Aarhus University Seal / Aarhus Universitets segl

Nicolaj Krog Larsen

Mid- to late-Holocene oceanographic variability on the Southeast Greenland shelf

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Mid- to late-Holocene oceanographic variability on the Southeast Greenland shelf. / Andresen, C.S.; Hansen, M.J.; Seidenkrantz, Marit-Solveig; Jennings, A.E.; Knudsen, M.F.; Nørgaard-Pedersen, N.; Larsen, N.K.; Kuijpers, A.; Pearce, C.

I: Holocene, Bind 23, Nr. 2, 01.02.2013, s. 167-178.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Andresen, CS, Hansen, MJ, Seidenkrantz, M-S, Jennings, AE, Knudsen, MF, Nørgaard-Pedersen, N, Larsen, NK, Kuijpers, A & Pearce, C 2013, 'Mid- to late-Holocene oceanographic variability on the Southeast Greenland shelf', Holocene, bind 23, nr. 2, s. 167-178. https://doi.org/10.1177/0959683612460789

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CBE

MLA

Vancouver

Andresen CS, Hansen MJ, Seidenkrantz M-S, Jennings AE, Knudsen MF, Nørgaard-Pedersen N o.a. Mid- to late-Holocene oceanographic variability on the Southeast Greenland shelf. Holocene. 2013 feb 1;23(2):167-178. https://doi.org/10.1177/0959683612460789

Author

Andresen, C.S. ; Hansen, M.J. ; Seidenkrantz, Marit-Solveig ; Jennings, A.E. ; Knudsen, M.F. ; Nørgaard-Pedersen, N. ; Larsen, N.K. ; Kuijpers, A. ; Pearce, C. / Mid- to late-Holocene oceanographic variability on the Southeast Greenland shelf. I: Holocene. 2013 ; Bind 23, Nr. 2. s. 167-178.

Bibtex

@article{6465f22df7fb410c8762cd3caebee975,
title = "Mid- to late-Holocene oceanographic variability on the Southeast Greenland shelf",
abstract = "A reconstruction of oceanographic variability of the past 5800 years on the southeast Greenland shelf was obtained by analysing a combined marine sediment record based on two cores from the same site. Cores Fox04G/05R were retrieved from a side basin to a cross-shelf trough connecting the 900 m deep Sermilik Fjord with the Irminger Sea in the northwestern North Atlantic. The record was analysed in terms of grain size distribution, XRF and benthic and planktonic foraminiferal content and the chronology was obtained on the basis of 210Pb and 14C dating. The late-Holocene paleoceanographic variations in the record were characterised by a marked influence from the Irminger Current (IC) at the onset of the record at 5800 cal. yr BP and the regional Holocene Climatic Optimum between 5200 and 4200 cal. yr BP. After 3600 cal. yr BP Neoglacial cooling with increased influence of polar waters from the East Greenland Current (EGC) diminished the influence from the IC. Between 1500 and 700 cal. yr BP, the environment was highly dominated by cold low-salinity water masses characterised by sea ice forming locally and/or transported with an intensified EGC. At 700 cal. yr BP, concordant with the onset of the 'Little Ice Age', inflow of IC water masses intensified, notably during short-lived warming episodes of the North Atlantic Current most likely related to a contracted subpolar gyre. At the same time, the EGC polar water transport also intensified leading to a stratified water column on the shelf and this may have favoured entrainment of warm subsurface IC waters. Alternatively, the relatively warm rim of the eastern subpolar gyre may have promoted intense submarine melting of extended Southeast Greenland outlet glaciers at this time, producing enhanced meltwater outflow which favoured estuarine circulation processes maintaining the inflow of IC water masses.",
author = "C.S. Andresen and M.J. Hansen and Marit-Solveig Seidenkrantz and A.E. Jennings and M.F. Knudsen and N. N{\o}rgaard-Pedersen and N.K. Larsen and A. Kuijpers and C. Pearce",
year = "2013",
month = "2",
day = "1",
doi = "10.1177/0959683612460789",
language = "English",
volume = "23",
pages = "167--178",
journal = "Holocene",
issn = "0959-6836",
publisher = "SAGE Publications",
number = "2",

}

RIS

TY - JOUR

T1 - Mid- to late-Holocene oceanographic variability on the Southeast Greenland shelf

AU - Andresen, C.S.

