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Journal articles on the topic 'Sub-polar gyre'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Berx, Barbara, and Mark R. Payne. "The Sub-Polar Gyre Index – a community data set for application in fisheries and environment research." Earth System Science Data 9, no. 1 (2017): 259–66. http://dx.doi.org/10.5194/essd-9-259-2017.

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Abstract. Scientific interest in the sub-polar gyre of the North Atlantic Ocean has increased in recent years. The sub-polar gyre has contracted and weakened, and changes in circulation pathways have been linked to changes in marine ecosystem productivity. To aid fisheries and environmental scientists, we present here a time series of the Sub-Polar Gyre Index (SPG-I) based on monthly mean maps of sea surface height. The established definition of the SPG-I is applied, and the first EOF (empirical orthogonal function) and PC (principal component) are presented. Sensitivity to the spatial domain

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2

Biri, Stavroula, and Birgit Klein. "North Atlantic Sub‐Polar Gyre Climate Index: A New Approach." Journal of Geophysical Research: Oceans 124, no. 6 (2019): 4222–37. http://dx.doi.org/10.1029/2018jc014822.

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3

Pedchenko, Andrey P. "The role of interannual environmental variations in the geographic range of spawning and feeding concentrations of redfish Sebastes mentella in the Irminger Sea." ICES Journal of Marine Science 62, no. 7 (2005): 1501–10. http://dx.doi.org/10.1016/j.icesjms.2005.08.004.

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Abstract The Irminger Sea is occupied by the most abundant population of the redfish, Sebastes mentella, in the North Atlantic. Results of Russian and international surveys of redfish in the Irminger Sea between 1982 and 2003 are summarized here. Interannual variations in redfish spatial distribution and oceanographic conditions are also analysed. Distribution patterns of spawning and feeding concentrations of redfish are established, and the role of oceanographic factors in the formation of concentrations and in the migrations of redfish are shown. The habitat of the mature redfish population

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4

Mark, Payne, Egan Afra, MM Fässler Sascha, et al. "The rise and fall of the NE Atlantic blue whiting (Micromesistius poutassou)." Marine Biology Research 8, no. 5-6 (2012): 475–87. https://doi.org/10.1080/17451000.2011.639778.

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The Northeast Atlantic blue whiting (Micromesistius poutassou) stock has undergone striking changes in abundance in the last 15 years. The stock increased dramatically in the late 1990s due to a succession of eight unusually strong year classes and dropped again equally dramatically after 2005 when the recruitment collapsed to former levels. The North Atlantic subpolar gyre has previously been shown to have a strong influence on the behaviour of this stock: synchronous changes in the gyre and recruitment suggest a causal linkage and the possibility of forecasting recruitment. A range of mechan

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5

Pickart, Robert S., Michael A. Spall, and John R. N. Lazier. "Mid-depth ventilation in the western boundary current system of the sub-polar gyre." Deep Sea Research Part I: Oceanographic Research Papers 44, no. 6 (1997): 1025–54. http://dx.doi.org/10.1016/s0967-0637(96)00122-7.

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6

Jungclaus, J. H., K. Lohmann, and D. Zanchettin. "Enhanced 20th century heat transfer to the Arctic simulated in the context of climate variations over the last millennium." Climate of the Past Discussions 10, no. 4 (2014): 2895–924. http://dx.doi.org/10.5194/cpd-10-2895-2014.

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Abstract. Oceanic heat transport variations, carried by the northward flowing Atlantic Water, strongly influence Arctic sea-ice distribution, ocean–atmosphere exchanges, and pan-Arctic temperatures. Paleoceanographic reconstructions from marine sediments near Fram Strait have documented a dramatic increase in Atlantic Water temperatures over the 20th century, unprecedented in the last millennium. Here we present results from Earth system model simulations over the last millennium that reproduce and explain reconstructed integrated quantities such as pan-Arctic temperature evolution during the

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7

Le Moigne, F. A. C., M. Boye, A. Masson, et al. "Description of the biogeochemical features of the subtropical southeastern Atlantic and the Southern Ocean south off South Africa during the austral summer of the International Polar Year." Biogeosciences Discussions 9, no. 4 (2012): 5011–48. http://dx.doi.org/10.5194/bgd-9-5011-2012.

