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NSF,NGA release first unclassified digital elevation models of Alaska
NSF NGA first unclassified digital elevation models Alaska
2016/9/12
The National Science Foundation (NSF) and the National Geospatial-Intelligence Agency (NGA) have publicly released new three-dimensional topographic maps of Alaska in support of a White House Arctic i...
A Comparison Between Canadian Digital Elevation Data (CDED) and Srtm Data of Mount Carleton in New Brunswick (Canada)
Relative Accuracy Canadian Digital Elevation Data (CDED) SRTM Icesat Lidar
2015/12/18
Digital elevation models (DEM) are basic part of the information about an area. Knowledge about DEM quality is important for their use in management projects, engineering projects and geomorphologic s...
AUTOMATIC BUILDING RECONSTRUCTION FROM A DIGITAL ELEVATION MODEL AND CADASTRAL DATA:AN OPERATIONAL APPROACH
Digital Elevation Model Cadastral Maps RANSAC Plane Extraction Building Polyhedral Surface ThreeDimensional Modeling
2015/8/31
In this paper, we tackle the problem of automatic building reconstruction using digital elevation model and cadastral data. We aim at massive production of 3D urban models and present thus an algorith...
Hydrologic analysis of a flood based on a new Digital Elevation Model
Hydrologic analysis DEM GIS HEC-HMS Flood Natural disaster
2015/7/27
These The present study aims to simulate the hydrologic processes of a flood, based on a new, highly accurate Digital Elevation Model (DEM). The DEM is provided by the Ministry of Land, Infrastructure...
The Digital Elevation Model 1:25.000 (DEM 25) for The Federal Republic of Germany
Fusion DEM/DTM Multiresolution
2015/7/9
The fusion respectively the homogenisation of the digital terrain models of the federal states (L鋘der) of Germany to
a nationwide digital elevation model for Germany is described. The aim is a nation...
The Importance of Understanding Error in Lidar Digital Elevation Models
Laser Scanning Error Urban Accuracy
2015/7/9
The paper presents the results of an accuracy analysis of a number of gridded Digital Surface Models (DSMs) which have been
created from first return laser scanning (LiDAR) data. DSMs are created usi...
Integration of High Resolution Digital Elevation Models in 3d-gis-applications of The Environmental Information System of Baden-Württemberg
High resolution DEM/DTM Threedimensional
2015/7/7
This paper describes the integration of high resolution digital elevation models, currently acquired by the administration of BadenWürttemberg,
a state in Germany, in two example 3D GIS applications ...
QUALITY ASSESSMENT FOR THE FIRST PART OF THE TANDEM-X GLOBAL DIGITAL ELEVATION MODEL
Synthetic Aperture Radar (SAR) SAR Interferometry
2015/5/7
TanDEM-X is an innovative synthetic aperture radar (SAR) mission with the main goal to generate a global and homogeneous digital elevation model (DEM) of the Earth’s land masses. The final DEM produ...
Orthorectification and Digital Elevation Model (DEM) Generation Using Cartosat-1 Satellite Stereo Pair in Himalayan Terrain
DEM Cartosat Stereo Pair Orthorectification Himalaya
2013/3/5
High resolution data have high relief displacement in hilly terrains. Development of Digital Elevation model helps to assess bio resources more accurately in such terrains. While estimating bio resour...