Blar i Faculty of Mathematics and Natural Sciences på tidsskrift "Journal of Geophysical Research (JGR): Oceans"
Viser treff 1-20 av 30
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Along‐stream, seasonal, and interannual variability of the North Icelandic Irminger Current and East Icelandic Current around Iceland
(Journal article; Peer reviewed, 2020)Data from repeat hydrographic surveys over the 25-year period 1993 to 2017, together with satellite altimetry data, are used to quantify the temporal and spatial variability of the North Icelandic Irminger Current (NIIC), ... -
Atlantic Water Boundary Current Along the Southern Yermak Plateau, Arctic Ocean
(Journal article; Peer reviewed, 2023)The major ocean current that carries heat into the Arctic Ocean splits into three main branches of Atlantic Water (AW) and recirculations when it encounters the Yermak Plateau (YP) located north of Svalbard. While the ... -
Atlantic Water Circulation and Properties Northwest of Svalbard During Anomalous Southerly Winds
(Journal article; Peer reviewed, 2022)Atlantic Water (AW), the main source of heat and salt for the Arctic Ocean, undergoes large transformations (cooling and freshening) north of Svalbard as it flows near the surface above the Yermak Plateau (YP). In September ... -
Atlantic Water Inflow Through the Yermak Pass Branch: Evolution Since 2007
(Journal article; Peer reviewed, 2022)Thirty-four months (2017–2020) of mooring data were recently obtained at 80.6°N, 7.26°E in the main branch of Atlantic Water inflow to the Arctic, the Yermak Pass Branch. The Yermak Pass Branch was sampled at that same ... -
Atlantic water properties, transport and heat loss from mooring observations north of Svalbard
(Journal article; Peer reviewed, 2022)The Atlantic Water inflow to the Arctic Ocean is transformed and modified in the area north of Svalbard, which influences the Arctic Ocean heat and salt budget. Year-round observations are relatively sparse in this region ... -
Biogeochemical Timescales of Climate Change Onset and Recovery in the North Atlantic Interior Under Rapid Atmospheric CO2 Forcing
(Journal article; Peer reviewed, 2022)Anthropogenic climate change footprints in the ocean go beyond the mixed layer depth, with considerable impacts throughout mesopelagic and deep-ocean ecosystems. Yet, little is known about the timing of these environmental ... -
Characteristics and Transformation of Pacific Winter Water on the Chukchi Sea Shelf in Late Spring
(Peer reviewed; Journal article, 2019)Data from a late spring survey of the northeast Chukchi Sea are used to investigate various aspects of newly ventilated winter water (NVWW). More than 96% of the water sampled on the shelf was NVWW, the saltiest (densest) ... -
Decadal Changes in Ventilation and Anthropogenic Carbon in the Nordic Seas
(Journal article; Peer reviewed, 2023)We evaluate the decadal evolution of ventilation and anthropogenic carbon (Cant) in the Nordic Seas between 1982 and the 2010s. Ventilation changes on decadal timescale are identified by evaluating decadal changes in mean ... -
Evolution and Transformation of the North Icelandic Irminger Current Along the North Iceland Shelf
(Journal article; Peer reviewed, 2022)The North Icelandic Irminger Current (NIIC) flowing northward through Denmark Strait is the main source of salt and heat to the north Iceland shelf. We quantify its along-stream evolution using the first high-resolution ... -
The Impact of a Reduced High-Wind Charnock Parameter on Wave Growth With Application to the North Sea, the Norwegian Sea, and the Arctic Ocean
(Journal article; Peer reviewed, 2022)As atmospheric models move to higher resolution and resolve smaller scales, the maximum modeled wind speed also tends to increase. Wave models tuned to coarser wind fields tend to overestimate the wave growth under strong ... -
Interannual Variabilities of Nutrients and Phytoplankton off the Changjiang Estuary in Response to Changing River Inputs
(Journal article; Peer reviewed, 2020)Coastal ecosystems are strongly influenced by terrestrial inputs of freshwater, sediments, and nutrients, particularly in a megariver estuary of the Changjiang River. A remarkable increase in nutrient loading from the ... -
Large decadal changes in air-sea CO2 fluxes in the Caribbean Sea
(Peer reviewed; Journal article, 2019)Sixteen years of surface water CO2 data from autonomous systems on cruise ships sailing in the Caribbean Sea and Western North Atlantic show marked changes on interannual timescales. The measured changes in fugacity (≈partial ... -
Lateral Heat Transport in the Lofoten Basin: Near-Surface Pathways and Subsurface Exchange
(Peer reviewed; Journal article, 2019)The Lofoten Basin in the Nordic Seas plays a central role in the Atlantic overturning circulation by acting as a reservoir for the warm and saline Atlantic Water flow toward the Arctic Ocean. The mass and heat exchange ... -
Long-term Observations Reveal Environmental Conditions and Food Supply Mechanisms at an Arctic Deep-Sea Sponge Ground
(Journal article; Peer reviewed, 2021)Deep-sea sponge grounds are hotspots of benthic biomass and diversity. To date, very limited data exist on the range of environmental conditions in areas containing deep-sea sponge grounds and which factors are driving ... -
Observations of Turbulence at a Near-Surface Temperature Front in the Arctic Ocean
(Journal article; Peer reviewed, 2020)High-resolution ocean temperature, salinity, current, and turbulence data were collected at an Arctic thermohaline front in the Nansen Basin. The front was close to the sea ice edge and separated the cold and fresh surface ... -
Observed Changes in the Arctic Freshwater Outflow in Fram Strait
(Journal article; Peer reviewed, 2022)We have updated time series of liquid fresh water transport (FWT) in the East Greenland Current (EGC) in the western Fram Strait with mooring observations since 2015. Novel data have been used to correct earlier estimates ... -
On the Groupiness and Intermittency of Oceanic Whitecaps
(Journal article; Peer reviewed, 2022)The enhancement of wave breaking activity during wave group passage is investigated using coherent field observations of the instantaneous sea surface elevation and whitecap coverage from platform-based stereo video ... -
On the Origins of Open Ocean Oxygen Minimum Zones
(Journal article; Peer reviewed, 2023)Recent work suggests that Oxygen Minimum Zones (OMZs) are sustained by the supply of oxygen-poor waters rather than the export of organic matter from the local surface layer and its subsequent remineralization inside OMZs. ... -
Optical Insight Into Riverine Influences on Dissolved and Particulate Organic Carbon in a Coastal Arctic Lagoon System
(Journal article; Peer reviewed, 2023)Arctic coastal margins receive organic material input from rivers, melted sea ice, and coastal erosion, phenomena that are all undergoing changes related to global climate. The optical properties of coastal Arctic waters ... -
Pathways and Water Mass Transformation Along and Across the Mohn‐Knipovich Ridge in the Nordic Seas
(Journal article; Peer reviewed, 2020)Atlantic Water takes various pathways through the Nordic Seas, and its transformation to denser waters forms a crucial connection to the lower limb of the Atlantic Meridional Overturning Circulation. Circulation maps often ...