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Abstract. Meridional and vertical distributions of several biogeochemical parameters were studied along a section in the southeastern Atlantic and the Southern Ocean south of South Africa during the austral summer 2008 of the International Polar Year to characterize the biogeochemical provinces and to assess the seasonal net diatom production. Based on analyses of macro-nutrients, ammonium (NH4), chlorophyll a, (chl a) phaeopigments, biogenic silica (BSi), particulate inorganic carbon (PIC), and particulate organic carbon and nitrogen (POC and PON, respectively) four biogeochemical domains wer

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8

HERSTEINSSON, PALL, YORAM YOM-TOV, and ELI GEFFEN. "Effect of Sub-Polar Gyre, North Atlantic Oscillation and ambient temperature on size and abundance in the Icelandic Arctic fox." Global Change Biology 15, no. 6 (2009): 1423–33. http://dx.doi.org/10.1111/j.1365-2486.2008.01765.x.

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9

Le Moigne, F. A. C., M. Boye, A. Masson, et al. "Description of the biogeochemical features of the subtropical southeastern Atlantic and the Southern Ocean south of South Africa during the austral summer of the International Polar Year." Biogeosciences 10, no. 1 (2013): 281–95. http://dx.doi.org/10.5194/bg-10-281-2013.

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Abstract. Meridional and vertical distributions of several biogeochemical parameters were studied along a section in the southeastern Atlantic and the Southern Ocean south of South Africa during the austral summer 2008 of the International Polar Year to characterize the biogeochemical provinces and to assess the seasonal net diatom production. Based on analyses of macro-nutrients, ammonium (NH4), chlorophyll a, (Chl a), phaeopigments, biogenic silica (BSi), particulate inorganic carbon (PIC), and particulate organic carbon and nitrogen (POC and PON, respectively), four biogeochemical domains w

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10

Fan, Xiaoyang, Yanlu Qiao, Xin Gao, and Xiao-Hua Zhang. "Nocardioides pacificus sp. nov., isolated from deep sub-seafloor sediment." International Journal of Systematic and Evolutionary Microbiology 64, Pt_7 (2014): 2217–22. http://dx.doi.org/10.1099/ijs.0.059873-0.

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A Gram-stain-positive, strictly aerobic, rod-shaped, non-motile bacterium, designated strain XH274T, was isolated from a deep sub-seafloor sediment sample collected from the South Pacific Gyre (41° 58′ S 163° 11′ W) during the Integrated Ocean Drilling Program (IODP) Expedition 329. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain XH274T belonged to the genus Nocardioides and shared the highest 16S rRNA gene sequence similarity with Nocardioides kribbensis KSL-2T (96.81 %), Nocardioides daedukensis MDN22T (96.74 %) and Nocardioides psychrotolerans RHLT2-1T (96.61 %)

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11

Brunette, Charles, L. Bruno Tremblay, and Robert Newton. "A new state-dependent parameterization for the free drift of sea ice." Cryosphere 16, no. 2 (2022): 533–57. http://dx.doi.org/10.5194/tc-16-533-2022.

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Abstract. Free-drift estimates of sea ice motion are necessary to produce a seamless observational record combining buoy and satellite-derived sea ice motion vectors. We develop a new parameterization for the free drift of sea ice based on wind forcing, wind turning angle, sea ice state variables (thickness and concentration), and estimates of the ocean currents. Given the fact that the spatial distribution of the wind–ice–ocean transfer coefficient has a similar structure to that of the spatial distribution of sea ice thickness, we take the standard free-drift equation and introduce a wind–ic

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12

Koenigk, Torben, Ramon Fuentes-Franco, Virna L. Meccia, et al. "Deep mixed ocean volume in the Labrador Sea in HighResMIP models." Climate Dynamics 57, no. 7-8 (2021): 1895–918. http://dx.doi.org/10.1007/s00382-021-05785-x.

