The Atlas of Canada
This presentation is the property of its rightful owner.
Sponsored Links
1 / 12

atlas.gc PowerPoint PPT Presentation


  • 75 Views
  • Uploaded on
  • Presentation posted in: General

The Atlas of Canada. Atlas of Canada 6th Edition Gazetteer Service & Find a Place Application. http://atlas.gc.ca. Overview. Background – Who we are? Canada’s Geographical Names (CGNS) Feature Name Tagging Gazetteer Service Find a Place Application Find a Place Next Steps Questions.

Download Presentation

atlas.gc

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Atlas gc

The Atlas of Canada

Atlas of Canada

6th Edition

Gazetteer Service

& Find a Place Application

http://atlas.gc.ca


Overview

Overview

  • Background – Who we are?

  • Canada’s Geographical Names (CGNS)

  • Feature Name Tagging

  • Gazetteer Service

  • Find a Place Application

  • Find a Place Next Steps

  • Questions


The atlas of canada mission statement

The Atlas of Canada Mission Statement

  • The Atlas of Canada provides authoritative, current and accessible geographic information products at a national level. Working with partners, the Atlas facilitates the integration and analysis of diverse data in order to increase overall knowledge about Canada.


Canadian geographical names service

Canadian Geographical Names Service

  • A distributed toponymic data service for the CGDI operated by the Geographical Names Section

  • The purpose is to deliver a national view of Canada’s geographical names into the standards and technology framework of the CGDI

  • The Canadian Geospatial Data Infrastructure (CGDI) is the technology, standards, access systems and protocols necessary to harmonize all of Canada’s geospatial data bases, and make them available on the internet. CGDI is facilitated by GeoConnections


Feature tagging

Feature Tagging

  • 1:7.5million and 1:1million scales

  • Statistical framework: provinces, cities, towns, villages, hamlets, municipalities, Indian reserves

  • Islands and island groupings

  • Hydrology: rivers and lakes


Tagging challenges

Tagging Challenges

  • No control over the structure and content of the names database

  • Hierarchies

  • Relationships between framework layers

  • Duplicate names for the same feature - Pan-Canadian names or cross provincial names

  • Time Stamps

  • Features with fuzzy boundaries – bays, capes

  • Data tagged at more than one scale


Cgdi gazetteer service

CGDI Gazetteer Service

The CGDI Gazetteer Service performs ‘on the fly’ linking of toponymy to feature data.


Find a place application

Find a Place Application

User (human) selects place name

of interest. Clicks on Go.

User enters place feature.

Find a Place

Database (FAPD)

Concise

Gazetteer


Adding thematic data

AddingThematicData


Find a place database

Find a Place Database

  • All official names in Canada are stored in the Geographical Names Section of Canada database (CGNDB).

  • Each official name (place or physical feature) is assigned a unique identifier, e.g. Pictou County –CBDUD.This identifer is used to obtain the feature extent from the WFS, based on the official name queried.

  • This unique identifier is the primary key

    that relates the tables in the Find a Place

    Database (FAPD) together.

  • Each table represents a feature type

    (e.g. river, census division) which contains

    the thematic attribute information from

    the Atlas of Canada database. The thematic

    data is derived from Atlas thematic shapefiles.


Find a place next steps

Find a Place Next Steps ...

  • Content Perspective:

    • Add secondary names. Secondary names are non-official names, such as health districts, ecozones, etc.

    • Resolve issues of labelling/symbology.

    • Add more thematic layers, e.g. drainage

      basins.

    • Eventually, allow users to locate any place/feature on a thematic map.

    • Locate places on different and appropriate scales, such as the 1: 1 million, and possibly topo-maps (1:250 000/1:50 000).

    • Continually add more thematic data to FAPD.


Atlas gc

The

L’Atlas

Atlas

Canada

du

of

Canada

Come visit !

http://atlas.gc.ca


  • Login