AU - Hansen, M.J.

AU - Seidenkrantz, Marit-Solveig

AU - Jennings, A.E.

AU - Knudsen, M.F.

AU - Nørgaard-Pedersen, N.

AU - Larsen, N.K.

AU - Kuijpers, A.

AU - Pearce, C.

PY - 2013/2/1

Y1 - 2013/2/1

N2 - A reconstruction of oceanographic variability of the past 5800 years on the southeast Greenland shelf was obtained by analysing a combined marine sediment record based on two cores from the same site. Cores Fox04G/05R were retrieved from a side basin to a cross-shelf trough connecting the 900 m deep Sermilik Fjord with the Irminger Sea in the northwestern North Atlantic. The record was analysed in terms of grain size distribution, XRF and benthic and planktonic foraminiferal content and the chronology was obtained on the basis of 210Pb and 14C dating. The late-Holocene paleoceanographic variations in the record were characterised by a marked influence from the Irminger Current (IC) at the onset of the record at 5800 cal. yr BP and the regional Holocene Climatic Optimum between 5200 and 4200 cal. yr BP. After 3600 cal. yr BP Neoglacial cooling with increased influence of polar waters from the East Greenland Current (EGC) diminished the influence from the IC. Between 1500 and 700 cal. yr BP, the environment was highly dominated by cold low-salinity water masses characterised by sea ice forming locally and/or transported with an intensified EGC. At 700 cal. yr BP, concordant with the onset of the 'Little Ice Age', inflow of IC water masses intensified, notably during short-lived warming episodes of the North Atlantic Current most likely related to a contracted subpolar gyre. At the same time, the EGC polar water transport also intensified leading to a stratified water column on the shelf and this may have favoured entrainment of warm subsurface IC waters. Alternatively, the relatively warm rim of the eastern subpolar gyre may have promoted intense submarine melting of extended Southeast Greenland outlet glaciers at this time, producing enhanced meltwater outflow which favoured estuarine circulation processes maintaining the inflow of IC water masses.

AB - A reconstruction of oceanographic variability of the past 5800 years on the southeast Greenland shelf was obtained by analysing a combined marine sediment record based on two cores from the same site. Cores Fox04G/05R were retrieved from a side basin to a cross-shelf trough connecting the 900 m deep Sermilik Fjord with the Irminger Sea in the northwestern North Atlantic. The record was analysed in terms of grain size distribution, XRF and benthic and planktonic foraminiferal content and the chronology was obtained on the basis of 210Pb and 14C dating. The late-Holocene paleoceanographic variations in the record were characterised by a marked influence from the Irminger Current (IC) at the onset of the record at 5800 cal. yr BP and the regional Holocene Climatic Optimum between 5200 and 4200 cal. yr BP. After 3600 cal. yr BP Neoglacial cooling with increased influence of polar waters from the East Greenland Current (EGC) diminished the influence from the IC. Between 1500 and 700 cal. yr BP, the environment was highly dominated by cold low-salinity water masses characterised by sea ice forming locally and/or transported with an intensified EGC. At 700 cal. yr BP, concordant with the onset of the 'Little Ice Age', inflow of IC water masses intensified, notably during short-lived warming episodes of the North Atlantic Current most likely related to a contracted subpolar gyre. At the same time, the EGC polar water transport also intensified leading to a stratified water column on the shelf and this may have favoured entrainment of warm subsurface IC waters. Alternatively, the relatively warm rim of the eastern subpolar gyre may have promoted intense submarine melting of extended Southeast Greenland outlet glaciers at this time, producing enhanced meltwater outflow which favoured estuarine circulation processes maintaining the inflow of IC water masses.

UR - http://www.scopus.com/inward/record.url?scp=84872980934&partnerID=8YFLogxK

U2 - 10.1177/0959683612460789

DO - 10.1177/0959683612460789

M3 - Journal article

VL - 23

SP - 167

EP - 178

JO - Holocene

JF - Holocene

SN - 0959-6836

IS - 2

ER -