Browsing Geophysical Institute by Title
Now showing items 606-625 of 1293
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Linking Future Precipitation Changes to Weather Features in CESM2-LE
(Journal article; Peer reviewed, 2024)Weather features, such as extratropical cyclones, atmospheric rivers (ARs), and fronts, contribute to substantial amounts of precipitation globally and are associated with different precipitation characteristics. However, ... -
Linking Instantaneous and Climatological Perspectives on Eddy-Driven and Subtropical Jets
(Journal article; Peer reviewed, 2023)The distinction between eddy-driven and subtropical jets is conceptually important and well-founded based on different driving mechanisms and dominant types of variability. This climatological perspective may be augmented ... -
Linking Northern High-Latitude Cryospheric Changes to Large-Scale Atmospheric Circulation
(Doctoral thesis, 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 ... -
Linking Sub-Tropical Evaporation and Extreme Precipitation Over East Antarctica: An Atmospheric River Case Study
(Journal article; Peer reviewed, 2021)We investigate an intense snowfall event between 15 and 18 February 2011 over the East Antarctic coastal region which contributed to roughly 24% of the annual snow accumulation. The event was previously associated with an ... -
Local flow conditions in the Bergen valley based on observations and numerical simulations
(Master thesis, 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 ... -
Local-scale deposition of surface snow on the Greenland ice sheet
(Journal article; Peer reviewed, 2021)Ice cores from polar ice sheets and glaciers are an important climate archive. Snow layers, consecutively deposited and buried, contain climatic information from the time of their formation. However, particularly ... -
The Lofoten Basin Eddy: three years of evolution as observed by Seagliders
(Peer reviewed; Journal article, 2017-08)The Lofoten Basin in the Norwegian Sea is an area where the warm Atlantic Water is subject to the greatest heat losses anywhere in the Nordic Seas. A long-lived, deep, anticyclonic eddy is located in the central part of ... -
Lofoten eddies observed by Seagliders
(Master thesis, 2018-11-22)When the Norwegian Atlantic Current passes the Lofoten Basin, it loses a large amount of mass and heat to mesoscale eddies as a result of instabilities of the mean current along the Norwegian Slope. The eddies subsequently ... -
Long term simulations of potential oil spills around Cuba
(Journal article; Peer reviewed, 2021)Simulations over eight years of continuous surface oil spills around Cuba are carried out to identify the most likely stranding (beaching) locations. The open source Lagrangian oil drift model OpenOil is applied with high ... -
Long-term changes in stratification and convection in the Nordic Seas : An observational perspective
(Doctoral thesis, 2025-01-21)I løpet av de siste tiårene har de Nordiske Hav gjennomgått en endring mot høyere temperatur og lavere tetthet. I Grønlandshavet ble den tyngste vannmassen i de Nordiske Hav dannet gjennom konveksjon som nådde helt til ... -
Long-term climatological trends driving the recent warming along the Angolan and Namibian coasts
(Journal article; Peer reviewed, 2024)The coastal regions off Angola and Namibia are renowned for their highly productive marine ecosystems in the southeast Atlantic. In recent decades, these regions have undergone significant long-term changes. In this study, ... -
Long-term intercomparison of two pCO2 instruments based on ship-of-opportunity measurements in a dynamic shelf sea environment
(Journal article; Peer reviewed, 2021)The partial pressure of carbon dioxide (pCO2) in surface seawater is an important biogeochemical variable because, together with the pCO2 in the atmosphere, it determines the direction of air–sea carbon dioxide exchange. ... -
Long-Term Retrospective Analysis of Mackerel Spawning in the North Sea: A New Time Series and Modeling Approach to CPR Data
(Peer reviewed; Journal article, 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 ... -
Long-Term Statistics of Observed Bubble Depth Versus Modeled Wave Dissipation
(Journal article; Peer reviewed, 2020)Air bubble penetration depths are investigated with a bottom‐mounted echosounder at a seabed observatory in northern Norway. We compare a 1‐year time series of observed bubble depth against modeled and estimated turbulent ... -
Long-term surface pCO2 trends from observations and models
(Peer reviewed; Journal article, 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 ... -
Long-term trends in surface ocean pH in the North Atlantic
(Peer reviewed; Journal article, 2014-05)Presently available direct pH measurements do not have a sufficient data density in space or time in order to determine long-term trends across wider geographic regions, limiting our ability to assess the magnitude and ... -
Long-term variability of dust events in Iceland (1949-2011)
(Peer reviewed; Journal article, 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 ... -
Long-time principal geodesic analysis in director-based dynamics of hybrid mechanical systems
(Journal article; Peer reviewed, 2023)In this article, we investigate an extended version of principal geodesic analysis for the unit sphere S2 and the special orthogonal group SO(3). In contrast to prior work, we address the construction of long-time smooth ... -
Loop current variability as trigger of coherent gulf stream transport anomalies
(Journal article; Peer reviewed, 2019)Satellite observations and output from a high-resolution ocean model are used to investigate how the Loop Current in the Gulf of Mexico affects the Gulf Stream transport through the Florida Straits. We find that the expansion ... -
Loss of sea ice during winter north of Svalbard
(Peer reviewed; Journal article, 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 ...