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AbstractSimulations from seven global coupled climate models performed at high and standard resolution as part of the high resolution model intercomparison project (HighResMIP) are analyzed to study deep ocean mixing in the Labrador Sea and the impact of increased horizontal resolution. The representation of convection varies strongly among models. Compared to observations from ARGO-floats and the EN4 data set, most models substantially overestimate deep convection in the Labrador Sea. In four out of five models, all four using the NEMO-ocean model, increasing the ocean resolution from 1° to 1

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13

Logemann, K., and I. H. Harms. "High resolution modelling of the North Icelandic Irminger Current (NIIC)." Ocean Science Discussions 3, no. 4 (2006): 1149–89. http://dx.doi.org/10.5194/osd-3-1149-2006.

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Abstract. The northward inflow of Atlantic Water through Denmark Strait – the North Icelandic Irminger Current (NIIC) – is simulated with a numerical model of the North Atlantic and Arctic Ocean. The model uses the technique of adaptive grid refinement which allows a high spatial resolution (1 km horizontal, 10 m vertical) around Iceland. The model is used to assess time and space variability of volume and heat fluxes for the years 1997–2003. Passive tracers are applied to study origin and composition of NIIC water masses. The NIIC originates from two sources: the Irminger Current, flowing as

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14

Logemann, K., and I. Harms. "High resolution modelling of the North Icelandic Irminger Current (NIIC)." Ocean Science 2, no. 2 (2006): 291–304. http://dx.doi.org/10.5194/os-2-291-2006.

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Abstract. The northward inflow of Atlantic Water through Denmark Strait – the North Icelandic Irminger Current (NIIC) – is simulated with a numerical model of the North Atlantic and Arctic Ocean. The model uses the technique of adaptive grid refinement which allows a high spatial resolution (1 km horizontal, 10 m vertical) around Iceland. The model is used to assess time and space variability of volume and heat fluxes for the years 1997–2003. Passive tracers are applied to study origin and composition of NIIC water masses. The NIIC originates from two sources: the Irminger Current, flowing as

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15

Bracegirdle, Thomas J., Hua Lu, and Jon Robson. "Early-winter North Atlantic low-level jet latitude biases in climate models: implications for simulated regional atmosphere-ocean linkages." Environmental Research Letters 17, no. 1 (2021): 014025. http://dx.doi.org/10.1088/1748-9326/ac417f.

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Abstract Climate model biases in the North Atlantic (NA) low-level tropospheric westerly jet are a major impediment to reliably representing variability of the NA climate system and its wider influence, in particular over western Europe. A major aspect of the biases is the occurrence of a prominent early-winter equatorward jet bias in Coupled Model Inter-comparison Project Phase 5 (CMIP5) models that has implications for NA atmosphere-ocean coupling. Here we assess whether this bias is reduced in the new CMIP6 models and assess implications for model representation of NA atmosphere-ocean linka

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16

Sherwin, T. J., D. Aleynik, E. Dumont, and M. E. Inall. "Deep drivers of mesoscale circulation in the central Rockall Trough." Ocean Science 11, no. 3 (2015): 343–59. http://dx.doi.org/10.5194/os-11-343-2015.

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Abstract. Mesoscale variability in the central Rockall Trough, immediately west of the British Isles, has been investigated using a combination of ship-borne, underwater glider and gridded satellite altimeter measurements. Altimeter observations show that eddies and large-scale circulation cells are ubiquitous phenomena. They have horizontal length scales of order 100 km with vertical scales of over 1000 m and are associated with mean current speeds (over the upper 1000 m) of 15 ± 7 cm s−1. Monthly area averaged surface eddy kinetic energy (EKE) has substantial inter-annual variability, which

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17

Ambrosimov, A. K., N. A. Diansky, A. A. Kluvitkin, and V. A. Melnikov. "LONG-TERM VARIABILITY OF CURRENTS IN THE SUBARCTIC FRONT OF THE ATLANTIC OCEAN." Journal of Oceanological Research 47, no. 2 (2019): 246–65. http://dx.doi.org/10.29006/1564-2291.jor-2019.47(2).15.

