Now showing items 121-140 of 289

  • Korrigering av modellestimert nedbør ved hjelp av historisk data. 

    Aabrekk, Mariann (The University of Bergen, 2010-06-01)
    I denne oppgåva er det sett på moglegheit for betring av modellestimert nedbør ved å korrigere modellerte nedbørsestimat ved hjelp av fleire ulike korreksjonsfaktorar som tar omsyn til ulike vêrtypar og nedbørsintensiteten. ...
    Master thesis
  • The linear stationary wave response to Arctic amplification related heating 

    Sellevold, Raymond (The University of Bergen, 2015-06-01)
    There has been a raft of manuscripts which claim to show that Arctic amplification (AA) is responsible for changes in the large-scale wintertime midlatitude atmospheric circulation. Responses to these studies have shown ...
    Master thesis
  • Linking Northern High-Latitude Cryospheric Changes to Large-Scale Atmospheric Circulation 

    Knudsen, Erlend Moster (The University of Bergen, 2015-03-20)
    Warming twice as fast as the rest of the globe, the northern high-latitudes arguably show the clearest evidences of observed and projected climate changes. Two of these are the rapid loss of Arctic sea ice and the shrinking ...
    Doctoral thesis
  • Local flow conditions in the Bergen valley based on observations and numerical simulations 

    Valved, Aslaug Skålevik (The University of Bergen, 2012-10-16)
    The complex topography and variability in surface roughness in the Bergen valley aff-ects the flow conditions in a multitude of ways. The steep mountains give shelter during strong synoptic flow, but the orography of Bergen ...
    Master thesis
  • Long-Term Retrospective Analysis of Mackerel Spawning in the North Sea: A New Time Series and Modeling Approach to CPR Data 

    Jansen, Teunis; Kristensen, Kasper; Payne, Mark; Edwards, Martin; Schrum, Corinna; Pitois, Sophie (Public Library of Science, 2012-06-21)
    We present a unique view of mackerel (Scomber scombrus) in the North Sea based on a new time series of larvae caught by the Continuous Plankton Recorder (CPR) survey from 1948-2005, covering the period both before and after ...
    Peer reviewedJournal article
  • Long-term surface pCO2 trends from observations and models 

    Tjiputra, Jerry; Olsen, Are; Bopp, Laurent; Lenton, Andrew; Pfeil, Benjamin; Roy, Tilla; Segschneider, Joachim; Totterdell, Ian; Heinze, Christoph (Co-Action PublishingThe International Meteorological Institute in Stockholm, 2014-05-19)
    We estimate regional long-term surface ocean pCO2 growth rates using all available underway and bottled biogeochemistry data collected over the past four decades. These observed regional trends are compared with those ...
    Journal article
  • Long-term variability of dust events in Iceland (1949-2011) 

    Dagsson-Waldhauserova, Pavla; Arnalds, Olafur; Ólafsson, Haraldur (Copernicus PublicationsEuropean Geosciences Union, 2014-12-16)
    The long-term frequency of atmospheric dust observations was investigated for the southern part of Iceland and interpreted together with earlier results obtained from northeastern (NE) Iceland (Dagsson-Waldhauserova et ...
    Journal article
  • Loss of sea ice during winter north of Svalbard 

    Onarheim, Ingrid Husøy; Smedsrud, Lars Henrik; Ingvaldsen, Randi; Nilsen, Frank (International Meteorological Institute, Stockholm University, 2014-06-05)
    Sea ice loss in the Arctic Ocean has up to now been strongest during summer. In contrast, the sea ice concentration north of Svalbard has experienced a larger decline during winter since 1979. The trend in winter ice area ...
    Journal article
  • Low Level Jet Streams at the Sea Ice Edge - Numerical Simulations using WRF 

    Keiderling, Stefan (The University of Bergen, 2013-06-03)
    The goal of the presented thesis is to investigate the formation of low level jets at the sea ice edge. Differential heating creates very sharp fronts at the ice edge. A transversal circulation, initiated by altered pressure ...
    Master thesis
  • Mapping the fugacity of CO2 in the Nordic Seas and the northern North Atlantic Ocean 

