Search for dissertations about: "Land cover"

Showing result 1 - 5 of 144 swedish dissertations containing the words Land cover.

  1. 1. Inferring Land Use from Remote Sensing Imagery A context-based approach

    University dissertation from Stockholm : Department of Human Geography, Stockholm University

    Author : Michael Meinild Nielsen; Stockholms universitet.; [2014]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; land use; remote sensing; urban remote sensing; image analysis; segmentation; spatial context; land cover; land cover configuration; farming types; bark beetle; dead trees; forest inventory; Human Geography; kulturgeografi;

    Abstract : This doctoral thesis investigates the potential of classification methods based on spatial context to infer specific forms of land use from remote sensing data. The problem is that some types of land use are characterized by a complex configuration of land covers that traditional per-pixel based methods have problems classifying due to spectral heterogeneity. READ MORE

  2. 2. Land Degradation and Climate in Iceland - a spatial and temporal assessment

    University dissertation from Department of Physical Geography and Ecosystem Science, Lund University

    Author : Rannveig Olafsdottir; Lund University.; Lunds universitet.; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; spatial analysis; long-term analysis; Holocene; spatial simulations; Iceland; Geology; fysisk geografi; physical geography; Geologi; land cover; farmers perception; Land degradation;

    Abstract : Degradation of vegetation and soil erosion has contributed to loss of biological productivity and land degradation in Iceland. This thesis focuses on spatial and temporal patterns of land degradation in Iceland from a geographical perspective both along short and long timescales. READ MORE

  3. 3. Pollen-based quantitative reconstruction of land-cover change in Europe from 11,500 years ago until present - A dataset suitable for climate modelling

    University dissertation from Växjö : Linnaeus University Press

    Author : Anna-Kari Trondman; Linnéuniversitetet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; pollen data; REVEALS model; model testing; land vegetation; land-cover; Holocene; Europe;

    Abstract : The major objective of this thesis was to produce descriptions of the land vegetation-cover in Europe for selected time windows of the Holocene (6000, 3000, 500, 200, and 50 calendar years before present (BP=1950)) that can be used in climate modelling. Land vegetation is part of the climate system; its changes influence climate through biogeophysical and biogeochemical processes. READ MORE

  4. 4. Urban Land-cover Mapping with High-resolution Spaceborne SAR Data

    University dissertation from Stockholm : KTH

    Author : Hongtao Hu; KTH.; [2010]
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; High-resolution; RADARSAT-1 SAR; RADARSAT-2 SAR; Urban Land Cover; Object-based Classification; Neural Network; Support Vector Machines.; FORESTRY; AGRICULTURAL SCIENCES and LANDSCAPE PLANNING Area technology Remote sensing; SKOGS- och JORDBRUKSVETENSKAP samt LANDSKAPSPLANERING Areell teknik Fjärranalys;

    Abstract : Urban areas around the world are changing constantly and therefore it is necessary to update urban land cover maps regularly. Remote sensing techniques have been used to monitor changes and update land-use/land-cover information in urban areas for decades. Optical imaging systems have received most of the attention in urban studies. READ MORE

  5. 5. Multitemporal Spaceborne Polarimetric SAR Data for Urban Land Cover Mapping

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Xin Niu; KTH.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; RADARSAT-2; spaceborne; polarimetric SAR; urban land cover; classification; TECHNOLOGY Information technology; TEKNIKVETENSKAP Informationsteknik;

    Abstract : Urban represents one of the most dynamic areas in the global change context. To support rational policies for sustainable urban development, remote sensing technologies such as Synthetic Aperture Radar (SAR) enjoy increasing popularity for collecting up-to-date and reliable information such as urban land cover/land-use. READ MORE