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Based on time series of near-bottom current velocities and temperatures obtained in the period June, 2016 to July, 2017, at three points in the Atlantic Subarctic Front, along with the use of multi-year (since 1993 up to now) satellite ocean surface sounding data, multi-scale fluctuations of ocean surface and near-bottom flows over the western and eastern flanks of the Reykjanes ridge, as well as near Hatton Rise, on the Rokoll plateau, are studied. Hydrological profiles were carried out from the ocean surface to the bottom with readings every 10 m, when setting and retrieving the buoy station

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18

Matthews, J. Brian. "Physics of Climate Change: Harmonic and exponential processes from in situ ocean time series observations show rapid asymmetric warming." JOURNAL OF ADVANCES IN PHYSICS 6, no. 2 (2014): 1135–71. http://dx.doi.org/10.24297/jap.v6i2.6960.

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Analyses of rare ocean timeseries in the top few meters show logarithmic and exponential processes control anthropogenic global warming (AGW) of which 93% is in the oceans. Processes result in asymmetric heat capture in the North and South tropical Pacific. A new Lagrangian paradigm established a global ocean surface freshwater and heat conveyor. Climate research wrongly assumed atmospheric pan-evaporation at sea as over land, a 10m well-mixed surface layer, and ignored that seawater density depends on both salinity and temperature. In situ observations show two different heat-capture and evap

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19

Planchon, F., A. J. Cavagna, D. Cardinal, L. André, and F. Dehairs. "Late summer particulate organic carbon export and twilight zone remineralisation in the Atlantic sector of the Southern Ocean." Biogeosciences 10, no. 2 (2013): 803–20. http://dx.doi.org/10.5194/bg-10-803-2013.

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Abstract. As part of the GEOTRACES Bonus-GoodHope (BGH) expedition (January–March 2008) in the Atlantic sector of the Southern Ocean, particulate organic carbon (POC) export was examined from the surface to the mesopelagic twilight zone using water column distributions of total 234Th and biogenic particulate Ba (Baxs). Surface POC export production was estimated from steady state and non steady state modelling of 234Th fluxes, which were converted into POC fluxes, using the POC/234Th ratio of large, potentially sinking particles (> 53 μm) collected via in situ pumps. Deficits in 234Th activ

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20

Melnichenko, Oleg, Peter Hacker, and Vasco Müller. "Observations of Mesoscale Eddies in Satellite SSS and Inferred Eddy Salt Transport." Remote Sensing 13, no. 2 (2021): 315. http://dx.doi.org/10.3390/rs13020315.

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Observations of sea surface salinity (SSS) from NASA’s Soil Moisture Active-Passive (SMAP) and ESA’s Soil Moisture and Ocean Salinity (SMOS) satellite missions are used to characterize and quantify the contribution of mesoscale eddies to the ocean transport of salt. Given large errors in satellite retrievals and, consequently, SSS maps, we evaluate two products from the two missions and also use two different methods to assess the eddy transport of salt. Comparing the two missions, we find that the estimates of the eddy transport of salt agree very well, particularly in the tropics and subtrop

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21

Malanotte-Rizzoli, P., V. Artale, G. L. Borzelli-Eusebi, et al. "Physical forcing and physical/biochemical variability of the Mediterranean Sea: a review of unresolved issues and directions for future research." Ocean Science Discussions 10, no. 4 (2013): 1205–80. http://dx.doi.org/10.5194/osd-10-1205-2013.

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Abstract. The importance of the Mediterranean Sea for the world ocean has long been recognized. First, the Mediterranean sea has a profound impact on the Atlantic ocean circulation and, consequently, on the global thermohaline conveyor belt. Maps of the Mediterranean salty water tongue exiting from the Gibraltar strait at intermediate depths and spreading throughout the Atlantic interior are well known since the 1950s. Through direct pathways to the Atlantic polar regions or through indirect mixing processes, the salty Mediterranean water preconditions the deep convection cells of the polar At

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22

Gao, J., Y. Wang, C. W. Wang, and B. H. Lu. "First Report of Bacterial Root Rot of Ginseng Caused by Pseudomonas aeruginosa in China." Plant Disease 98, no. 11 (2014): 1577. http://dx.doi.org/10.1094/pdis-03-14-0276-pdn.

