Sökning: "Earth and Environmental Sciences"

Visar resultat 1 - 5 av 2244 uppsatser innehållade orden Earth and Environmental Sciences.

  1. 1. RGB and Multispectral UAV image classification of agricultural fields using a machine learning algorithm

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

    Författare :Sigurbjörn Jónsson; [2019]
    Nyckelord :Physical Geography and Ecosystem Analysis; UAV; classification; Random Forest; Geomatics; segmentation; Earth and Environmental Sciences;

    Sammanfattning : A common technique within image analysis is image classification which describes the process of reducing the information content of an image into few user-defined classes. With the emergence of unmanned aerial vehicles (UAVs), high spatial resolution (cm-level) images can be collected. LÄS MER

  2. 2. A Spatial Analysis of Homicide Crime’s Distribution and Association with Deprivation in Stockholm Between 2010-2017

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

    Författare :Dennis Lindell Schettini; [2019]
    Nyckelord :GIS; homicide; deprivation; hot spot; generalized regression; Earth and Environmental Sciences;

    Sammanfattning : A Spatial Analysis of Homicide Crime’s Distribution and Association with Deprivation in Stockholm Between 2010-2017 Homicide crimes are rare events depending on numerous factors and tend to be distributed differently based on geographic location. The use of spatial analysis is substantively important for detecting different predictors in varying geographic areas and for the diffusion process of homicide crimes. LÄS MER

  3. 3. Risk, Resilience and Insurance in Sudanese Pastoralism

    Master-uppsats, Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

    Författare :Alla Safieldin; [2019]
    Nyckelord :Climate change adaptation; Disaster risk management; Drought; Index-based livestock insurance; Pastoralism; Risk; Resilience; Sudan; Earth and Environmental Sciences;

    Sammanfattning : The nomadic pastoralists of the Sahel are often identified as a group at the frontline of global climate change. Their existence in arid and semi-arid regions and their reliance on seasonal rainfall are among the factors that contribute to their vulnerability to drought and climate shocks. LÄS MER

  4. 4. Assessing evolution of ice caps in Suðurland, Iceland, in years 1986 - 2014, using multispectral satellite imagery

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

    Författare :Alicja Miodonska; [2019]
    Nyckelord :remote sensing; multispectral satellite imagery; Landsat; Iceland; glaciers; ice caps; Geography; GIS; Earth and Environmental Sciences;

    Sammanfattning : The study focuses on the application of multispectral satellite imageries in glaciological studies. It aims to assess how the Icelandic glaciers have evolved over the last decades (from the 1980s to 2014). The study area covers Mýrdalsjökull and Eyjafjallajökull ice caps located in Suðurland, Iceland. LÄS MER

  5. 5. Snow insulation effects across the Arctic : evaluating a revised snow module in LPJ-GUESS

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

    Författare :Alexandra Pongrácz; [2019]
    Nyckelord :active layer depth; Arctic; LPJ-GUESS; snow; soil temperature; Earth and Environmental Sciences;

    Sammanfattning : The effect of future changes in temperature and precipitation patterns on arctic ecosystem functioning is often assessed using state-of-the-art ecosystem models. Many models however lack detailed representation of wintertime processes, as pointed out by recent studies (Wang et al. 2016, Slater and Lawrence 2013). LÄS MER