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Nicolaj Krog Larsen

Holocene history of the Helheim Glacier, southeast Greenland

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

Standard

Holocene history of the Helheim Glacier, southeast Greenland. / Bjørk, A. A.; Larsen, N. K.; Olsen, J.; Goldsack, A. E.; Kjeldsen, K. K.; Morlighem, M.; Andresen, C. S.; Rasmussen, P.; Oxfeldt, G.; Kjær, K. H.

I: Quaternary Science Reviews, Bind 193, 01.08.2018, s. 145-158.

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

Harvard

Bjørk, AA, Larsen, NK, Olsen, J, Goldsack, AE, Kjeldsen, KK, Morlighem, M, Andresen, CS, Rasmussen, P, Oxfeldt, G & Kjær, KH 2018, 'Holocene history of the Helheim Glacier, southeast Greenland', Quaternary Science Reviews, bind 193, s. 145-158. https://doi.org/10.1016/j.quascirev.2018.06.018

APA

Bjørk, A. A., Larsen, N. K., Olsen, J., Goldsack, A. E., Kjeldsen, K. K., Morlighem, M., ... Kjær, K. H. (2018). Holocene history of the Helheim Glacier, southeast Greenland. Quaternary Science Reviews, 193, 145-158. https://doi.org/10.1016/j.quascirev.2018.06.018

CBE

Bjørk AA, Larsen NK, Olsen J, Goldsack AE, Kjeldsen KK, Morlighem M, Andresen CS, Rasmussen P, Oxfeldt G, Kjær KH. 2018. Holocene history of the Helheim Glacier, southeast Greenland. Quaternary Science Reviews. 193:145-158. https://doi.org/10.1016/j.quascirev.2018.06.018

MLA

Vancouver

Bjørk AA, Larsen NK, Olsen J, Goldsack AE, Kjeldsen KK, Morlighem M o.a. Holocene history of the Helheim Glacier, southeast Greenland. Quaternary Science Reviews. 2018 aug 1;193:145-158. https://doi.org/10.1016/j.quascirev.2018.06.018

Author

Bjørk, A. A. ; Larsen, N. K. ; Olsen, J. ; Goldsack, A. E. ; Kjeldsen, K. K. ; Morlighem, M. ; Andresen, C. S. ; Rasmussen, P. ; Oxfeldt, G. ; Kjær, K. H. / Holocene history of the Helheim Glacier, southeast Greenland. I: Quaternary Science Reviews. 2018 ; Bind 193. s. 145-158.

Bibtex

@article{e30864426e3b4263a3ad6a5e40bd89ab,
title = "Holocene history of the Helheim Glacier, southeast Greenland",
abstract = "Helheim Glacier ranks among the fastest flowing and most ice discharging outlets of the Greenland Ice Sheet (GrIS). After undergoing rapid speed-up in the early 2000s, understanding its long-term mass balance and dynamic has become increasingly important. Here, we present the first record of direct Holocene ice-marginal changes of the Helheim Glacier following the initial deglaciation. By analysing cores from lakes adjacent to the present ice margin, we pinpoint periods of advance and retreat. We target threshold lakes, which receive glacial meltwater only when the margin is at an advanced position, similar to the present. We show that, during the period from 10.5 to 9.6 cal ka BP, the extent of Helheim Glacier was similar to that of todays, after which it remained retracted for most of the Holocene until a re-advance caused it to reach its present extent at c. 0.3 cal ka BP, during the Little Ice Age (LIA). Thus, Helheim Glacier's present extent is the largest since the last deglaciation, and its Holocene history shows that it is capable of recovering after several millennia of warming and retreat. Furthermore, the absence of advances beyond the present-day position during for example the 9.3 and 8.2 ka cold events as well as the early-Neoglacial suggest a substantial retreat during most of the Holocene.",
author = "Bj{\o}rk, {A. A.} and Larsen, {N. K.} and J. Olsen and Goldsack, {A. E.} and Kjeldsen, {K. K.} and M. Morlighem and Andresen, {C. S.} and P. Rasmussen and G. Oxfeldt and Kj{\ae}r, {K. H.}",
year = "2018",
month = "8",
day = "1",
doi = "10.1016/j.quascirev.2018.06.018",
language = "English",
volume = "193",
pages = "145--158",
journal = "Quaternary Science Reviews",
issn = "0277-3791",
publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - Holocene history of the Helheim Glacier, southeast Greenland

AU - Bjørk, A. A.

AU - Larsen, N. K.

AU - Olsen, J.

AU - Goldsack, A. E.

AU - Kjeldsen, K. K.

AU - Morlighem, M.

AU - Andresen, C. S.

AU - Rasmussen, P.

AU - Oxfeldt, G.

AU - Kjær, K. H.

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Helheim Glacier ranks among the fastest flowing and most ice discharging outlets of the Greenland Ice Sheet (GrIS). After undergoing rapid speed-up in the early 2000s, understanding its long-term mass balance and dynamic has become increasingly important. Here, we present the first record of direct Holocene ice-marginal changes of the Helheim Glacier following the initial deglaciation. By analysing cores from lakes adjacent to the present ice margin, we pinpoint periods of advance and retreat. We target threshold lakes, which receive glacial meltwater only when the margin is at an advanced position, similar to the present. We show that, during the period from 10.5 to 9.6 cal ka BP, the extent of Helheim Glacier was similar to that of todays, after which it remained retracted for most of the Holocene until a re-advance caused it to reach its present extent at c. 0.3 cal ka BP, during the Little Ice Age (LIA). Thus, Helheim Glacier's present extent is the largest since the last deglaciation, and its Holocene history shows that it is capable of recovering after several millennia of warming and retreat. Furthermore, the absence of advances beyond the present-day position during for example the 9.3 and 8.2 ka cold events as well as the early-Neoglacial suggest a substantial retreat during most of the Holocene.

AB - Helheim Glacier ranks among the fastest flowing and most ice discharging outlets of the Greenland Ice Sheet (GrIS). After undergoing rapid speed-up in the early 2000s, understanding its long-term mass balance and dynamic has become increasingly important. Here, we present the first record of direct Holocene ice-marginal changes of the Helheim Glacier following the initial deglaciation. By analysing cores from lakes adjacent to the present ice margin, we pinpoint periods of advance and retreat. We target threshold lakes, which receive glacial meltwater only when the margin is at an advanced position, similar to the present. We show that, during the period from 10.5 to 9.6 cal ka BP, the extent of Helheim Glacier was similar to that of todays, after which it remained retracted for most of the Holocene until a re-advance caused it to reach its present extent at c. 0.3 cal ka BP, during the Little Ice Age (LIA). Thus, Helheim Glacier's present extent is the largest since the last deglaciation, and its Holocene history shows that it is capable of recovering after several millennia of warming and retreat. Furthermore, the absence of advances beyond the present-day position during for example the 9.3 and 8.2 ka cold events as well as the early-Neoglacial suggest a substantial retreat during most of the Holocene.

U2 - 10.1016/j.quascirev.2018.06.018

DO - 10.1016/j.quascirev.2018.06.018

M3 - Journal article

VL - 193

SP - 145

EP - 158

JO - Quaternary Science Reviews

JF - Quaternary Science Reviews

SN - 0277-3791

ER -