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Ginseng (Panax ginseng) is an economically valuable medicinal herb mainly planted in Jilin Province, China. In September 2013, during harvest, suspected bacterial rots were observed on ginseng roots with about 10% incidence in Fusong County, Jilin Province, China (127°29.48′ N, 42°11.12′ E). Rotted roots completely lost their economic value. Symptoms on roots began as water-soaked lesions, and developed rapidly into a soft, watery, decayed mass within 3 to 5 days. Three diseased root tissues were surface-sterilized in 70% ethanol for 30 s, rinsed 3 times in sterilized water and cut into small

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23

Richardson, Katherine, and Jørgen Bendtsen. "Distinct Seasonal Primary Production Patterns in the Sub-Polar Gyre and Surrounding Seas." Frontiers in Marine Science 8 (December 9, 2021). http://dx.doi.org/10.3389/fmars.2021.785685.

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Primary production (PP) in the sub-polar region appears to be important for ocean carbon uptake but how the different water masses contribute to the PP occurring here has not yet been described. Using two models based on satellite observations of surface chlorophyll, light and temperature, seasonal patterns in the distribution of PP are shown here to differ in the sub-polar gyre south of the Greenland-Scotland Ridge (GSR) and surrounding water masses. Monthly averages of PP (2003–2013) were determined. Total and seasonal PP were similar in both models. Average PP in five of the domains (0.47–0

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24

Richardson, Katherine, and Jørgen Bendtsen. "Distinct Seasonal Primary Production Patterns in the Sub-Polar Gyre and Surrounding Seas." Frontiers in Marine Science. Physical Oceanography 8 (December 9, 2021). https://doi.org/10.3389/fmars.2021.785685.

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Primary production (PP) in the sub-polar region appears to be important for ocean carbon uptake but how the different water masses contribute to the PP occurring here has not yet been described. Using two models based on satellite observations of surface chlorophyll, light and temperature, seasonal patterns in the distribution of PP are shown here to differ in the sub-polar gyre south of the Greenland-Scotland Ridge (GSR) and surrounding water masses. Monthly averages of PP (2003–2013) were determined. Total and seasonal PP were similar in both models. Average PP in five of the domains (

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25

Brune, Sebastian, and Vimal Koul. "Impact of ocean data assimilation on the sub‐polar North Atlantic in MPI‐ESM." Quarterly Journal of the Royal Meteorological Society, January 15, 2025. https://doi.org/10.1002/qj.4922.

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AbstractInitialisation of decadal climate predictions with Earth system models in the North Atlantic commonly relies on simultaneous data assimilation of the observed state of both the atmosphere and ocean. Under this coupled data assimilation approach, the actual contribution of oceanic data assimilation in initialising predictions remains unclear. In this study we analyse how assimilation of oceanic sub‐surface temperature and salinity adds to atmospheric assimilation in terms of impact on upper‐ocean heat content and ocean dynamics in the sub‐polar North Atlantic in the Max Planck Institute

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26

Haider, Md Nurul, Md Mehedi Iqbal, Masahiko Nishimura, Eiko Ikemoto, Minoru Ijichi, and Kazuhiro Kogure. "Bacterial response to glucose addition: growth and community structure in seawater microcosms from North Pacific Ocean." Scientific Reports 13, no. 1 (2023). http://dx.doi.org/10.1038/s41598-022-27251-2.

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AbstractOnboard microcosm experiments were conducted to assess how bacterial growth pattern and community structure changed by the addition of labile organic compound during the KH-14-2 cruise of R/V Hakuho Maru (Atmosphere and Ocean Research Institute, the University of Tokyo and JAMSTEC) in May–June 2014. Seawater samples were collected from the three diversified oceanic environments, Kuroshio Current, North Pacific Sub-polar Gyre (SPG), and North Pacific Sub-tropical Gyre (STG) in the western North Pacific Ocean, filtered, supplemented with glucose, and incubated at 23 ± 1 °C, ~ 4 °C, and 2

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27

Saporta‐Katz, Ori, Nadav Mantel, Rotem Liran, Vered Rom‐Kedar, and Hezi Gildor. "Northbound Transport of the Mediterranean Outflow and the Role of Time‐Dependent Chaotic Advection." Geophysical Research Letters 51, no. 12 (2024). http://dx.doi.org/10.1029/2023gl105662.

