Sökning: "digital elevation model"

Visar resultat 16 - 20 av 48 avhandlingar innehållade orden digital elevation model.

  1. 16. Water quality modeling based on landscape analysis: importance of riparian hydrology

    Författare :Thomas Grabs; Jan Seibert; Kevin Bishop; Hjalmar Laudon; Brian McGlynn; Georgia Destouni; Irena Creed; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Water quality model; terrain analysis; geographical information system GIS; riparian zone; total organic carbon TOC; boreal catchments; Hydrology; Hydrologi; geografi med naturgeografisk inriktning; Physical Geography;

    Sammanfattning : Several studies in high-latitude catchments have demonstrated the importance of near-stream riparian zones as hydrogeochemical hotspots with a substantial influence on stream chemistry. An adequate representation of the spatial variability of riparian-zone processes and characteristics is the key for modeling spatio-temporal variations of stream-water quality. LÄS MER

  3. 17. Geoid Model of Tanzania from Sparse and Varying Gravity Data Density by the KTH method

    Författare :Prosper Ulotu; Lars Sjöberg; Hossein Nahavandchi; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Geoid; sparse gravity data; gravity database; GGM validation by gravity; corrector surface; hybrid geoid; KTH-LSMS with AC; Mt. Kilimanjaro; Tanzania.; Earth sciences; Geovetenskap;

    Sammanfattning : Developed countries are striving to achieve a cm geoid model. Most developing countries/regions think that the situation in their areas does not allow even a few decimetre geoid model. GNSS, which provides us with position, is one of the greatest achievements of the present time. LÄS MER

  4. 18. Spatial variations of the urban climate and its influence on thermal comfort and behaviour

    Författare :Fredrik Lindberg; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sky view factor; air temperature; surface temperature; GIS; raster modelling; mean radiant temperature; globe temperature; the SOLWIEG-model; human behaviour; outdoor activity;

    Sammanfattning : The increased number of people living in urban areas emphasises the need for an improved understanding of how the urban climate affects human activity and behaviour. The spatial and temporal variation of climate within cities is an important factor in people’s health and well-being. LÄS MER

  5. 19. Population Pharmacodynamic Modeling and Methods for D2-receptor Antagonists

    Författare :Klas Petersson; Lena Friberg; Mats Karlsson; An Vermeulen; Robert Bies; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; population modeling; schizophrenia; D2-antagonists; pharmacodynamics; drug development;

    Sammanfattning : Early predictions of a potential drug candidate’s time-course of effect and side-effects, based on models describing drug concentrations, drug effects and disease progression, would be valuable to make drug development more efficient. Pharmacodynamic modeling can incorporate and propagate prior knowledge and be used for simulations of different scenarios. LÄS MER

  7. 20. Clinical Outcomes of Transcatheter Aortic Valve Implantation (TAVI)

    Författare :Konrad Nilsson; Stefan James; Christina Christersson; Giovanna Sarno; Henrik Schirmer; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; transcatheter aortic valve implantation; aortic stenosis; clinical outcomes; risk prediction; geographical differences; coronary artery disease; Cardiology; Kardiologi;

    Sammanfattning : Aortic stenosis (AS) is the most common valvular heart disease and most prevalent in the elderly. In the latest decades, a new method for replacement of the aortic valve: transcatheter aortic valve implantation (TAVI) has been introduced. LÄS MER