A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada

Abstract Reconstructions of past environmental changes are critical for understanding the natural variability of Earth's climate system and for providing a context for present and future global change. Radiocarbon-dated lake sediments from Lake CF3, northeastern Baffin Island, Arctic Canada, ar...

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Published in:Quaternary Research
Main Authors: Briner, Jason P., Michelutti, Neal, Francis, Donna R., Miller, Gifford H., Axford, Yarrow, Wooller, Matthew J., Wolfe, Alexander P.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 2006
Subjects:
Online Access:http://dx.doi.org/10.1016/j.yqres.2005.10.005
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spelling crcambridgeupr:10.1016/j.yqres.2005.10.005 2024-06-09T07:43:50+00:00 A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada Briner, Jason P. Michelutti, Neal Francis, Donna R. Miller, Gifford H. Axford, Yarrow Wooller, Matthew J. Wolfe, Alexander P. 2006 http://dx.doi.org/10.1016/j.yqres.2005.10.005 http://api.elsevier.com/content/article/PII:S0033589405001766?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589405001766?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400027599 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 65, issue 3, page 431-442 ISSN 0033-5894 1096-0287 journal-article 2006 crcambridgeupr https://doi.org/10.1016/j.yqres.2005.10.005 2024-05-15T13:04:50Z Abstract Reconstructions of past environmental changes are critical for understanding the natural variability of Earth's climate system and for providing a context for present and future global change. Radiocarbon-dated lake sediments from Lake CF3, northeastern Baffin Island, Arctic Canada, are used to reconstruct past environmental conditions over the last 11,200 years. Numerous proxies, including chironomid-inferred July air temperatures, diatom-inferred lakewater pH, and sediment organic matter, reveal a pronounced Holocene thermal maximum as much as 5°C warmer than historic summer temperatures from ∼10,000 to 8500 cal yr B.P. Following rapid cooling ∼8500 cal yr B.P., Lake CF3 proxies indicate cooling through the late Holocene. At many sites in northeastern Canada, the Holocene thermal maximum occurred later than at Lake CF3; this late onset of Holocene warmth is generally attributed to the impacts of the decaying Laurentide Ice Sheet on early Holocene temperatures in northeastern Canada. However, the lacustrine proxies in Lake CF3 apparently responded to insolation-driven warmth, despite the proximity of Lake CF3 to the Laurentide Ice Sheet and its meltwater. The magnitude and timing of the Holocene thermal maximum at Lake CF3 indicate that temperatures and environmental conditions at this site are highly sensitive to changes in radiative forcing. Article in Journal/Newspaper Arctic Baffin Island Baffin Climate change Ice Sheet Cambridge University Press Arctic Baffin Island Canada Quaternary Research 65 3 431 442
institution Open Polar
collection Cambridge University Press
op_collection_id crcambridgeupr
language English
description Abstract Reconstructions of past environmental changes are critical for understanding the natural variability of Earth's climate system and for providing a context for present and future global change. Radiocarbon-dated lake sediments from Lake CF3, northeastern Baffin Island, Arctic Canada, are used to reconstruct past environmental conditions over the last 11,200 years. Numerous proxies, including chironomid-inferred July air temperatures, diatom-inferred lakewater pH, and sediment organic matter, reveal a pronounced Holocene thermal maximum as much as 5°C warmer than historic summer temperatures from ∼10,000 to 8500 cal yr B.P. Following rapid cooling ∼8500 cal yr B.P., Lake CF3 proxies indicate cooling through the late Holocene. At many sites in northeastern Canada, the Holocene thermal maximum occurred later than at Lake CF3; this late onset of Holocene warmth is generally attributed to the impacts of the decaying Laurentide Ice Sheet on early Holocene temperatures in northeastern Canada. However, the lacustrine proxies in Lake CF3 apparently responded to insolation-driven warmth, despite the proximity of Lake CF3 to the Laurentide Ice Sheet and its meltwater. The magnitude and timing of the Holocene thermal maximum at Lake CF3 indicate that temperatures and environmental conditions at this site are highly sensitive to changes in radiative forcing.
format Article in Journal/Newspaper
author Briner, Jason P.
Michelutti, Neal
Francis, Donna R.
Miller, Gifford H.
Axford, Yarrow
Wooller, Matthew J.
Wolfe, Alexander P.
spellingShingle Briner, Jason P.
Michelutti, Neal
Francis, Donna R.
Miller, Gifford H.
Axford, Yarrow
Wooller, Matthew J.
Wolfe, Alexander P.
A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada
author_facet Briner, Jason P.
Michelutti, Neal
Francis, Donna R.
Miller, Gifford H.
Axford, Yarrow
Wooller, Matthew J.
Wolfe, Alexander P.
author_sort Briner, Jason P.
title A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada
title_short A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada
title_full A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada
title_fullStr A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada
title_full_unstemmed A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada
title_sort multi-proxy lacustrine record of holocene climate change on northeastern baffin island, arctic canada
publisher Cambridge University Press (CUP)
publishDate 2006
url http://dx.doi.org/10.1016/j.yqres.2005.10.005
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https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400027599
geographic Arctic
Baffin Island
Canada
geographic_facet Arctic
Baffin Island
Canada
genre Arctic
Baffin Island
Baffin
Climate change
Ice Sheet
genre_facet Arctic
Baffin Island
Baffin
Climate change
Ice Sheet
op_source Quaternary Research
volume 65, issue 3, page 431-442
ISSN 0033-5894 1096-0287
op_rights https://www.cambridge.org/core/terms
op_doi https://doi.org/10.1016/j.yqres.2005.10.005
container_title Quaternary Research
container_volume 65
container_issue 3
container_start_page 431
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