Essays about: "Spatial Heterogeneity"

Showing result 1 - 5 of 24 essays containing the words Spatial Heterogeneity.

  1. 1. Forest stand delineation through remote sensing and Object-Based Image Analysis

    University essay from Högskolan i Gävle/Samhällsbyggnad, GIS

    Author : José Antonio Ortega-García; [2018]
    Keywords : forest stand; stand delineation; LiDAR; ASTER; OBIA; GIS; remote sensing; segmentation; canopy heigh model; forestry; Navarra; OBIA; LiDAR; ASTER; segmentación; rodal; forestal; SIG; teledetección;

    Abstract : Forest stand delineation is an essential task of forest management planning which can be time consuming and exposed to subjectivity. The increasing availability of LiDAR data and multispectral imagery offers an opportunity to improve stand delineation by means of remotely-sensed data. READ MORE

  2. 2. Capturing continuous human movement on a linear network with mobile phone towers

    University essay from Umeå universitet/Institutionen för matematik och matematisk statistik

    Author : Jesper Dejby; [2017]
    Keywords : Mobile phone tower analysis; Mobile phone networks; Spatial point processes; Linear networks; Call detail records; Human movement; Human trajectories; Markov decision processes; Continuous random walks;

    Abstract : Anonymous Call Detail Records (CDR’s) from mobile phone towers provide a unique opportunity to aggregate individual location data to overall human mobility patterns. Flowminder uses this data to improve the welfare of low- and middle-income countries. The movement patterns are studied through key measurements of mobility. READ MORE

  3. 3. Transport and retention of heavy metals in contaminated soil and groundwater : A case study from Pukeberg glassworks in Småland, Sweden

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Gitte Laallam; [2017]
    Keywords : Hydrology; hydrogeology; contaminated areas; heavy metals; hydrologi; hydrogeologi; förorenade områden; metaller;

    Abstract : As much as 80 000 sites, including landfills from glass production industries, are estimated to be contaminated in Sweden. One of these landfills is located near the glassworks factory of Pukeberg, in the municipality of Nybro, Southeast Sweden. READ MORE

  4. 4. Water Scarcity in Coastal Areas of Sweden : Assessment of water availability and reservoir sensitivity in Vindö, Värmdö municipality, based on climate change scenarios

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Josefine Sandberg; [2017]
    Keywords : ;

    Abstract : A groundwater assessment of north Vindö in Värmdö municipality has been conducted using a spatial analysis tool that is under development. Vindö is a coastal community characterized by surfaced-, or shallowly covered crystalline rock. READ MORE

  5. 5. Effects of spatial resolution,land-cover heterogeneity and different classification methods on accuracy of land-cover mapping

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Tweneboa Kwame Awuah; [2017]
    Keywords : image classification; spectral unmixing; random forest RF ; feature extraction; spatial resolution; heterogeneity; support vector machine SVM ; endmember extraction;

    Abstract : Despite improved spatial and spectral characteristics of satellite and aerial imaging systems, land-cover classification is still challenged by a continuously evolving and complex rural and urban landscape conditions resulting from diverse land-use scenarios. Sizes and material composition of impervious surfaces changes greatly from urban to rural areas, leading to varying spectral signatures and ultimately misclassification. READ MORE