Sökning: "Precipitation extremes"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Precipitation extremes.

  1. 1. Kilometer-scale climate modeling of precipitation in the Nordic region

    Författare :Petter Lind; Erik Kjellström; Erik Kolstad; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Convection-permitting climate modeling; Precipitation; Extremes; Atmospheric convection; Nordic region; Climate change; Observations; Atmospheric Sciences and Oceanography; atmosfärvetenskap och oceanografi;

    Sammanfattning : Future changes in precipitation, in particular extremes, are among the most impact-relevant consequences of a warming climate driven by increases in atmospheric greenhouse gas concentrations. Still, climate model projections of future changes in regional and local precipitation remain uncertain. LÄS MER

  3. 2. On the representation of precipitation in high-resolution regional climate models

    Författare :Petter Lind; Erik Kjellström; Michael Tjernström; Jan Erik Haugen; Anna Rutgersson; Abdel Hannachi; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Regional climate modeling; high-resolution; convection parameterization; precipitation; extremes; statistical analysis; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography; meteorologi; Meteorology;

    Sammanfattning : Weather and climate models applied with sufficiently fine mesh grids to enable a large part of atmospheric deep convection to be explicitly resolved have shown a significantly improved representation of local, short-duration and intense precipitation events compared to coarser scale models. In this thesis, two studies are presented aimed at exploring the dependence of horizontal resolution and of parameterization of convection on the simulation of precipitation. LÄS MER

  4. 3. Simulated and observed change of precipitation and temperature in Europe with focus on the Greater Baltic Area

    Författare :Alexander Walther; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; climatology; precipitation; temperature; extremes; thermal growing season; diurnal cycle; regional climate model;

    Sammanfattning : The regional climate of the Greater Baltic Area is complex and varies at a multitude of scales in space and time. This thesis contributes to increased understanding of climate change and climate variability in this area focusing on four significant research topics. Droughts have a considerable ecological and socio-economic impact. LÄS MER

  5. 4. Observed and simulated changes in extreme precipitation and cold surges in China: 1961–2005

    Författare :Tinghai Ou; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Climate extremes; Precipitation; Cold surge; Siberian High; CMIP5; reanalysis; atmospheric circulation;

    Sammanfattning : In the present work, precipitation and temperature related climate extremes are examined, with a focus on Mainland China. The objectives of this study are a) to identify targeted climate extremes and their changes during the last decades, and b) to examine the ability of current global climate models to reproduce identified patterns of change. LÄS MER

  7. 5. Tropical cyclone induced extreme wind, rainfall, and floods in the Mekong River Basin

    Författare :Aifang Chen; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mekong River Basin; Climate extremes; Tropical cyclones; Precipitation; Floods; Satellite data; Reanalysis data;

    Sammanfattning : Increasing magnitude and frequency of climate extremes under global warming are threatening the socioeconomic development in many parts of the world. The Mekong River Basin (MRB) is a good example for how climate extremes can affect society, as the transboundary MRB has experienced hydroclimate changes and fast socioeconomic development during the past decades. LÄS MER