Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation
Atlantic Water (AW) advection plays an important role in climatic, oceanographic and environmental conditions in the eastern Arctic. Situated along the only deep connection between the Atlantic and the Arctic oceans, the Svalbard Archipelago is an ideal location to reconstruct the past AW advection...
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Copernicus Publications
2017
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Online Access: | https://doi.org/10.5194/cp-13-1717-2017 https://www.clim-past.net/13/1717/2017/cp-13-1717-2017.pdf https://doaj.org/article/cf38b144c2994c02bd4c59bcd77ef04f |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:cf38b144c2994c02bd4c59bcd77ef04f 2023-05-15T15:02:09+02:00 Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation M. Bartels J. Titschack K. Fahl R. Stein M.-S. Seidenkrantz C. Hillaire-Marcel D. Hebbeln 2017-11-01 https://doi.org/10.5194/cp-13-1717-2017 https://www.clim-past.net/13/1717/2017/cp-13-1717-2017.pdf https://doaj.org/article/cf38b144c2994c02bd4c59bcd77ef04f en eng Copernicus Publications doi:10.5194/cp-13-1717-2017 1814-9324 1814-9332 https://www.clim-past.net/13/1717/2017/cp-13-1717-2017.pdf https://doaj.org/article/cf38b144c2994c02bd4c59bcd77ef04f undefined Climate of the Past, Vol 13, Pp 1717-1749 (2017) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2017 fttriple https://doi.org/10.5194/cp-13-1717-2017 2023-01-22T17:32:56Z Atlantic Water (AW) advection plays an important role in climatic, oceanographic and environmental conditions in the eastern Arctic. Situated along the only deep connection between the Atlantic and the Arctic oceans, the Svalbard Archipelago is an ideal location to reconstruct the past AW advection history and document its linkage with local glacier dynamics, as illustrated in the present study of a 275 cm long sedimentary record from Woodfjorden (northern Spitsbergen; water depth: 171 m) spanning the last ∼ 15 500 years. Sedimentological, micropalaeontological and geochemical analyses were used to reconstruct changes in marine environmental conditions, sea ice cover and glacier activity. Data illustrate a partial break-up of the Svalbard–Barents Sea Ice Sheet from Heinrich Stadial 1 onwards (until ∼ 14.6 ka). During the Bølling–Allerød ( ∼ 14.6–12.7 ka), AW penetrated as a bottom water mass into the fjord system and contributed significantly to the destabilization of local glaciers. During the Younger Dryas ( ∼ 12.7–11.7 ka), it intruded into intermediate waters while evidence for a glacier advance is lacking. A short-term deepening of the halocline occurred at the very end of this interval. During the early Holocene ( ∼ 11.7–7.8 ka), mild conditions led to glacier retreat, a reduced sea ice cover and increasing sea surface temperatures, with a brief interruption during the Preboreal Oscillation ( ∼ 11.1–10.8 ka). Due to a ∼ 6000-year gap, the mid-Holocene is not recorded in this sediment core. During the late Holocene ( ∼ 1.8–0.4 ka), a slightly reduced AW inflow and lower sea surface temperatures compared to the early Holocene are reconstructed. Glaciers, which previously retreated to the shallower inner parts of the Woodfjorden system, likely advanced during the late Holocene. In particular, topographic control in concert with the reduced summer insolation partly decoupled glacier dynamics from AW advection during this recent interval. Article in Journal/Newspaper Arctic Barents Sea glacier Ice Sheet Sea ice Svalbard Svalbard-Barents Sea Ice sheet Woodfjord* Woodfjorden Spitsbergen Unknown Arctic Barents Sea Svalbard Svalbard Archipelago Woodfjorden ENVELOPE(14.000,14.000,79.833,79.833) Climate of the Past 13 12 1717 1749 |
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fttriple |
language |
English |
topic |
geo envir |
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geo envir M. Bartels J. Titschack K. Fahl R. Stein M.-S. Seidenkrantz C. Hillaire-Marcel D. Hebbeln Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation |
