Digital Elevation Models (DEMs)
Forest canopy gap detection and characterisation by the use of highresolution Digital Elevation Models
... of Digital Elevation Models (DEMs) has been investigated as an alternative to ground surveys or intensive manual analyses of aerial photography ...2003). DEMs are computerised ...
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Validation of digital elevation models (DEMs) and comparison of geomorphic metrics on the southern Central Andean Plateau
... Digital elevation models (DEMs) provide hydrologists and geomorphologists with powerful tools to explore the linkages between fundamental geomorphic processes and ...Previously, DEMs ...
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Reliability of Recent Global Digital Elevation Models for Geomatics Applications in Egypt and Saudi Arabia
... Global Digital Elevation Models (DEMs) have been utilized in various geomat- ics activities ...available DEMs vary sig- nificantly in terms of spatial resolution and release ...global ...
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EVALUATION OF HEIGHT ACCURACY FOR DIGITAL ELEVATION MODELS (DEMS) FROM HIGH RESOLUTION STEREO SATELLITE IMAGERY: (WV-3)
... through Digital Elevation Models (DEMs) is quite commonly used for several applications especially in the field of Geographic Information Analysis ...the elevation accuracy of DEM ...
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DIGITAL ELEVATION MODELS AND SLOPE ANALYSIS IN SOME PART OF PURNA RIVER SUBBASIN, CENTRAL INDIA
... Currently Digital elevation models (DEMs) is considered as the main resource for the extraction of various geomorphologic and topographic features depending on their elevation, spatial ...
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Uncertainties associated with digital elevation models for hydrologic applications: a review
... Abstract. Digital elevation models (DEMs) represent the to- pography that drives surface flow and are arguably one of the more important data sources for deriving variables used by numerous ...
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Stream Network Delineation from High-Resolution Digital Elevation Models.
... resolution digital elevation models (DEMs), surface water lines, and flood hazard ...from Digital Elevation Models ...LiDAR-based DEMs to com- pare stream mapping ...
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Validation of Digital Elevation Models around Merapi Volcano, Java, Indonesia
... 4 Digital Elevation Models (SRTM30, GTOPO30, SRTM3 and local DEM produced from aerial photogrammetric images) for the volcanoes Mer- api and Merbabu in Java, Indonesia is investigated by com- parison ...
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Automated identification of potential snow avalanche release areas based on digital elevation models
... maps, digital elevation models and pho- tographs in combination with historic avalanche informa- tion and field investigations accomplished by experienced avalanche ...high-quality digital ...
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How Well Can Spaceborne Digital Elevation Models
... Assessing global digital elevation models using the runway method: The Advanced Spaceborne 348. Thermal Emission and Reflection Radiometer versus the Shuttle Radar Topography Mission Ca[r] ...
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Fusing Digital Elevation Models to Improve Hydrological Interpretations
... of digital elevation is essential for reducing hydro- topographic derivation errors pertaining to, ...through digital elevation model (DEM) fusion, and using LiDAR-derived elevation ...
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Lava flow hazard prediction and monitoring with UAS: a case study from the 2014–2015 Pāhoa lava flow crisis, Hawai‘i
... topographic models used to forecast flow ...bare-earth digital elevation models (DEMs) and associated paths of steepest descent over the study ...UAS-derived models are an ...
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Suitability of ground-based SfM–MVS for monitoring glacial and periglacial processes
... photogrammetric digital elevation models (DEMs) and the reliability of the ...quality DEMs, which provided estimates of glacial and periglacial processes similar to those achievable ...
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Suitability of Digital Elevation Models for Watershed Segmenting Images with Directional Illumination
... the elevation around peaks of circular cells are more pointy as well as circu- lar, while those of spread cells they form particular longitudinally- convex ...
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Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard
... gridded) digital elevation models of subglacial topography, ice thickness, and ice surface elevation of five tidewater glaciers in Kongsfjorden (1100 km 2 ), northwestern Spitsbergen, based on ...
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Allen_unc_0153D_13210.pdf
... from digital elevation models (DEMs) by scaling width to upstream drainage area via downstream hydraulic geometry (DHG) relationships (Leopold and Maddock, 1953); 2) extrapolating river width ...
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Detection of seasonal cycles of erosion processes in a black marl gully from a time series of high-resolution digital elevation models (DEMs)
... The software Polyworks V. 9.1.8. (InnovMetric, 2010) was used to process the TLS point clouds. First, the vegetated ar- eas are deleted from the raw point clouds in order to keep only the bare soil surface for the ...
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Application of Public Domain Satellite-Based DEMs in Natural Hazard Modeling
... hydrological modelling. Cell size is a key characteristic of the DEM which denote its capability for spatial modelling. Recently, rapid growth of earth observation technology has facilitated Geohazard researches. ...
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Technical Note: Water flow routing on irregular meshes
... Equation (1) describes the driving forces for water move- ment very rough: Water flow in dependence of gravitation is lumped within the parameter k, and water flow induced by soil water potential is approximated by water ...
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Paper 03-2009-1
... hydrology models, since points are used in order to keep the measurements from the meteorological stations (rainfall intensities, temperatures, radiation, humidity and other meteorological ...
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