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AbstractThe Mediterranean Sea releases approximately 1 Sv of water into the North Atlantic through the Gibraltar Straits, forming the saline Mediterranean Outflow Water (MOW). Its impact on large‐scale flow and specifically its northbound Lagrangian pathways are widely debated, yet a comprehensive overview of MOW pathways over recent decades is lacking. We calculate and analyze synthetic Lagrangian trajectories in 1980–2020 reanalysis velocity data. Sixteen percent of the MOW follow a direct northbound path to the sub‐polar gyre, reaching a 1,000 m depth crossing window at the southern tip of

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28

HERSTEINSSON, PALL, YORAM YOM-TOV, and ELI GEFFEN. "The effect of the sub-polar gyre, North Atlantic Oscillation and ambient temperature on size and abundance in the Icelandic Arctic fox." Global Change Biology, November 2008. http://dx.doi.org/10.1111/j.1365-2486.2008.01816.x.

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29

Jenkins, W. J., S. C. Doney, A. Seltzer, C. R. German, D. E. Lott, and K. L. Cahill. "A North Pacific Meridional Section (U.S. GEOTRACES GP15) of Helium Isotopes and Noble Gases II: Shallow Distributions." Journal of Geophysical Research: Oceans 130, no. 2 (2025). https://doi.org/10.1029/2024jc021737.

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AbstractThe distribution of helium isotopes in the upper kilometer of the water column along the GP15 section in the central Pacific reflects the large‐scale patterns of upwelling hydrothermal 3He in the tropics and sub‐polar gyre, tracing two important pathways whereby bottom water exits from the deep Pacific. Heavy noble gas saturation anomalies, particularly in the upper two hundred meters of the water column, are more strongly increased by seasonal radiative heating, while lighter noble gas saturation anomalies are increased more by air injection processes. A similar, seasonally persistent

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30

Emberson-Marl, H., R. L. Coppock, M. Cole, et al. "Microplastics in the Arctic: a transect through the Barents Sea." Frontiers in Marine Science 10 (August 14, 2023). http://dx.doi.org/10.3389/fmars.2023.1241829.

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Globally, the abundance of microplastics in our oceans is increasing, including within the remote locations of the polar regions. The Barents Sea, which adjoins the Arctic Ocean, is an area of high primary productivity that, owing to the convergence of regional currents, has been mooted as a potential sixth ocean gyre that may coalesce high concentrations of plastic debris. This study aimed to explore data collected from large volume samples of sub-surface water collected from transects through the Barents Sea to quantify and characterise microplastics in this region, with a focus on potential

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31

Fox, Aislinn, та Brett D. Walker. "Sources and Cycling of Particulate Organic Matter in Baffin Bay: A Multi-Isotope δ13C, δ15N, and Δ14C Approach". Frontiers in Marine Science 9 (23 травня 2022). http://dx.doi.org/10.3389/fmars.2022.846025.

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The Canadian Arctic is warming three times faster than the rest of the planet. The impact of climate change on the Arctic carbon cycle, and in particular for Baffin Bay, remains poorly constrained. Sinking particulate organic matter (POMsink) is a key component of the biological carbon pump and provides a direct linkage between surface productivity and the preservation of carbon in marine sediments. While POMsink provides a rapid POM shunt to the deep ocean (days) the majority of marine POM is suspended (POMsusp) persists for years in the water column. Stable carbon (δ13C), nitrogen (δ15N) and

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32

T., J. Sherwin, Aleynik D., Dumont E., and E. Inall M. "Deep drivers of mesoscale circulation in the central Rockall Trough." May 12, 2015. https://doi.org/10.5194/os-11-343-2015.

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Mesoscale variability in the central Rockall Trough, immediately west of the British Isles, has been investigated using a combination of ship-borne, underwater glider and gridded satellite altimeter measurements. Altimeter observations show that eddies and large-scale circulation cells are ubiquitous phenomena. They have horizontal length scales of order 100 km with vertical scales of over 1000 m and are associated with mean current speeds (over the upper 1000 m) of 15 ± 7 cm s<sup>−1</sup>. Monthly area averaged surface eddy kinetic energy (EKE) has substantial inter-annual varia

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