topic_facet |
geo envir |
description |
Atlantic Water (AW) advection plays an important role in climatic, oceanographic and environmental conditions in the eastern Arctic. Situated along the only deep connection between the Atlantic and the Arctic oceans, the Svalbard Archipelago is an ideal location to reconstruct the past AW advection history and document its linkage with local glacier dynamics, as illustrated in the present study of a 275 cm long sedimentary record from Woodfjorden (northern Spitsbergen; water depth: 171 m) spanning the last ∼ 15 500 years. Sedimentological, micropalaeontological and geochemical analyses were used to reconstruct changes in marine environmental conditions, sea ice cover and glacier activity. Data illustrate a partial break-up of the Svalbard–Barents Sea Ice Sheet from Heinrich Stadial 1 onwards (until ∼ 14.6 ka). During the Bølling–Allerød ( ∼ 14.6–12.7 ka), AW penetrated as a bottom water mass into the fjord system and contributed significantly to the destabilization of local glaciers. During the Younger Dryas ( ∼ 12.7–11.7 ka), it intruded into intermediate waters while evidence for a glacier advance is lacking. A short-term deepening of the halocline occurred at the very end of this interval. During the early Holocene ( ∼ 11.7–7.8 ka), mild conditions led to glacier retreat, a reduced sea ice cover and increasing sea surface temperatures, with a brief interruption during the Preboreal Oscillation ( ∼ 11.1–10.8 ka). Due to a ∼ 6000-year gap, the mid-Holocene is not recorded in this sediment core. During the late Holocene ( ∼ 1.8–0.4 ka), a slightly reduced AW inflow and lower sea surface temperatures compared to the early Holocene are reconstructed. Glaciers, which previously retreated to the shallower inner parts of the Woodfjorden system, likely advanced during the late Holocene. In particular, topographic control in concert with the reduced summer insolation partly decoupled glacier dynamics from AW advection during this recent interval. |
format |
Article in Journal/Newspaper |
author |
M. Bartels J. Titschack K. Fahl R. Stein M.-S. Seidenkrantz C. Hillaire-Marcel D. Hebbeln |
author_facet |
M. Bartels J. Titschack K. Fahl R. Stein M.-S. Seidenkrantz C. Hillaire-Marcel D. Hebbeln |
author_sort |
M. Bartels |
title |
Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation |
title_short |
Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation |
title_full |
Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation |
title_fullStr |
Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation |
title_full_unstemmed |
Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation |
title_sort |
atlantic water advection vs. glacier dynamics in northern spitsbergen since early deglaciation |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/cp-13-1717-2017 https://www.clim-past.net/13/1717/2017/cp-13-1717-2017.pdf https://doaj.org/article/cf38b144c2994c02bd4c59bcd77ef04f |
long_lat |
ENVELOPE(14.000,14.000,79.833,79.833) |
geographic |
Arctic Barents Sea Svalbard Svalbard Archipelago Woodfjorden |
geographic_facet |
Arctic Barents Sea Svalbard Svalbard Archipelago Woodfjorden |
genre |
Arctic Barents Sea glacier Ice Sheet Sea ice Svalbard Svalbard-Barents Sea Ice sheet Woodfjord* Woodfjorden Spitsbergen |
genre_facet |
Arctic Barents Sea glacier Ice Sheet Sea ice Svalbard Svalbard-Barents Sea Ice sheet Woodfjord* Woodfjorden Spitsbergen |
op_source |
Climate of the Past, Vol 13, Pp 1717-1749 (2017) |
op_relation |
doi:10.5194/cp-13-1717-2017 1814-9324 1814-9332 https://www.clim-past.net/13/1717/2017/cp-13-1717-2017.pdf https://doaj.org/article/cf38b144c2994c02bd4c59bcd77ef04f |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-13-1717-2017 |
container_title |
Climate of the Past |
container_volume |
13 |
container_issue |
12 |
container_start_page |
1717 |
op_container_end_page |
1749 |
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1766334134089678848 |