Global Change Master Directory (GCMD)

Data Sets

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Ancillary Descriptions

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National Topographic Data Base (NTDB)
Entry ID: CANEMRCCRSNTDB

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Summary

Abstract: The National Topographic Data Base (NTDB) comprises digital vector data sets
that cover the entire Canadian landmass. Geomatics Canada has digitized and
structured thousands of topographic maps, creating a complete and uniform
product that can be highly useful in a broad range of industries. The NTDB
includes features such as watercourses, urban areas, railways, roads,
vegetation, and relief.

The organizational unit for the NTDB is the National Topographic
System (NTS), based on the North American Datum of 1983 (NAD83). Each file
(data set) consists of one NTS unit at either the 1:50,000 or 1:250,000 scale.
Furthermore, the data is now available by themes within a file. The ground data
is depicted through points, lines, and areas.The NTDB provides a base of
properly structured vector data (segmentation, mathematical closure, connection
and sharing between entities) designed and suited for geographic information
system (GIS) applications. It also can be used for preparing thematic maps.

z39.50s://132.156.159.70:9001/BNDT_F

Fees -
http://www.cits.rncan.gc.ca/cit/servlet/CIT/site_id=01&page_id=1-005-002-001-00
2.html

includes features such as watercourses, urban areas, railways, roads,
vegetation, and relief.

Spatial Data Organization Information -

Indirect Spatial Reference:
Direct Spatial Reference: Point (Lat./Long. Coordinates and Rectangular
Grid)
Raster Object Type:
Row Count:
Column Count:
Vertical Count:
Spatial Reference Information -
Horizontal Coordinate System Definition -

Planar -

Planar Coordinate Encoding Method:
Coordinate Representation:
Abscissa Resolution:
Ordinate Resolution:
Distance and Bearing Representation:
Distance Resolution:
Bearing Resolution:
Bearing Units:
Bearing Reference Direction:
Bearing Reference Meridian:
Planar Distance Units:

Geodetic Model:
Horizontal Datum Name: NAD 83
Ellipsoid Name: GRS80
Semi-major Axis:
Denominator of Flattening Ratio:

Related URL

Link: View Related Information
Description: GeoConnections Discovery Portal. Canada's IDN Node.

Geographic Coverage

N: 84.0 S: 41.0 E: -52.0 W: -141.0

Data Set Citation

Dataset Originator/Creator: Government of Canada, Natural Resources Canada, Centre for Topographic Information (Sherbrooke)
Dataset Title: National Topographic Data Base (NTDB)
Online Resource: http://www.cits.rncan.gc.ca/cit/servlet/CIT/site_id=01&page_id=1-00...

Temporal Coverage

Start Date: 1945-01-01

Science Keywords

BIOSPHERE >VEGETATION >VEGETATION COVER    [Definition]

HUMAN DIMENSIONS >INFRASTRUCTURE >BUILDINGS    [Definition]

HUMAN DIMENSIONS >INFRASTRUCTURE >COMMUNICATIONS    [Definition]

HUMAN DIMENSIONS >INFRASTRUCTURE >CULTURAL FEATURES    [Definition]

HUMAN DIMENSIONS >INFRASTRUCTURE >ELECTRICITY    [Definition]

HUMAN DIMENSIONS >INFRASTRUCTURE >PIPELINES    [Definition]

HUMAN DIMENSIONS >INFRASTRUCTURE >TRANSPORTATION    [Definition]

TERRESTRIAL HYDROSPHERE >SURFACE WATER >LAKES    [Definition]

TERRESTRIAL HYDROSPHERE >SURFACE WATER >RIVERS/STREAMS    [Definition]

LAND SURFACE >LAND USE/LAND COVER >LAND COVER    [Definition]

LAND SURFACE >TOPOGRAPHY >LANDFORMS    [Definition]

LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION    [Definition]

ISO Topic Category

BIOTA
ELEVATION

GEOSCIENTIFIC INFORMATION
IMAGERY/BASE MAPS/EARTH COVER
INLAND WATERS
SOCIETY
STRUCTURE
TRANSPORTATION
UTILITIES/COMMUNICATIONS

Access Constraints

Release and copyright conditions.

Use Constraints

None

Keywords

COMMUNICATION

ENERGY

GEOMATICS

HYDROGRAPHY

HYPSOGRAPHY

INFRASTRUCTURE

LAND USE

PLANIMETRY

TOPOLOGY

TRANSPORTATION

VECTOR DATA

Data Center

Centre for Topographic Information Sherbrooke, Natural Resources Canada [Information]
Data Center URL: http://www.ctis.nrcan.gc.ca/

Data Center Personnel

Name: CUSTOMERS SUPPORT GROUP
Phone: +1-800-661-2638 (Canada and USA)
Fax: +01-819-564-5698
Email: ntdb at nrcan.gc.ca
Contact Address:
2144, King St. West, Suite 010
City: Sherbrooke
Province or State: Quebec
Postal Code: J1J 2E8
Country: Canada

Distribution

Fees: See Summary

Personnel

CUSTOMERS SUPPORT GROUP
Role: TECHNICAL CONTACT
Phone: +1-800-661-2638 (Canada and USA)
Fax: +01-819-564-5698
Email: ntdb at nrcan.gc.ca
Contact Address:
2144, King St. West, Suite 010
City: Sherbrooke
Province or State: Quebec
Postal Code: J1J 2E8
Country: Canada

Creation and Review Dates

DIF Creation Date: 2012-05-04

Last DIF Revision Date: 2012-05-08

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