Table_1_Reconstructing Holocene Glacier and Climate Fluctuations From Lake Sediments in Vårfluesjøen, Northern Spitsbergen.DOCX
A process-based understanding of lacustrine deposited sediments in Arctic lakes is essential to set the present warming and hydroclimatic shift into perspective. From such a perspective, we can enhance our understanding of the natural climate variability in the Arctic. Here, we present work from the...
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ftfrontimediafig:oai:figshare.com:article/6819029 2023-05-15T14:59:07+02:00 Table_1_Reconstructing Holocene Glacier and Climate Fluctuations From Lake Sediments in Vårfluesjøen, Northern Spitsbergen.DOCX Torgeir O. Røthe Jostein Bakke Eivind W. N. Støren Raymond S. Bradley 2018-07-16T04:05:17Z https://doi.org/10.3389/feart.2018.00091.s002 https://figshare.com/articles/Table_1_Reconstructing_Holocene_Glacier_and_Climate_Fluctuations_From_Lake_Sediments_in_V_rfluesj_en_Northern_Spitsbergen_DOCX/6819029 unknown doi:10.3389/feart.2018.00091.s002 https://figshare.com/articles/Table_1_Reconstructing_Holocene_Glacier_and_Climate_Fluctuations_From_Lake_Sediments_in_V_rfluesj_en_Northern_Spitsbergen_DOCX/6819029 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Svalbard Arctic climate aeolian activity Neoglacial distal glacier-fed lake X-ray CT Dataset 2018 ftfrontimediafig https://doi.org/10.3389/feart.2018.00091.s002 2018-07-18T22:57:47Z A process-based understanding of lacustrine deposited sediments in Arctic lakes is essential to set the present warming and hydroclimatic shift into perspective. From such a perspective, we can enhance our understanding of the natural climate variability in the Arctic. Here, we present work from the northern coast of Spitsbergen in which we unravel the sediment sequence from a distal glacier-fed lake, Vårfluesjøen. Utilizing recent methodological and technological developments, we base our interpretation on new tools that better visualize and characterize the sediments cores. High-resolution X-ray Computed Tomography (X-ray CT) is used to visualize the lake sediments and quantify the sand-sized particles found in the 210 Pb- and radiocarbon-dated sediments, together with a multi-proxy approach including measurement of their physical, geochemical, and magnetic properties. Our findings suggest that Vårfluesjøen (6 m a.s.l.) was isolated from Woodfjorden at c. 10200 ± 260 cal. yr. BP. During the early Holocene, the glaciers in the Vårfluesjøen catchment were considerably smaller than today or had even melted completely. At the start of the Neoglacial period (c. 3500 cal. yr. BP), we find increased glacier activity in the catchment of the lake. X-ray CT reveals an increased frequency of sand-sized particles from 3500 to 1750 cal. yr. BP, suggesting greater wintertime aeolian activity. Starting c. 2250 years ago, we find a progressive increase in snowmelt runoff in the Vårfluesjøen catchment, with peak runoff from 1000 to 750 cal. yr. BP. This coincides with a drop in sand-sized particles, hence less favorable environment for aeolian activity, and implying wetter conditions. During the last 2000 years, there is evidence for high glacier activity between c. 2000 to 900 and 750–350 cal. yr. BP. In between these time spans, less activity is recorded in the periods 1900–1800, 1000–800, and 350–150 cal. yr. BP. Dataset Arctic Climate change glacier Svalbard Woodfjord* Woodfjorden Spitsbergen Frontiers: Figshare Arctic Svalbard Vårfluesjøen ENVELOPE(14.500,14.500,79.667,79.667) Woodfjorden ENVELOPE(14.000,14.000,79.833,79.833) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Svalbard Arctic climate aeolian activity Neoglacial distal glacier-fed lake X-ray CT |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Svalbard Arctic climate aeolian activity Neoglacial distal glacier-fed lake X-ray CT Torgeir O. Røthe Jostein Bakke Eivind W. N. Støren Raymond S. Bradley Table_1_Reconstructing Holocene Glacier and Climate Fluctuations From Lake Sediments in Vårfluesjøen, Northern Spitsbergen.DOCX |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Svalbard Arctic climate aeolian activity Neoglacial distal glacier-fed lake X-ray CT |
