SAN FRANCISCO — Communications electronics firm Harris Corp. has teamed up with the imagery provider MapMart to offer highly detailed digital elevation models to commercial customers. Harris developed ...

A digital map of the elevation of an area on the earth. The data are either collected by a private party or purchased from an organization such as the U.S. Geological Survey (USGS) that has already ...

1 Department of Geography, University of Colorado-Boulder, CO, USA 2 Department of Geography, University of Colorado-Boulder, CO, USA Water is a very important natural resource, and it is mandatory ...

CIRES scientists at NGDC have created tested and reviewed a new Digital Elevation Model (DEM) development methodology to build companion structured and unstructured DEMs from the same source elevation ...

Airbus Defense and Space’s edited WorldDEM database, along with the WorldDEM4Ortho dataset, are now available for streaming. WorldDEM is a single-source digital elevation model. According to the ...

When National Geospatial-Intelligence Agency partners plan operations, the agency provides them with products that identify the latitude and longitude of various locations, so that they can pinpoint ...

Keywords: Remote sensing technologies. Earthquake loss estimation. Digital elevation models. Synthetic aperture radar (SAR). Light detection and ranging (LIDAR). Building inventories. Bare-earth ...

The remote identification of forest canopy gaps from Digital Elevation Models (DEMs) built from aerial photographs is potentially a viable alternative to ground-based field surveys. In this study a ...