Sökning: "atmospheric concentration"

Visar resultat 1 - 5 av 189 avhandlingar innehållade orden atmospheric concentration.

  1. 1. Atmospheric wet deposition : aspects on areal and temporal variations in the concentration/deposition field

    Författare :Lennart Granat; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  3. 2. Atmospheric circulation regimes and climate change

    Författare :Jenny Brandefelt; Erland Källén; Jonas Nycander; Vim Verkley; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; atmospheric large-scale circulation; greenhouse gas forcing; climate sensitivity; Meteorology; Meteorologi;

    Sammanfattning : The Earth's atmosphere is expected to warm in response to increasing atmospheric concentrations of greenhouse gases (GHG). The response of the Earth's complex and chaotic climate system to the GHG emissions is, however, difficult to assess. In this thesis, two issues of importance for the assessment of this response are studied. LÄS MER

  4. 3. Characterization of soot in air and rain over southern Asia

    Författare :Erik J. Engström; Caroline Leck; Henning Rodhe; Paolo Laj; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; soot; black carbon; atmospheric concentration; light absorption; wet deposition; scavenging; wash-out ratio; South-Asia.; Atmosphere and hydrosphere sciences; Atmosfärs- och hydrosfärsvetenskap;

    Sammanfattning : Filter-based optical measurements of light absorbing particulate matter at awavelength of about 550 nm, here referred to as soot, in air and rainwaterhave been performed during the period from 1st June 2005 to 31th May 2009at Godavari in Nepal, Sinhagad in India and Hanimaadhoo in The Maldives.A method for determination of water-insoluble light absorbing matter inrainwater has been developed. LÄS MER

  5. 4. On the recent Arctic Warming

    Författare :Rune Grand Graversen; Michael Tjernström; Erland Källén; John Walsh; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Climate change; atmospheric energy transport; Meteorology; Meteorologi; atmosfärvetenskap; Atmospheric Sciences;

    Sammanfattning : The Arctic region attracts considerable scientific interest in these years. Some of the Earth's most pronounced signs of the recent climate change are found here. The summer sea-ice cover is shrinking at an alarming rate. At the same time the region warms faster than the rest of the globe. LÄS MER

  7. 5. Atmospheric DMS in the High Arctic

    Författare :Jenny Lundén; Gunilla Svensson; Caroline Leck; Leonor Tarrason; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DMS; Modelling; Arctic; Meteorology; Meteorologi; meteorologi; Meteorology;

    Sammanfattning : During the Arctic summer when the anthropogenic influence is limited, the natural marine source of sulfur in the form of gas-phase dimethyl sulfide viz. DMS(g), is of great importance for cloud formation. LÄS MER