    Kvæstad, Elise (The University of Bergen, 2013-12-20)
    Self organizing maps (SOMs) have been used to estimate seawater fugacity of CO2 (fCO2) distribution in the Nordic Seas and the northern North Atlantic Ocean for 2005-2007. Four maps were produced for each region using ...
    Master thesis
  • Marine Wind and Wave Height Trends at Different ERA-Interim Forecast Ranges 

    Aarnes, Ole Johan; Abdalla, Saleh; Bidlot, Jean-Raymond; Breivik, Øyvind (American Meteorological Society, 2015-01-15)
    Trends in marine wind speed and significant wave height are investigated using the global reanalysis ERA-Interim over the period 1979–2012, based on monthly-mean and monthly-maximum data. Besides the traditional reanalysis, ...
    Journal article
  • Marine-based multiproxy reconstruction of Atlantic multidecadal variability 

    Svendsen, Lea; Hetzinger, Steffen; Keenlyside, Noel; Gao, Yongqi (WileyAmerican Geophysical Union, 2014-02-28)
    Atlantic multidecadal variability (AMV) is known to impact climate globally, and knowledge about the persistence of AMV is important for understanding past and future climate variability, as well as modeling and assessing ...
    Journal article
  • Mass balance of Nyainqen Tanglha glacier, Tibet, 1977 to 2001, derived by topographical maps and satellite images 

    Dong, Cai (The University of Bergen, 2004)
    NyainQen TangLha Glacier plays an important role in the Tibetan plateau’s climate system. Because of high altitude, steeply sloping terrain and difficult access, regular, systematic surveys of glacial variation are almost ...
    Master thesis
  • Målt og Modellert Globalstråling ved Ekofisk og i Nordområdene 

    Henden, Amelie (The University of Bergen, 2011-06-01)
    I dette arbeidet er globalstrålingsdata fra Ekofisk, Arktis og fastlandsstasjoner i Norge og Sverige studert. Stasjonene ligger mellom 56°N og 75°N, og all data er hentet fra perioden 2005 til og med 2010. Målinger i Arktis ...
    Master thesis
  • Målt og modellert UV-stråling i Bergen 

    Sætre, Ottar (The University of Bergen, 2006)
    Master thesis
  • Measured volume, heat, and salt fluxes from the Atlantic to the Arctic Mediterranean 

    Østerhus, Svein; Turrell, William R.; Jónsson, Steingrímur; Hansen, Bogi (American Geophysical Union, 2005-04-07)
    The flow of warm and saline Atlantic water towards the Arctic crosses the Greenland-Scotland Ridge in three current branches. Since the mid 1990's, extensive monitoring with quasi-permanent moorings and regular CTD cruises ...
    Journal article
  • Measured, modelled and satellite derived solar radiation in Scandinavia 

    Hagen, Linda (The Universitetet i Bergen, 2011-06-01)
    This article presents a comparison of global radiation data at different sites at the Scandinavian Peninsula. It makes use of ground truth, modelled and satellite derived surface global radiation data. First, a quality ...
    Master thesis
  • Measurement and evaluation of OH-airglow spectra over Svalbard 

    Nielsen, Kristian Pagh (The University of Bergen, 2001)
    Master thesis
  • A mechanical energy budget for the North Sea 

    Barthel, Knut; Gade, Herman G.; Sandal, Cathrine K. (Pergamon, 2004-06-29)
    A three-dimensional baroclinic numerical model is used to quantify the components of the mechanical energy budget for a semi-enclosed sea, the North Sea. As anticipated, tidal energy is the largest supplier of mechanical ...
    Journal article
  • Mechanisms affecting the transport of early stages of Norwegian Coastal Cod - a fjord study 

    Myksvoll, Mari Skuggedal (The University of Bergen, 2008-05-30)
    The fjord system of Sørfolda and Nordfolda situated in northern Norway is used in a model study. Particularly to explore the mechanisms causing separation and mixing of eggs from Arcto-Norwegian Cod (ANC) and Norwegian Coastal ...
    Master thesis