Sentences with phrase «elevation models»

Landsat satellite images were purchased from the US Geologic Survey (USGS), and 1:100,000 scale digital elevation models of pre-1976 terrain were also provided by the USGS.

Further observations will be used to refine the global map, to construct local and regional digital elevation models for scientific analysis and aid in assessment of future landing sites, and to attempt to detect and characterize global - scale seasonal variations.

The footage, which was created using actual images collected by the probe two years ago, along with data and digital elevation models of both Pluto and the largest of its moons, Charon, offers a «spectacular» new look at «the many unusual features» discovered on the planetary - mass object.

We conclude that the ice sheet surface is efficiently drained under optimal conditions, that digital elevation models alone can not fully describe supraglacial drainage and its connection to subglacial systems, and that predicting outflow from climate models alone, without recognition of subglacial processes, may overestimate true meltwater release from the ice sheet.

The Landsat image has been draped over a digital elevation model based on data from the ASTER sensor on the Terra satellite.

Left: Color - coded elevation model.

Armed with elevation models and data from Landsat satellites, the team took a closer look at 586 bird species from Asia, the Americas and Madagascar.

Willis, Michael J. «Construction of High Resolution Digital Elevation Model Time - Series in Support of GIA modelling: A Multi-Layered Cake - A Recipe for Success.»

Intro to the acquisition, visualization, and interpretation of airborne LiDAR - derived digital elevation models October 17 - 18, 2009 Portland State University, Portland, OR, USA Geological Society of America Short Course

Improving digital elevation models over ice sheets using AVHRR - based photoclinometry.

ASTER data is used to create detailed maps of land surface temperature, reflectance, and elevation.ASTER captures high spatial resolution data in 14 bands, from the visible to the thermal infrared wavelengths, and provides stereo viewing capability for digital elevation model creation.

These smoke signals are actually digital elevation models generated using a technology called lidar, which stands for Light Detection and Ranging.

The range maps, which we refer to as TJM1 range maps, are the intersection of the elevation limits and the subregion polygon using a widely used digital elevation model [62].

A new digital elevation model shows Kilimanjaro's glaciers are shrinking.

NASA Earth Observatory staff made the image by draping an ASTER image over a digital elevation model produced from ASTER stereo data.

Topographic data was taken from the Shuttle Radar Topography Mission Digital Elevation Model prepared by CIAT, the International Center for Tropical Agriculture.

Here we use satellite laser altimetry and a global elevation model to show widespread glacier wastage in the eastern, central and south - western parts of the HKKH during 2003 — 08.

They applied the algorithms to the digital elevation model data, estimating the depth of all the Mars» valleys at pixel level.

We conclude that (i) the interior surface of the ice sheet can be efficiently drained under optimal conditions, (ii) that digital elevation models alone can not fully describe supraglacial drainage and its connection to subglacial systems, and (iii) that predicting outflow from climate models alone, without recognition of subglacial processes, may overestimate true meltwater export from the ice sheet to the ocean.

Winter accumulation and summer ablation balance maps are constructed annually for each glacier using large scale digital elevation models for each glacier.

At the moment, this is limited by the scarce availability of high resolution Digital Elevation Models (DEM) over large areas, where small scale features can considerably influence the distribution of floodwaters.

This false colour image was put together by geologists at the Jet Propulsion Laboratory in Pasadena, California, combining data gathered by a remote sensing instrument known as TIMS, Thermal Infrared Multispectral Scanner, with a digital elevation model.

Here at SkyTruth, we are always looking for new ways to visualize the environmental impact of human activity, so we've been playing with LiDAR (Light Detection and Ranging) data and digital elevation models (DEMs).

The laser altimeter data were extracted for different types of glacier surfaces derived from the Landsat data and compared with the digital elevation model to obtain elevation differences over time.

3D view in wxNVIZ — GRASS GIS 7 The 25m European Digital Elevation Model (EU - DEM, Version 1) is a Digital Surface Model (DSM) representing the first surface as illuminated by the sensors:

To account for the limited vertical resolution of the employed SRTM30 digital elevation model (multiples of 1 m), we assumed that population distribution within elevation increments is homogeneous.

We build high resolution digital elevation models (DEMs) of coastal regions throughout the United States and its territories integrating topographic and bathymetric elevation data.