Earth Observation ImageryEntry ID: Canada_GeoGratis_EarthObImagery
Abstract: GeoGratis distributes a wide variety of geospatial data, data based on
location, for geographic areas across Canada. The data is available free of
charge, subject to copyright restrictions and disclaimer.
The following metadata text describes the sample mosaics and other
images currently available through the GeoGratis web site under the Earth
... Observation Imagery section.
The AVHRR composite of Canada is in "JPEG" format and contains 3
channels with 5700 pixels by
4800 lines. Research has been conducted at CCRS by the Environmental
Monitoring Section to study the use of the NOAA image for various projects such
as: estimating Net Primary Productivity, measuring the albedo at the top of the
atmoshpere, and detecting forest fires.
This mosaic of Vancouver Island is composed of 16 ERS-1 images. It is
4321 pixels by 3601 lines
and contains 1 band of data. The images were acquired between
February 28, 1993 and April 23, 1993. The geographic bounds are: Latitude 48?
- 51? N and Longitude 123? - 129? W, with sampling intervals of 3 minutes
(latitude) and 5 minutes (longitude). A digital elevation model of the same
area is also available.
This mosaic of the British Columbia mainland is composed of 53 ERS-1
images. It is 7201 pixels by 2401 lines and contains 1 band of data. The
images were acquired between April 17, 1993 to August 15, 1993. The geographic
bounds are: Latitude 49? - 51? N and Longitude 114? - 124? W, with sampling
intervals of 3 minutes (latitude) and 5 minutes (longitude).
The file canal_flats.rs.bsq is an AVIRIS hyperspectral radiance cube.
It is a flat raster, band sequential file, with 200 columns, 200 rows, and 223
bands. The data itself is 16 bit, unsigned integer.
Other LANDSAT images of areas within Canada are available for
downloading. The image *.hdr files provide geographic referencing data to
locate the image as well as the image size. The images contain four bands of
data. The files are zipped and are in a flat raster format.These datasets are
valuable for educational purposes.
Data Set Citation
Dataset Originator/Creator: Government of Canada, Natural Resources Canada, Canada Centre for Remote Sensing, GeoAccess Division
Dataset Title: Earth Observation Imagery
Dataset Series Name: Earth Observation Imagery
Dataset Release Place: Ottawa, Ontario, Canada
Dataset Publisher: Government of CanadaOnline Resource: http://geogratis.cgdi.gc.ca/clf/en?action=hyperspectral
ISO Topic Category
Access Constraints none
Use Constraints Licensing information located at http://geogratis.cgdi.gc.ca/geogratis/en/index.html
Data Set Progress
Role: TECHNICAL CONTACT
Email: info at GeoGratis.cgdi.gc.ca
615 Booth Street, Room 650
Province or State: Ontario
Postal Code: K1A 0E9
Creation and Review Dates
DIF Creation Date: 2002-07-02
Last DIF Revision Date: 2009-05-13
Future DIF Review Date: 2006-06-18