Sökning: "Tropospheric Ozone"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden Tropospheric Ozone.

  1. 1. Atmospheric Change and Potato. The Impact of tropospheric ozone and elevated carbon dioxide on tuber yield and quality

    Detta är en avhandling från Göteborg : University of Gothenburg

    Författare :Kristin Piikki; Göteborgs universitet.; Gothenburg University.; [2005]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bintje; carbohydrate; carbon dioxide; citric acid; cultivar; fructose; glucose; Kardal; macronutrient; malic acid; mineral; open-top chamber; OTC; ozone; potato; Solanum tuberosum; starch; variety; yield;

    Sammanfattning : .... LÄS MER

  2. 2. Air Pollution Dependency on Climate Variability and Source Region : Past, Current and Future Air Pollution Scenarios over Europe

    Detta är en avhandling från Stockholm : Department of Applied Environmental Science (ITM), Stockholm University

    Författare :Camilla Andersson; Stockholms universitet.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Acidification; Air Pollution; Climate Change; Europe; Numerical Model; Emission; Eutrophication; Key region; Nitrogen Dioxide; Particulate Matter; PM; Source region; Surface Ozone; Tropospheric Ozone; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap; tillämpad miljövetenskap; Applied Environmental Science;

    Sammanfattning : The main objectives of this thesis were to investigate the dependency of European air pollution on climate variability and emission source region. Calculations with a chemistry transport model (CTM) were conducted to investigate the influence of climate variability. LÄS MER

  3. 3. The Tropospheric Aerosol - Measurements and Modelling. Case studies in Tanzania and Southeast Asia and development of models for size resolved aerosol simulations on the regional scale

    Detta är en avhandling från Stockholm : Department of Applied Environmental Science (ITM), Stockholm University

    Författare :Cecilia Bennet; Göteborgs universitet.; Gothenburg University.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Aerosol; PM; Source assignment; Chemical Transport Modelling; Model inter-comparison; Sea salt emissions and Aerosol dynamics;

    Sammanfattning : The tropospheric aerosol is a complex constituent of the atmosphere that has impacts on health and the climate. This thesis presents five different studies from Tanzania, Southeast Asia and Europe dealing with urban measurements of particle mass and elemental composition, regional scale modelling of ozone and particle mass of inorganic aerosols and development of modules for sea salt emissions and size resolved aerosol particles with aerosol dynamical mechanisms implemented in a regional scale chemistry and transport model (CTM). LÄS MER

  4. 4. Lidar Measurements of Polar Stratospheric Clouds in the Arctic

    Detta är en avhandling från Stockholm : Department of Meteorology, Stockholm University

    Författare :Peggy Achtert; Stockholms universitet.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Atmospheric Sciences and Oceanography; atmosfärvetenskap och oceanografi;

    Sammanfattning : Polar Stratospheric Clouds (PSCs) play a key role for ozone depletion in the polar stratosphere. Its magnitude depends on the type of PSC and its lifetime and extent. This thesis presents PSC observations conducted with the Esrange lidar and the space-borne CALIPSO lidar.PSCs are separated into three types according to their optical properties. LÄS MER

  5. 5. Biogenic Halocarbons in Polar Sea Ice

    Detta är en avhandling från Stockholm : Department of Meteorology, Stockholm University

    Författare :Anna Granfors; Göteborgs universitet.; Gothenburg University.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Volatile biogenic halocarbons; Sea ice; Antarctica; ice-air flux; gases;

    Sammanfattning : Sea ice is to date a rather poorly investigated part of the cycling of volatile halogenated organic compounds, halocarbons. These compounds are natural sources of reactive iodine and bromine to the atmosphere, and are produced in the marine environment. LÄS MER