Digital Elevation Model Technologies & Applications, 3rd Ed

Digital Elevation Model Technologies & Applications, 3rd Ed

The 3rd edition of the DEM Users Manual includes 15 chapters, three appendices and a detailed Index: References in the eBook version are hyperlinked. Chapter and appendix titles include:

1. Introduction to DEMs 
David F. Maune, Hans Karl Heidemann, Stephen M. Kopp, and Clayton A. Crawford 
2. Vertical Datums 
Dru Smith 
3. Standards, Guidelines & Specifications 
David F. Maune 
4. The National Elevation Dataset (NED) 
Dean B. Gesch, Gayla A. Evans, Michael J. Oimoen, and Samantha T. Arundel 
5. The 3D Elevation Program (3DEP) 
Jason M. Stoker, Vicki Lukas, Allyson L. Jason, Diane F. Eldridge, and Larry J. Sugarbaker 
6. Photogrammetry 
J. Chris McGlone and Scott Arko 
7. IfSAR 
Scott Hensley and Lorraine Tighe 
8. Airborne Topographic Lidar 
Amar Nayegandhi and Joshua Nimetz 
9. Lidar Data Processing 
Joshua M. Novac 
10. Airborne Lidar Bathymetry 
Jennifer Wozencraft and Amar Nayegandhi 
11. Sonar 
Guy T. Noll and Douglas Lockhart 
12. Enabling Technologies 
Bruno M. Scherzinger, Joseph J. Hutton, and Mohamed M.R. Mostafa 
13. DEM User Applications 
David F. Maune 
14. DEM User Requirements & Benefits 
David F. Maune 
15. Quality Assessment of Elevation Data 
Jennifer Novac 
Appendix A. Acronyms 
Appendix B. Definitions 
Appendix C. Sample Datasets 


In 2013, the U.S. Geological Survey (USGS) initiated the 3D Elevation Program (3DEP) to provide not just bare earth DEMs, but a full suite of 3D elevation products using Quality Levels (QLs) that are standardized and consistent across the U.S. and territories. The 3DEP is based on the National Enhanced Elevation Assessment (NEEA) which evaluated 602 different mission-critical requirements for and benefits from enhanced elevation data of various QLs and update frequencies for 34 Federal agencies, all 50 states (with local and Tribal input), and 13 non-governmental organizations. The NEEA documented the highest Return on Investment from QL2 lidar for the conterminous states, Hawaii and U.S. territories, and QL5 IfSAR for Alaska. 

USGS’ Lidar Base Specification (LBS) is now used nationwide to produce standardized and consistent topographic lidar of all QLs, and Chapters 1, 3, 5, 8, 9, 13, 14, and 15 are “must-read” chapters for users and providers of topographic lidar data. Chapter 8 addresses linear mode, single photon and Geiger mode lidar technologies, and Chapter 10 addresses the latest in topobathymetric lidar. The remaining chapters are either relevant to all DEM technologies or address alternative technologies including photogrammetry, IfSAR, and sonar. 

As demonstrated by the figures selected for the front cover of this manual, readers will recognize the editor’s vision for the future a 3D Nation that seamlessly merges topographic and bathymetric data from the tops of the mountains, beneath the rivers and lakes, to the depths of the sea. 

David F. Maune, PhD, CP, CFM, PSM, PS, GS, SP 
Amar Nayegandhi, CP, CMS-Remote Sensing

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