Arctic Hydrological Regime Shift in a Warming Climate, Svalbard 78°02′42″N 13°48′36″E / 78.045°N 13.810°E, Lake Linnevatnet, covering the last ~2000 years (collected 2019-2023)
In this study, we delve into a newly constructed composite sedimentary sequence obtained from Linnévatnet in western Spitsbergen, covering approximately the last ~2,000 years. Micro-X-ray fluorescence (μ-XRF) results show that calcium constitutes the major component of sediment deposited in the delt...
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2023
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dataone:doi:10.18739/A2QR4NS2X 2024-06-03T18:46:42+00:00 Arctic Hydrological Regime Shift in a Warming Climate, Svalbard 78°02′42″N 13°48′36″E / 78.045°N 13.810°E, Lake Linnevatnet, covering the last ~2000 years (collected 2019-2023) François Lapointe Raymond Bradley Michael Retelle Western Spitsbergen, Svalbard, Lake Linnevatnet, Mooring C ENVELOPE(13.52,14.104,78.081,77.943) BEGINDATE: 2019-11-01T00:00:00Z ENDDATE: 2023-07-11T00:00:00Z 2023-01-01T00:00:00Z https://doi.org/10.18739/A2QR4NS2X unknown Arctic Data Center Linnévatnet, Linnébreen, LOI, grain-size, Calcium, Carbonates, temperature, precipitation, global warming Dataset 2023 dataone:urn:node:ARCTIC https://doi.org/10.18739/A2QR4NS2X 2024-06-03T18:20:08Z In this study, we delve into a newly constructed composite sedimentary sequence obtained from Linnévatnet in western Spitsbergen, covering approximately the last ~2,000 years. Micro-X-ray fluorescence (μ-XRF) results show that calcium constitutes the major component of sediment deposited in the delta-proximal basin, where the sedimentary record was obtained. Percentage of organic material, as determined through loss-on-ignition measurements, exhibits an inverse relationship with calcium and magnetic susceptibility. This implies that the sediment input at the core site is mainly influenced by the alternation of calcium sourced from the carbonates on the eastern valley slopes and coal-bearing sandstone from Linnéelva, which originates from the central valley's main river inflow. Linnéelva primarily receives its water from the snow and glacier meltwaters of Linnébreen, a small valley glacier situated 7 kilometers south of Linnévatnet. Since Linnébreen is underlain by coal-bearing sandstone, the organic content in Linnévatnet's lake sediments can serve as an indicator of glacier activity. We discovered that parameters with annual resolutions, such as calcium and grain size, exhibit strong correlations with temperature estimates derived from nearby Lomonosovfonna's δ18O (the ratio of stable isotopes oxygen-18 and oxygen-16) ice record, as well as broader reconstructions of Northern Hemisphere winter temperatures. Notably, the coarsest grain size, the highest calcium values, and the lowest organic content were observed in recent years, indicating that the influence of glaciers on the sediment input to Linnévatnet is currently at its lowest point in the context of the past millennia. Article: https://doi.org/10.1080/15230430.2023.2223403 Dataset Arctic glacier Global warming Magnetic susceptibility Svalbard Spitsbergen Arctic Data Center (via DataONE) Arctic Svalbard Linnévatnet ENVELOPE(13.824,13.824,78.042,78.042) Linnébreen ENVELOPE(13.933,13.933,77.967,77.967) Linnéelva ENVELOPE(13.751,13.751,78.077,78.077) ENVELOPE(13.52,14.104,78.081,77.943) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
Linnévatnet, Linnébreen, LOI, grain-size, Calcium, Carbonates, temperature, precipitation, global warming |
spellingShingle |
Linnévatnet, Linnébreen, LOI, grain-size, Calcium, Carbonates, temperature, precipitation, global warming François Lapointe Raymond Bradley Michael Retelle Arctic Hydrological Regime Shift in a Warming Climate, Svalbard 78°02′42″N 13°48′36″E / 78.045°N 13.810°E, Lake Linnevatnet, covering the last ~2000 years (collected 2019-2023) |
topic_facet |
Linnévatnet, Linnébreen, LOI, grain-size, Calcium, Carbonates, temperature, precipitation, global warming |
