The idea for multi-resolution DEMs originated with this illustration centered on the Säntis Group, Switzerland, in Eduard Imhof's classic text, Cartographic Relief Presentation. Each of the Colorado DEMs has the same center point and same number of height samples, 1,500 x 1,500. For example, there are eleven DEMs in the Colorado series starting at 1-meter resolution and ending at 5-kilometer resolution, a scale that includes most of North America. Multi-resolution DEMs are available for mountainous areas in Alaska, Colorado, and Switzerland at a range of resolutions. To give mapmakers and researchers "common ground" for comparative experimentation, we offer sample Digital Elevation Models (DEMs) available in two categories: multi-resolution and archetypal landforms. As demonstrated by the images above, one can represent the same terrain many different ways. The depiction of terrain on maps is undergoing a renaissance due to new digital techniques.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |