Cartography and Mapping
Links to other web sites

Digital Terrain Model/Digital Elevation Model

DEM Conversion Software: General GIS utilities from the BLM. The programs pertaining to DEMs include: chop.zip (C source code and executables that add cr/lf to DLGs and DEMs), dem2dta.zip (Quickbasic source code and executable to convert DEM to x,y,z), dem2xyz3.zip (C source code and executbel to convert 3 arc second DEM to x,y,z), demconv.f77 (Fortran 77 source code converting DEM to row, column and z -- needs work), and demout.f77 (Fortran 77 source code to create a USGS DEM from a grid).

DEM Lecture material includes uses of DEM, representation, interpolation techniques, data sources and sampling, and products. It is written by H. Zuuring, Missoula, Montana.

Digital Elevation Models, link to user guides and DEM standards from the US Geological Survey.

Digital Line Graphs, US Geological Survey. This link will point to user guides for 1:24,000, 1:100,000 and 1:2,000,000-scale DLGs along with DLG standards.

Digital Terrain Model. DiGeM - a program for digital terrain modeling by O. Conrad. There is also a table of contents about the project dealing with aspects of DTM.

Error Assessment for Digital Terrain Models. Paper by Stephen Wise, Department of Geography, University of Sheffield.

Hydrological Modeling using Digital Terrain Models. Paper by Petter Pilesjo and Qiming Zhou. This paper demonstrate a newly-developed hydrological modelling algorithm to simulate surface overflow accumulation process.

Other Miscellaneous Sites

Map Moderization - Flood Hazard Mapping Program by FEMA home page. Click here to see information on LIDAR

This page is maintained by Bob Burtch and was last updated on 9 February 2001.
Please send any comments or suggestions here.