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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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 |
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Cambridge University Press |
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crcambridgeupr |
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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 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 |
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 |
op_container_end_page |
442 |
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1801372682943463424 |