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Introduction to Digital Elevation Models (DEMs) - in conjuction with ASPRS Student Advisory Council
As the fields of digital mapping and geospatial analysis continue to grow, the use of 3D data is becoming more widespread. One of the most common types of 3D data is a digital elevation model, or DEM. In this Webinar, we'll talk about what DEMs are and how they differ from other types of spatial data. We'll also look at some of the sources of DEM data, their quality, and how they are generated. Lastly, we'll look at examples of how you can use DEMs in sophisticated geospatial analysis to solve real-world problems. When: Thursday, November 12, 9:00 a.m. PST; 10:00 a.m. MST; 11:00 a.m. CST;
12:00 p.m. EST; 17:00 GMT
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What is a DEM? -
How are DEMs different than other types of map layer data? -
What types of technology can produce DEM data? -
LiDAR -
Photogrammetry -
Radar -
What types of DEMs are available? -
What types of analysis can be done with DEM data? -
Line of sight - cell tower location -
Watershed analysis / hydrography - water bodies -
Fire modeling w/ wind direction and fuel components -
Contour generation -
Volumetric analysis -
Slope and aspect analysis -
Visualization / fly-throughs -
Generation of 3D roads 
The Student Advisory Council (SAC), an ad hoc group, was introduced at the 2006 Annual conference in Reno, Nevada. Through SAC, students have an opportunity to voice their opinions and discuss ways ASPRS can serve them best. Oversight of this Council is the responsibility of the most recently elected officer from the academic sector. The SAC is open to all ASPRS members - especially students, associate members, faculty advisors of ASPRS Student Chapters and other interested parties.
Student initiatives can cover a broad range of areas, such as:
- developing a technical session career track for upcoming annual conferences
- organizing a student networking reception at the annual conference
- recommending publications for the ASPRS Bookstore
- reviewing books and software
- initiating a student blog on the ASPRS website
- stimulating an exchange among members of student chapters across the country
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