Coralline Algae Archive Fjord Surface Water Temperatures in Southwest Greenland
One of the most dramatic signs of ongoing global change is the mass loss of the Greenland Ice Sheet and the resulting rise in sea level, whereby most of the recent ice sheet mass loss can be attributed to an increase in meltwater runoff. The retreat and thinning of Greenland glaciers has been caused...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/377534 2023-11-12T04:17:37+01:00 Coralline Algae Archive Fjord Surface Water Temperatures in Southwest Greenland Williams, Siobhan Halfar, Jochen Zack, Thomas Hetzinger, Steffen Blicher, Martin Juul-Pedersen, Thomas Kronz, Andreas Noël, Brice van den Broeke, Michiel van de Berg, Willem Jan Sub Dynamics Meteorology Marine and Atmospheric Research 2018-08-01 application/pdf https://dspace.library.uu.nl/handle/1874/377534 en eng 2169-8953 https://dspace.library.uu.nl/handle/1874/377534 info:eu-repo/semantics/OpenAccess coralline algae glacial runoff sea surface temperature Taverne Geophysics Forestry Oceanography Aquatic Science Ecology Water Science and Technology Soil Science Geochemistry and Petrology Earth-Surface Processes Atmospheric Science Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Palaeontology Article 2018 ftunivutrecht 2023-11-01T23:20:10Z One of the most dramatic signs of ongoing global change is the mass loss of the Greenland Ice Sheet and the resulting rise in sea level, whereby most of the recent ice sheet mass loss can be attributed to an increase in meltwater runoff. The retreat and thinning of Greenland glaciers has been caused by rising air and ocean temperatures over the past decades. Despite the global scale impact of the changing ice sheet balance, estimates of glacial runoff in Greenland rarely extend past several decades, thus limiting our understanding of long-term glacial response to temperature. Here we present a 42-year long annually resolved red coralline algal Mg/Ca proxy temperature record from a southwestern Greenland fjord, with temperature ranging from 1.5 to 4 °C (standard error = 1.06 °C). This temperature time series in turn tracks the general trend of glacial runoff from four West Greenland glaciers discharging freshwater into the fjord (all p < 0.001). The algal time series further exhibits significant correlations to Irminger Sea temperature patterns, which are transmitted to western Greenland fjords via the West Greenland Current. The 42-year long record demonstrates the potential of annual increment forming coralline algae, which are known to live up to 650 years and which are abundant along the Greenland coastline, for reconstructing time series of sea surface temperature. Article in Journal/Newspaper Greenland Ice Sheet Utrecht University Repository Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
coralline algae glacial runoff sea surface temperature Taverne Geophysics Forestry Oceanography Aquatic Science Ecology Water Science and Technology Soil Science Geochemistry and Petrology Earth-Surface Processes Atmospheric Science Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Palaeontology |
spellingShingle |
coralline algae glacial runoff sea surface temperature Taverne Geophysics Forestry Oceanography Aquatic Science Ecology Water Science and Technology Soil Science Geochemistry and Petrology Earth-Surface Processes Atmospheric Science Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Palaeontology Williams, Siobhan Halfar, Jochen Zack, Thomas Hetzinger, Steffen Blicher, Martin Juul-Pedersen, Thomas Kronz, Andreas Noël, Brice van den Broeke, Michiel van de Berg, Willem Jan Coralline Algae Archive Fjord Surface Water Temperatures in Southwest Greenland |
topic_facet |
coralline algae glacial runoff sea surface temperature Taverne Geophysics Forestry Oceanography Aquatic Science Ecology Water Science and Technology Soil Science Geochemistry and Petrology Earth-Surface Processes Atmospheric Science Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Palaeontology |
description |
One of the most dramatic signs of ongoing global change is the mass loss of the Greenland Ice Sheet and the resulting rise in sea level, whereby most of the recent ice sheet mass loss can be attributed to an increase in meltwater runoff. The retreat and thinning of Greenland glaciers has been caused by rising air and ocean temperatures over the past decades. Despite the global scale impact of the changing ice sheet balance, estimates of glacial runoff in Greenland rarely extend past several decades, thus limiting our understanding of long-term glacial response to temperature. Here we present a 42-year long annually resolved red coralline algal Mg/Ca proxy temperature record from a southwestern Greenland fjord, with temperature ranging from 1.5 to 4 °C (standard error = 1.06 °C). This temperature time series in turn tracks the general trend of glacial runoff from four West Greenland glaciers discharging freshwater into the fjord (all p < 0.001). The algal time series further exhibits significant correlations to Irminger Sea temperature patterns, which are transmitted to western Greenland fjords via the West Greenland Current. The 42-year long record demonstrates the potential of annual increment forming coralline algae, which are known to live up to 650 years and which are abundant along the Greenland coastline, for reconstructing time series of sea surface temperature. |
author2 |
Sub Dynamics Meteorology Marine and Atmospheric Research |
format |
Article in Journal/Newspaper |
author |
Williams, Siobhan Halfar, Jochen Zack, Thomas Hetzinger, Steffen Blicher, Martin Juul-Pedersen, Thomas Kronz, Andreas Noël, Brice van den Broeke, Michiel van de Berg, Willem Jan |
author_facet |
Williams, Siobhan Halfar, Jochen Zack, Thomas Hetzinger, Steffen Blicher, Martin Juul-Pedersen, Thomas Kronz, Andreas Noël, Brice van den Broeke, Michiel van de Berg, Willem Jan |
author_sort |
Williams, Siobhan |
title |
Coralline Algae Archive Fjord Surface Water Temperatures in Southwest Greenland |
title_short |
Coralline Algae Archive Fjord Surface Water Temperatures in Southwest Greenland |
title_full |
Coralline Algae Archive Fjord Surface Water Temperatures in Southwest Greenland |
title_fullStr |
Coralline Algae Archive Fjord Surface Water Temperatures in Southwest Greenland |
title_full_unstemmed |
Coralline Algae Archive Fjord Surface Water Temperatures in Southwest Greenland |
title_sort |
coralline algae archive fjord surface water temperatures in southwest greenland |
publishDate |
2018 |
url |
https://dspace.library.uu.nl/handle/1874/377534 |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Greenland Irminger Sea |
geographic_facet |
Greenland Irminger Sea |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_relation |
2169-8953 https://dspace.library.uu.nl/handle/1874/377534 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782334432538001408 |