Carlson

Digital elevation models (DEM) or terrain models are at the center of nearly every land development project. They are variously referred to by other names such as digital surface model (DSM) or digital terrain model (DTM).

Drillholes and strata Mineral exploration in mining and other similar data collection geo-environmental activities require us to probe the subsurface of the earth. One common method is to drill holes into the earth and recover drill-cores or drill-augur cuttings that are at specified depth-intervals and diameter suitable for the task.

3D view of digital elevation model(DEM) with vertical exaggeration (x10) When working in an area where there is no fit-for-purpose topographic data collected for use on a project in the conterminous United States, Alaska, Hawaii, U.