Geophysical Institute
Recent Submissions
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Boosting effect of strong western pole of the Indian Ocean Dipole on the decay of El Niño events
(Journal article; Peer reviewed, 2024)The Indian Ocean Basin (IOB) mode is believed to favor the decay of El Niño via modulating the zonal wind anomalies in the western equatorial Pacific, while the contribution of the Indian Ocean Dipole (IOD) mode to the ... -
Thermodynamic and dynamic contributions to the abrupt increased winter Arctic sea ice growth since 2008
(Journal article; Peer reviewed, 2024)The area of Arctic winter sea ice growth (WSIG) has expanded dramatically since winter 2008. Yet the thermodynamic and dynamic contributions to the abrupt increase in WSIG remain unclear. Here using an ice concentration ... -
Upstream influence of midlatitude jet stream biases in boreal summer
(Journal article; Peer reviewed, 2024)Climate models exhibit biases in the mean state and in variability across different regions of the Earth. For example, atmosphere-only models have a poleward bias in summertime jet streams across the Northern Hemisphere ... -
Post-depositional modification on seasonal-to-interannual timescales alters the deuterium-excess signals in summer snow layers in Greenland
(Journal article; Peer reviewed, 2024)We document the isotopic evolution of near-surface snow at the East Greenland Ice Core Project (EastGRIP) ice core site in northeast Greenland using a time-resolved array of 1 m deep isotope (δ18O, δD) profiles. The snow ... -
An emerging pathway of Atlantic Water to the Barents Sea through the Svalbard Archipelago: Drivers and variability
(Journal article; Peer reviewed, 2024)The Barents Sea, an important component of the Arctic Ocean, is experiencing changes in its ocean currents, stratification, sea ice variability, and marine ecosystems. Inflowing Atlantic Water (AW) is a key driver of these ... -
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, ... -
Experimental Characterization of Propeller-Induced Flow (PIF) below a Multi-Rotor UAV
(Journal article; Peer reviewed, 2024-02-20)The availability of multi-rotor UAVs with lifting capacities of several kilograms allows for a new paradigm in atmospheric measurement techniques, i.e., the integration of research-grade sonic anemometers for airborne ... -
Advancing annual global mean surface temperature prediction to 2 months lead using physics based strategy
(Journal article; Peer reviewed, 2024)Interannual global mean surface temperature (GMST) forecast provides critical insights into the economic and societal implications of climate variability. The pronounced GMST elevation in 2023–2024 indicates that the Earth ... -
Arctic Sea Ice Variations in the First Half of the 20th Century: A New Reconstruction Based on Hydrometeorological Data
(Journal article; Peer reviewed, 2024)The shrinking Arctic sea-ice area (SIA) in recent decades is a striking manifestation of the ongoing climate change. Variations of the Arctic sea ice have been continuously observed by satellites since 1979, relatively ... -
Observed change and the extent of coherence in the Gulf Stream system
(Journal article; Peer reviewed, 2024)By transporting warm and salty water poleward, the Gulf Stream system maintains a mild climate in northwestern Europe while also facilitating the dense water formation that feeds the deep ocean. The sensitivity of North ... -
Assessing the tropical Atlantic biogeochemical processes in the Norwegian Earth System Model
(Journal article; Peer reviewed, 2024)State-of-the-art Earth system models exhibit large biases in their representation of the tropical Atlantic hydrography, with potential large impacts on both climate and ocean biogeochemistry projections. This study ... -
Climate change impacts on small pelagic fish distribution in Northwest Africa: trends, shifts, and risk for food security
(Journal article; Peer reviewed, 2024)Climate change is recognised to lead to spatial shifts in the distribution of small pelagic fish, likely by altering their environmental optima. Fish supply along the Northwest African coast is significant at both ... -
Rotary-wing drone-induced flow - Comparison of simulations with lidar measurements
(Journal article; Peer reviewed, 2024)Ultrasonic anemometers mounted on rotary-wing drones have the potential to provide a cost-efficient alternative to the classical meteorological mast-mounted counterpart for atmospheric boundary layer research. However, the ... -
Ocean heat transport across Antarctic continental shelves in response to atmospheric forcing
(Doctoral thesis, 2024-12-17)Kontinentalsokkelen rundt Antarktis beskytter de enorme isbremmene i sør fra det varme (dvs., varmere enn havets frysepunkt ved overflaten) dyphavet i nord som omkranser kontinentet. Likevel har det skjedd store endringer ... -
Circulation and Hydrography in the Northwestern Barents Sea: Insights From Recent Observations and Historical Data (1950–2022)
(Journal article; Peer reviewed, 2024)The Barents Sea is one of the main pathways for warm and saline Atlantic Water (AW) entering the Arctic Ocean. It is an important region where water mass transformation and dense-water production contribute to the Atlantic ... -
Sea state contributions to thermosteric sea-level in high-resolution ocean-wave coupled simulations
(Journal article; Peer reviewed, 2024)This study examines the impact of wave-induced processes (WIPs) in modulating thermosteric sea-level changes, highlighting the need to include these processes in future sea-level rise assessments and climate projections. ... -
The Crucial Role of the Subpolar North Atlantic for Skillful Decadal Climate Predictions
(Journal article; Peer reviewed, 2024)We investigate the role of the subpolar North Atlantic (SPNA) for downstream predictability, using two decadal climate prediction systems. We use the subpolar extreme cold and fresh anomaly event developing in winter ... -
WCD Ideas: Teleconnections through weather rather than stationary waves
(Journal article; Peer reviewed, 2024)Conventionally, teleconnections in the atmosphere are described by correlations between monthly mean fields. These correlations are supposedly caused by stationary Rossby waves. The main hypothesis explored in this idea ... -
Dynamical reconstruction of the upper-ocean state in the central Arctic during the winter period of the MOSAiC expedition
(Journal article; Peer reviewed, 2024)This paper presents a methodological tool for dynamic reconstruction of the state of the ocean, based, as an example, on observations from the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) ... -
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, ...
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