Sökning: "atmosfärvetenskap och oceanografi"

Visar resultat 1 - 5 av 41 avhandlingar innehållade orden atmosfärvetenskap och oceanografi.

  1. 1. The influence of clouds on Earth's radiation budget in global climate models

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

    Författare :Johannes Karlsson; Stockholms universitet.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences Meteorology; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap Meteorologi; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences Oceanography; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap Oceanografi; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

    Sammanfattning : Considering the high sensitivity of climate to changes in cloudiness, the way clouds might change in a perturbed climate is important for the total temperature response. In fact, the cloud feedback has been identified as the main uncertainty in future projections, as simulated by global climate models. LÄS MER

  2. 2. Dynamics and Variability of the Circulation in the North-Atlantic Subpolar Seas

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

    Författare :Léon Chafik; Stockholms universitet.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

    Sammanfattning : This thesis deals with the dynamics and circulation in the northern North Atlantic and the Nordic Seas, processes of crucial importance for the mild climate of Scandinavia and Northern Europe. High-resolution ADCP scans of currents from Greenland to Scotland in the top 400 m demonstrate that the Reykjanes Ridge is a very effective separator of flow towards the Nordic and Labrador Seas, respectively. LÄS MER

  3. 3. Asymptotic methods applied to some oceanography-related problems

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

    Författare :Moundheur Zarroug; Stockholms universitet.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Asymptotic analysis; internal waves; geophysical fluid dynamics; thermal oscillator; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences Oceanography; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap Oceanografi; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

    Sammanfattning : In this thesis a number of issues related to oceanographic problems have been dealt with on the basis of applying asymptotic methods.  The first study focused on the tidal generation of internal waves, a process which is quantifed by the conversion rates. These have traditionally been calculated by using the WKB approximation. LÄS MER

  4. 4. The mutual interaction between the time-mean atmospheric circulation and continental-scale ice sheets

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

    Författare :Johan Liakka; Stockholms universitet.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Atmospheric stationary waves; Paleo ice sheets; Ice-sheet ablation; Atmosphere-ice sheet modelling; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences Climatology; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap Klimatologi; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences Meteorology; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap Meteorologi; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

    Sammanfattning : Geomorphological evidence of glaciations exist for the Last Glacial Maximum (about 20 kyr ago). At this time, both North America and Eurasia were covered by extensive ice sheets which are both absent today. LÄS MER

  5. 5. Atmospheric dynamics and the hydrologic cycle in warm climates

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

    Författare :Henrik Carlson; Stockholms universitet.; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; superrotation; early Eocene; warm climates; Madden-Julian Oscillation; the hydrologic cycle; vegetation sensitivity; large-scale circulation; Atmospheric Sciences and Oceanography; atmosfärvetenskap och oceanografi;

    Sammanfattning : Past warm climates represent one extreme of Earth's known climate states. Here, we study warm climates in both idealized simulations and full-complexity general circulation model (GCM) simulations of the early Eocene epoch, approximately 50 million years ago. LÄS MER