Sökning: "Digital Terrain Model"

Visar resultat 21 - 25 av 63 uppsatser innehållade orden Digital Terrain Model.

1. 21. Skuggad terrängmodell och historiska kartor : Identifiering av forn- och kulturhistoriska lämningar i skogsmark

   Kandidat-uppsats, Linnéuniversitetet/Institutionen för skog och träteknik (SOT)

   Författare :Angelica Saur; [2018]
   Nyckelord :cultural heritage; shaded terrain models; historical maps.; Fornlämning; kulturlämning; skuggad terrängmodell; historiska kartor;

   Sammanfattning : Forestry has major negative effect with damage on cultural heritage in forest land. To avoid this, forestry needs to find new methods to search for and identify remains. In this study it was examined if shaded terrain models and historical maps could be used to identify ancient and cultural heritage in forest land. LÄS MER

3. 22. Inundation scenarios in a changing climate : assessing potential impacts of sea-level rise on the coast of South-East England

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Adela Nistora; [2018]
   Nyckelord :Geography; Geographical Information Systems; GIS; Climate Change; Climate Change Impacts; Sea-Level Rise; Coastal Inundation; LiDAR; South-East England; Earth and Environmental Sciences;

   Sammanfattning : The aim of this study was to explore sea-level rise (SLR) exposure in South-East England by conducting a broad analysis of some of the possible impacts of inundation in the region under different SLR scenarios in a warming climate. The potential effects of coastal inundation were mapped and quantified by applying a modified bathtub modelling approach in GIS to a low-elevation coastal Digital Terrain Model (DTM) derived from up-to-date, high-resolution, high-accuracy LiDAR data. LÄS MER

4. 23. Urban flood modelling : a GIS based approach in Lomma, Skåne region

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Michael Araya Ghebremariam; [2017]
   Nyckelord :Physical Geography and Ecosystem analysis; Digital Elevation Model; Single flow direction algorithm; Deterministic eight-node D8 algorithm; Multiple flow direction algorithm; Triangular Form Based Multiple Flow algorithm TFM ; Earth and Environmental Sciences;

   Sammanfattning : Urbanization triggers flooding because it replaces pervious land surfaces with impervious surfaces that have less capacity to infiltrate and store water into the ground. Detailed analysis and modelling of flooding in urban areas can be performed with GIS-based distributed hydrological models. LÄS MER

5. 24. Simulated SAR with GIS data and pose estimation using affine projection

   Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Författare :Martin Divak; [2017]
   Nyckelord :;

   Sammanfattning : Pilots or autonomous aircraft need to know where they are in relation to the environment. On board aircraft there are inertial sensors that are prone to drift which requires corrections by referencing against known items, places, or signals. LÄS MER

7. 25. Dynamics of a retreating ice sheet : a LiDAR study in Värmland, SW Sweden

   Master-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Alastair Goodship; [2017]
   Nyckelord :LiDAR; SIS; retreat; deglacial; DEM; geomorphology; Värmland; Earth and Environmental Sciences;

   Sammanfattning : Värmland in south central Sweden lies across the established zone of aquatic-terrestrial transition of the Scandinavian Ice Sheet margin during its rapid final retreat following the Younger Dryas. Recently acquired LiDAR data across Värmland allows more highly detailed observation and analysis of glacial landforms formed during this stage than has previously been possible. LÄS MER