Heutige Forschungsprojekte im e-Learning-Umfeld vernachlässigen zu oft den Bezug zum Datenschutz und werfen damit Fragen des ethischen Forschens auf. Das vorliegende Papier analysiert Datenschutzfragen bei der Etablierung eines sozio-technischen Systems im Umfeld kleiner und mittlerer Unternehmen (KMU). Wir beziehen uns auf das Beispiel eines noch prototypischen e-Learning-Systems. Dieses liefe...

The presents study was aimed to create new methods for extraction and analysis of land elevation contour lines, automatic extraction of water bodies (river basins and lakes), from the digital elevation models (DEM) of a test area. And extraction of villages which are fell under critical water scarcity regions for agriculture and drinking water with respect to their elevation data and available ...

abstract a significant deficiency of most computer models used for stream floodplain analysis is that the locations of structures impacted by floodwaters, such as bridges, roads, and buildings, cannot be effectively compared to the floodplain location. this research presents a straightforward approach for processing output of the hec-ras hydraulic model, to enable two- and three dimensional flo...

by overlaying altimetric and vector data ! Frédéric Rousseaux ! Institut Géographique National France COGIT laboratory, 2-4 avenue Pasteur, 94165 SAINT-MANDE Cedex, France Tel : +33143980000 poste 7583 ; Fax : +33143988171 E-mail : [email protected] ; Website : recherche.ign.fr !!

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A new digital elevation model (DEM) is presented for accurate surface representation in photogrammetric processing of stereo ground-based imagery. This model is named the continuative variable resolution DEM (cvrDEM). In contrast to traditional grid-based DEMs that have only one fixed resolution, this new model can provide resolutions that vary depending on the range represented in the groundba...

Global mapping of urban environments is a challenging task. Earth observation is probably the only source possibly providing a consistent and area-wide data set. With the German TanDEM-X mission two global coverages of high resolution radar data will be available for 2011 and 2012. While the main task of the mission is the derivation of a global digital elevation model, the collected data will ...

Traditional glaciological mass balance measurements of mountain glaciers are a demanding and cost intensive task. In this study, we combine data from the Ice Cloud and Elevation Satellite (ICESat) acquired between 2003 and 2009 with air and space borne Digital Elevation Models (DEMs) in order to derive surface elevation changes of the Grosser Aletschgletscher in the Swiss Alps. Three different ...