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Clearinghouses
Geographic data has never been as
available as it is today. The emergence of Internet technologies
in the past few years has made it much easier for geographic
data publishers to distribute their data to GIS users. One
of the best ways to discover this data is through geographic
clearinghouses and other geographic data sites on the Web.
Below is a collection of links to some of the more useful
sites offering data that works with GIS software.
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GeoNOVA:
The GeoNOVA Portal is the Province of Nova Scotia's gateway to geographic information about Nova Scotia.
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Manitoba Land Initiative:
The Manitoba Land Initiative Web site is the source for geo-spatial information from the Government of Manitoba. It is intended for both the GIS expert and the decision maker. This Web site allows on-line access to the MLI corporate land data warehouse.
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New Brunswick:
The Geographic Data & Maps section gives access to freely available geographic information of New Brunswick, plus links to other geographic data and maps sites.
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British
Columbia Minsitry of Environment, Lands and Parks:
GIS data for British Columbia, Canada. Downloadable data
and software, as well as, links to other sites.
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Canadian Soil Information
System: Soils, Landscapes, and related
coverages at various scales for Canada
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GIS Data Depot: The GIS Data Depot and GeoCommunity houses
data in support of the GIS industry. The majority of the
data provided has been downloaded by our staff from a
wide range of GIS Web sites located on the Internet.
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GeoConnections Discovery Portal: The Discovery Portal is the prime
discovery and access component of the Canadian Geospatial
Data Infrastructure, and is a vast clearinghouse for geospatial
products and services. The Discovery Portal is the Canadian
node of the International Directory Network (IDN). Under
this arrangement, metadata about Canadian databases are
made available through an international network of directory
systems. In return, descriptions of international databases
are made available to Discovery Portal users.
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GeoGratis:
GeoGratis is a web and file transfer protocol (ftp) site
that distributes geospatial data of Canada. Data is available
for download, without charge. Offers maps, satellite imagery
and tabular data of Canada
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Global Climate Maps: A series of 53 global climate maps.
The series prepared by FAO's Environment and Natural Resources
Service (SDRN) includes maps indicating rainfall, temperature
and sunshine. Data was collected over long periods - in
most cases, from 1961 to 1990 - and average monthly values
calculated in 1991. Maps showing Biomass Potential - that
is, the maximum amount of vegetation that an area can
produce - are also available.
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Global Forest Watch: Global Forest Watch produces various
datasets related to the state of forests in Canada, Cameroon,
and Gabon, with more countries to follow. Some of these
datasets were originally produced by other organizations,
and are made available from the Global Forest Watch Data
Warehouse. The metadata for individual datasets is made
available on the Global Forest Watch website.
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Global Land
Cover Characterization: Land cover data sets
and NDVI composites to download.
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Global Resource Information
Database - UNEP: Global GIS datasets,
maps and graphics from the United Nations Environmental
Programme's Global Resource Information Database. Includes
basemaps and data on biodiversity, human population, protected
areas, wilderness and geography. Topics range from Acidification
to Urban areas. Data is available in formats for ArcView,
ArcInfo, Idrisi and MapInfo.
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Microsoft TerraService: Access the Microsoft TerraServer using
ASP, .NET or OpenGIS. The Microsoft TerraServer is an
on-line database of high resolution USGS aerial imagery
(DOQs) and scanned USGS topographical maps (DRGs).
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North
America Land Cover Characteristics Data Base: Land
Cover maps of North America to download. Also available
are monthly NDVI composites.
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Statistics Canada: Free data on aspects of Canada's economy,
land, people and government.
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The
International Arctic Environmental Data Directory:
Data sets of the Arctic region from Canada, Denmark, Finland,
Germany, Greenland, Iceland, Norway, Russia, Sweden, United
Kingdom and U.S.
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University
of Ottawa - Regional and Local Data: Data sets and
maps highlighting land cover and use, geology, soils,transportation,
environmental and social themes. Coverage is mostly for
the Ottawa area, but does include an Ontario base map.
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World Gazetteer: Current population for cities, towns and
regions of all countries.
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