Landsat 7 Orthoimages & Control Points (Geobase Data Alignment Layer)
There are a number of federal, provincial, and territorial databases in existence and they are widely used across Canada. Among the range available, topographic databases offer the ideal spatial reference for those who decide how a territory and its resources are managed and used. One of the most significant problems encountered in processing data to extract the information sought, however, is integrating the various data sources. There is general agreement that having a unique, shared geometry for the topographic spatial reference would reduce integration problems. In taking this approach, the various federal, provincial, and territorial agencies worked together to establish the GeoBase Data Alignment Layer (GDAL), which comprises Landsat 7 Orthoimages and the Control Points used in their orthorectification.
Above the 82 degree of latitude, 5 RADARSAT-1 orthoimages were used to complete the coverage of satellite imagery over Canada
Landsat 7 Orthorectified Imagery over Canada
- Description
- Review a detailed description of the Landsat 7 Orthorectified Imagery over Canada. Product specifications, metadata and other supporting documentation are also available.
- Download
- Find and download Landsat 7 orthorectified scenes available in numerous formats and projections.
- View
- Navigate through Landsat 7 imagery with the help of an application based on WMS standards. Create your own views by adding additional themes available through the GeoBase portal and combining them with Landsat 7 imagery.
Control Points for Landsat 7 Imagery
- Description
- Review a detailed description of the Control Points for Landsat 7 Imagery. Product specifications, metadata and other supporting documentation are also available.
- Download
- Get access to the Control Points datasets including the control point location and control point context such as road intersection or lake outline.
- View
- Navigate through Control Points data with the help of an application based on WMS standards. Create your own views by adding additional themes available through the GeoBase portal and combining them with Control Points data.
RADARSAT-1 Orthorectified Imagery
- Description
- Review a detailed description of the RADARSAT-1 Orthorectified Imagery.
- Download
- Download the available RADARSAT-1 orthoimages used to complete data coverage with Orthorectified Satellite Imagery over Canada.