description |
A process-based understanding of lacustrine deposited sediments in Arctic lakes is essential to set the present warming and hydroclimatic shift into perspective. From such a perspective, we can enhance our understanding of the natural climate variability in the Arctic. Here, we present work from the northern coast of Spitsbergen in which we unravel the sediment sequence from a distal glacier-fed lake, Vårfluesjøen. Utilizing recent methodological and technological developments, we base our interpretation on new tools that better visualize and characterize the sediments cores. High-resolution X-ray Computed Tomography (X-ray CT) is used to visualize the lake sediments and quantify the sand-sized particles found in the 210 Pb- and radiocarbon-dated sediments, together with a multi-proxy approach including measurement of their physical, geochemical, and magnetic properties. Our findings suggest that Vårfluesjøen (6 m a.s.l.) was isolated from Woodfjorden at c. 10200 ± 260 cal. yr. BP. During the early Holocene, the glaciers in the Vårfluesjøen catchment were considerably smaller than today or had even melted completely. At the start of the Neoglacial period (c. 3500 cal. yr. BP), we find increased glacier activity in the catchment of the lake. X-ray CT reveals an increased frequency of sand-sized particles from 3500 to 1750 cal. yr. BP, suggesting greater wintertime aeolian activity. Starting c. 2250 years ago, we find a progressive increase in snowmelt runoff in the Vårfluesjøen catchment, with peak runoff from 1000 to 750 cal. yr. BP. This coincides with a drop in sand-sized particles, hence less favorable environment for aeolian activity, and implying wetter conditions. During the last 2000 years, there is evidence for high glacier activity between c. 2000 to 900 and 750–350 cal. yr. BP. In between these time spans, less activity is recorded in the periods 1900–1800, 1000–800, and 350–150 cal. yr. BP. |
format |
Dataset |
author |
Torgeir O. Røthe Jostein Bakke Eivind W. N. Støren Raymond S. Bradley |
author_facet |
Torgeir O. Røthe Jostein Bakke Eivind W. N. Støren Raymond S. Bradley |
author_sort |
Torgeir O. Røthe |
title |
Table_1_Reconstructing Holocene Glacier and Climate Fluctuations From Lake Sediments in Vårfluesjøen, Northern Spitsbergen.DOCX |
title_short |
Table_1_Reconstructing Holocene Glacier and Climate Fluctuations From Lake Sediments in Vårfluesjøen, Northern Spitsbergen.DOCX |
title_full |
Table_1_Reconstructing Holocene Glacier and Climate Fluctuations From Lake Sediments in Vårfluesjøen, Northern Spitsbergen.DOCX |
title_fullStr |
Table_1_Reconstructing Holocene Glacier and Climate Fluctuations From Lake Sediments in Vårfluesjøen, Northern Spitsbergen.DOCX |
title_full_unstemmed |
Table_1_Reconstructing Holocene Glacier and Climate Fluctuations From Lake Sediments in Vårfluesjøen, Northern Spitsbergen.DOCX |
title_sort |
table_1_reconstructing holocene glacier and climate fluctuations from lake sediments in vårfluesjøen, northern spitsbergen.docx |
publishDate |
2018 |
url |
https://doi.org/10.3389/feart.2018.00091.s002 https://figshare.com/articles/Table_1_Reconstructing_Holocene_Glacier_and_Climate_Fluctuations_From_Lake_Sediments_in_V_rfluesj_en_Northern_Spitsbergen_DOCX/6819029 |
long_lat |
ENVELOPE(14.500,14.500,79.667,79.667) ENVELOPE(14.000,14.000,79.833,79.833) |
geographic |
Arctic Svalbard Vårfluesjøen Woodfjorden |
geographic_facet |
Arctic Svalbard Vårfluesjøen Woodfjorden |
genre |
Arctic Climate change glacier Svalbard Woodfjord* Woodfjorden Spitsbergen |
genre_facet |
Arctic Climate change glacier Svalbard Woodfjord* Woodfjorden Spitsbergen |
op_relation |
doi:10.3389/feart.2018.00091.s002 https://figshare.com/articles/Table_1_Reconstructing_Holocene_Glacier_and_Climate_Fluctuations_From_Lake_Sediments_in_V_rfluesj_en_Northern_Spitsbergen_DOCX/6819029 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2018.00091.s002 |
_version_ |
1766331262840078336 |