice Telephone:
+01-819-564-4857 / 1-800-661-2638 (Canada and USA)
Contact Facsimile Telephone:
+01-819-564-5698
Contact Electronic Mail Address:
geogi...@nrcan.gc.ca
Hours of Service:
8:30 AM to 12:00 PM and from 1:00 PM to 4:30 PM (Eastern Time)
Metadata Standard Name:
FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version:
FGDC-STD-001-1998
Metadata Use Constraints:
Only the English version of the metadata XML file is valid according to XML
schema (W3C) as defined by FGDC (http://www.fgdc.gov). French version of the
metadata XML file is not valid as it does not always respect domain values for
all fields which are sometimes only available in English. The French version is
issued mainly for display purposes. User must ensure to validate metadata
against the XML schema English version.
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