Search for dissertations about: "digital terrain modelling"

Showing result 1 - 5 of 6 swedish dissertations containing the words digital terrain modelling.

  1. 1. Terrain Modelling with GIS for Tectonic Geomorphology Numerical Methods and Applications

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Gyözö Jordan; Uppsala universitet.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental technology; digital elevation model; digital terrain modelling; GIS; morphometry; tectonic geomorphology; Miljöteknik; TECHNOLOGY Other technology Environmental engineering; TEKNIKVETENSKAP Övriga teknikvetenskaper Miljöteknik;

    Abstract : Analysis of digital elevation models (DEMs) by means of geomorphometry provides means of recognising fractures and characterising the morphotectonics of an area in a quantitative way. The objective of the thesis is to develop numerical methods and a consistent GIS methodology for tectonic geomorphology and apply it to test sites. READ MORE

  2. 2. Spatially Distributed Hydrological Modelling : Wetness Derived from Digital Elevation Models to Estimate Peatland Carbon

    University dissertation from Lund University

    Author : Abdulghani Hasan; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; modelling hydrology; Digital elevation models; LiDAR data; topographic wetness index; GIS; permafrost; Stordalen; peatland;

    Abstract : To study the hydrology of peatlands and explore wetness distribution is difficultmainly due to the complexity of the surface of peatlands, and also due to the presence of permafrost underlain peatlands in the arctic regions. I have chosen the area called Stordalen mire in the arctic region in northern Sweden for my study. READ MORE

  3. 3. Airborne Gravity Gradient, Magnetic and VLF datasets Case studies of modelling, inversion and interpretation

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Sayyed Mohammad Abtahi; Thomas Kalscheuer; Laust Pedersen; Jochen Kamm; Thorkild Rasmussen; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; VLF; gravity gradient; magnetic; airborne; inversion; non-uniqueness;

    Abstract : Northern Sweden is one of the largest hosts for mineral resources in Europe and always has been an interesting area for researchers from various disciplines of Earth sciences. This dissertation is a comprehensive summary of three case study papers on airborne VLF, gravity gradient and magnetic data in the area. READ MORE

  4. 4. Modelling and Retrieval of Forest Parameters from Synthetic Aperture Radar Data

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Maciej Soja; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Frequent, high-resolution mapping of national and global forest resourcesis needed for improved climate modelling, degradation and deforestation detection,natural disaster management, as well as commercial forestry. Synthetic aperture radar(SAR) is an active radio- or microwave-frequency imaging sensor, which can be optimisedto fit specific needs through the choice of the centre frequency. READ MORE

  5. 5. Spatial Variation in Near-Ground Radiation and Low Temperature - Interactions with Forest Vegetation

    University dissertation from Lund University Press

    Author : Kristina Blennow; [1997]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; light interception; hemispherical photograph; growth; forest fragmentation; fluorescence; cold-induced photoinhibition; GIS; view factor; radiative cooling; frost protection; agro-climatic mapping; forest clear-cut; local climate; Microclimate; Physical geography; geomorphology; pedology; cartography; climatology; Fysisk geografi; geomorfologi; marklära; kartografi; klimatologi;

    Abstract : Low temperature has a large impact on the survival and distribution of plants. Interactive effects with high irradiance lead to cold-induced photoinhibition, which may impact on the establishment and growth of tree seedlings. READ MORE