description |
In this study, we delve into a newly constructed composite sedimentary sequence obtained from Linnévatnet in western Spitsbergen, covering approximately the last ~2,000 years. Micro-X-ray fluorescence (μ-XRF) results show that calcium constitutes the major component of sediment deposited in the delta-proximal basin, where the sedimentary record was obtained. Percentage of organic material, as determined through loss-on-ignition measurements, exhibits an inverse relationship with calcium and magnetic susceptibility. This implies that the sediment input at the core site is mainly influenced by the alternation of calcium sourced from the carbonates on the eastern valley slopes and coal-bearing sandstone from Linnéelva, which originates from the central valley's main river inflow. Linnéelva primarily receives its water from the snow and glacier meltwaters of Linnébreen, a small valley glacier situated 7 kilometers south of Linnévatnet. Since Linnébreen is underlain by coal-bearing sandstone, the organic content in Linnévatnet's lake sediments can serve as an indicator of glacier activity. We discovered that parameters with annual resolutions, such as calcium and grain size, exhibit strong correlations with temperature estimates derived from nearby Lomonosovfonna's δ18O (the ratio of stable isotopes oxygen-18 and oxygen-16) ice record, as well as broader reconstructions of Northern Hemisphere winter temperatures. Notably, the coarsest grain size, the highest calcium values, and the lowest organic content were observed in recent years, indicating that the influence of glaciers on the sediment input to Linnévatnet is currently at its lowest point in the context of the past millennia. Article: https://doi.org/10.1080/15230430.2023.2223403 |
format |
Dataset |
author |
François Lapointe Raymond Bradley Michael Retelle |
author_facet |
François Lapointe Raymond Bradley Michael Retelle |
author_sort |
François Lapointe |
title |
Arctic Hydrological Regime Shift in a Warming Climate, Svalbard 78°02′42″N 13°48′36″E / 78.045°N 13.810°E, Lake Linnevatnet, covering the last ~2000 years (collected 2019-2023) |
title_short |
Arctic Hydrological Regime Shift in a Warming Climate, Svalbard 78°02′42″N 13°48′36″E / 78.045°N 13.810°E, Lake Linnevatnet, covering the last ~2000 years (collected 2019-2023) |
title_full |
Arctic Hydrological Regime Shift in a Warming Climate, Svalbard 78°02′42″N 13°48′36″E / 78.045°N 13.810°E, Lake Linnevatnet, covering the last ~2000 years (collected 2019-2023) |
title_fullStr |
Arctic Hydrological Regime Shift in a Warming Climate, Svalbard 78°02′42″N 13°48′36″E / 78.045°N 13.810°E, Lake Linnevatnet, covering the last ~2000 years (collected 2019-2023) |
title_full_unstemmed |
Arctic Hydrological Regime Shift in a Warming Climate, Svalbard 78°02′42″N 13°48′36″E / 78.045°N 13.810°E, Lake Linnevatnet, covering the last ~2000 years (collected 2019-2023) |
title_sort |
arctic hydrological regime shift in a warming climate, svalbard 78°02′42″n 13°48′36″e / 78.045°n 13.810°e, lake linnevatnet, covering the last ~2000 years (collected 2019-2023) |
publisher |
Arctic Data Center |
publishDate |
2023 |
url |
https://doi.org/10.18739/A2QR4NS2X |
op_coverage |
Western Spitsbergen, Svalbard, Lake Linnevatnet, Mooring C ENVELOPE(13.52,14.104,78.081,77.943) BEGINDATE: 2019-11-01T00:00:00Z ENDDATE: 2023-07-11T00:00:00Z |
long_lat |
ENVELOPE(13.824,13.824,78.042,78.042) ENVELOPE(13.933,13.933,77.967,77.967) ENVELOPE(13.751,13.751,78.077,78.077) ENVELOPE(13.52,14.104,78.081,77.943) |
geographic |
Arctic Svalbard Linnévatnet Linnébreen Linnéelva |
geographic_facet |
Arctic Svalbard Linnévatnet Linnébreen Linnéelva |
genre |
Arctic glacier Global warming Magnetic susceptibility Svalbard Spitsbergen |
genre_facet |
Arctic glacier Global warming Magnetic susceptibility Svalbard Spitsbergen |
op_doi |
https://doi.org/10.18739/A2QR4NS2X |
_version_ |
1800869885886070784 |