Search for dissertations about: "wrf"

Showing result 1 - 5 of 7 swedish dissertations containing the word wrf.

  1. 1. Wind and atmospheric stability characteristics over the Baltic Sea

    University dissertation from Uppsala : Department of Earth Sciences, Uppsala University

    Author : Nina Svensson; Uppsala universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; coastal transition; stable conditions; boundary layer rolls; low level jet; WRF; Baltic Sea; Meteorologi; Meteorology;

    Abstract : In recent years there has been an increase in offshore wind energy, which poses the need for accurate wind speed estimates in the marine environment, especially in coastal areas where most wind turbines will be placed. This thesis is focused on the Baltic Sea, which is a small, semi-enclosed sea where land-sea interaction play an important role in explaining the wind patterns. READ MORE

  2. 2. Mesoscale Processes over the Baltic Sea

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Nina Svensson; Uppsala universitet.; [2018]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Boundary layer; Baltic Sea; stable conditions; low-level jet; sea breeze; boundary layer rolls; mesoscale effects; WRF; LIDAR;

    Abstract : The objective of this thesis is to study mesoscale processes above the Baltic Sea, which is a small, semi-enclosed sea where land-sea interaction may have a large impact on the offshore conditions. It is only the last tens of years that offshore research has become more popular, and one reason for this is the increasing offshore wind energy, which poses the need for accurate estimates of wind speed and turbulence conditions in the marine environment. READ MORE

  3. 3. Dispersion modelling of volcanic emissions

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Adam Dingwell; Uppsala universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; dispersion modelling; atmospheric; volcano; gas emissions; volcanic ash; FLEXPART; FLEXPART-WRF; Spridningsmodellering; atmosfär; vulkan; gasutsläpp; vulkanaska; FLEXPART; FLEXPART-WRF; Meteorologi; Meteorology;

    Abstract : Gases and particles released by volcanoes pose a serious hazard to humans and society. Emissions can be transported over long distances before being reduced to harmless concentrations. Knowing which areas are, or will be, exposed to volcanic emissions is an important part inreducing the impact on human health and society. READ MORE

  4. 4. Renal dysfunction in heart failure : insights on prevalence and prognosis

    University dissertation from Stockholm : Karolinska Institutet, Dept of Medicine, Huddinge

    Author : Ida Löfman; Karolinska Institutet.; Karolinska Institutet.; [2018]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : Background Kidney disease is common in heart failure (HF) and has been found to be associated with worse outcomes. The impact of different degrees of chronic kidney disease (CKD) in HF, as well as the link to, and impact of CKD in HF with reduced (HFrEF), the newly defined mid-range (HFmrEF) and preserved ejection fraction (HFpEF) have been uncertain. READ MORE

  5. 5. Enhanced block sparse signal recovery and bayesian hierarchical models with applications

    University dissertation from Umeå : Umeå University

    Author : Jianfeng Wang; Umeå universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Magnetic resonance imaging; Bayesian hierarchical models; Weather Research and Forecasting; Compressive sensing; Block sparsity; Multivariate isotropic symmetric a-stable distribution; q-ratio block constrained minimal singular value;

    Abstract : This thesis is carried out within two projects ‘Statistical modelling and intelligentdata sampling in Magnetic resonance imaging (MRI) and positron-emission tomography(PET) measurements for cancer therapy assessment’ and ‘WindCoE -Nordic Wind Energy Center’ during my PhD study. It mainly focuses on applicationsof Bayesian hierarchical models (BHMs) and theoretical developments ofcompressive sensing (CS). READ MORE