Free Geospatial Resources
As many of you know, one of the main focuses on our website is to highlight and promote the use of free and open geospatial data, as a way to promote the importance of learning geography and understanding geographic information.
Therefore we continue to add information to the Canadian Open Data resource page for regions all across Canada, and have created this section of the website to highlight some of the great free geospatial resources (applications and data) available on the Internet, that we think others would also find useful.
If you know of some great resources that you wold think should be included here for the Canadian geospatial community to discover, then let us know.
World Color Shaded Relief Map
A color shaded relief model utilizes chromo stereoscopic techniques to help emphasize the depth of the Z dimension from traditional shaded relief models that already portray the presence of an elevation difference.
Using carefully edited red, green, blue pseudo colors and then encoding them into the shaded relief image provides the user with an even more enhanced feeling that they can perceive a third dimension from a two-dimensional medium. When a feature of the same color in the image is shaded darker than the shade of its background, then the background color will predominate in determining its perceived depth position in the image. Click here to find out more about color shaded relief models …
World Color Shaded Relief Map – Free Download
This handy color shaded relief map of the world including oceans was created from the NOAA ETOPO1 data set. The file was intended to be used with handheld garmin GPS units so was resampled to 1.5 arc minute to fit within the limits of Garmin’s raster map specifications.
Now, while we do not really recommend using this file with any small scale GIS projects, it does work well with a Garmin GPS and can also be used within Google Earth to provide a different back drop.
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