Orbital forcing of tree-ring data
Solar insolation changes, resulting from long-term oscillations of orbital configurations1, are an important driver of Holocene climate2, 3. The forcing is substantial over the past 2,000 years, up to four times as large as the 1.6 W m−2 net anthropogenic forcing since 1750 (ref. 4), but the trend v...
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fthzgzmk:oai:publications.hereon.de:29920 2023-06-11T04:03:15+02:00 Orbital forcing of tree-ring data Esper, J. Frank, D.C. Timonen, M. Zorita, E. Wilson, R.J.S. Luterbacher, J. Holzkaemper, S. Fischer, N. Wagner, S. Nievergelt, D. Verstege, A. Buentgen, U. 2012 https://publications.hereon.de/id/29920 https://publications.hzg.de/id/29920 en eng Nature Publishing Group http://dx.doi.org/10.1038/nclimate1589 urn:issn:1758-678X https://publications.hereon.de/id/29920 https://publications.hzg.de/id/29920 info:eu-repo/semantics/closedAccess issn:1758-678X Esper, J.; Frank, D.C.; Timonen, M.; Zorita, E.; Wilson, R.J.S.; Luterbacher, J.; Holzkaemper, S.; Fischer, N.; Wagner, S.; Nievergelt, D.; Verstege, A.; Buentgen, U.: Orbital forcing of tree-ring data. In: Nature Climate Change. Vol. 2 (2012) 862 - 866. (DOI:10.1038/nclimate1589) info:eu-repo/classification/ddc/551 info:eu-repo/semantics/article Zeitschrift Artikel 2012 fthzgzmk https://doi.org/10.1038/nclimate1589 2023-05-28T23:23:29Z Solar insolation changes, resulting from long-term oscillations of orbital configurations1, are an important driver of Holocene climate2, 3. The forcing is substantial over the past 2,000 years, up to four times as large as the 1.6 W m−2 net anthropogenic forcing since 1750 (ref. 4), but the trend varies considerably over time, space and with season5. Using numerous high-latitude proxy records, slow orbital changes have recently been shown6 to gradually force boreal summer temperature cooling over the common era. Here, we present new evidence based on maximum latewood density data from northern Scandinavia, indicating that this cooling trend was stronger (−0.31 °C per 1,000 years, ±0.03 °C) than previously reported, and demonstrate that this signature is missing in published tree-ring proxy records. The long-term trend now revealed in maximum latewood density data is in line with coupled general circulation models7, 8 indicating albedo-driven feedback mechanisms and substantial summer cooling over the past two millennia in northern boreal and Arctic latitudes. These findings, together with the missing orbital signature in published dendrochronological records, suggest that large-scale near-surface air-temperature reconstructions9, 10, 11, 12, 13 relying on tree-ring data may underestimate pre-instrumental temperatures including warmth during Medieval and Roman times. Article in Journal/Newspaper albedo Arctic Hereon Publications (Helmholtz-Zentrum) Arctic Nature Climate Change 2 12 862 866 |
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Hereon Publications (Helmholtz-Zentrum) |
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English |
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info:eu-repo/classification/ddc/551 |
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info:eu-repo/classification/ddc/551 Esper, J. Frank, D.C. Timonen, M. Zorita, E. Wilson, R.J.S. Luterbacher, J. Holzkaemper, S. Fischer, N. Wagner, S. Nievergelt, D. Verstege, A. Buentgen, U. Orbital forcing of tree-ring data |
topic_facet |
info:eu-repo/classification/ddc/551 |
description |
Solar insolation changes, resulting from long-term oscillations of orbital configurations1, are an important driver of Holocene climate2, 3. The forcing is substantial over the past 2,000 years, up to four times as large as the 1.6 W m−2 net anthropogenic forcing since 1750 (ref. 4), but the trend varies considerably over time, space and with season5. Using numerous high-latitude proxy records, slow orbital changes have recently been shown6 to gradually force boreal summer temperature cooling over the common era. Here, we present new evidence based on maximum latewood density data from northern Scandinavia, indicating that this cooling trend was stronger (−0.31 °C per 1,000 years, ±0.03 °C) than previously reported, and demonstrate that this signature is missing in published tree-ring proxy records. The long-term trend now revealed in maximum latewood density data is in line with coupled general circulation models7, 8 indicating albedo-driven feedback mechanisms and substantial summer cooling over the past two millennia in northern boreal and Arctic latitudes. These findings, together with the missing orbital signature in published dendrochronological records, suggest that large-scale near-surface air-temperature reconstructions9, 10, 11, 12, 13 relying on tree-ring data may underestimate pre-instrumental temperatures including warmth during Medieval and Roman times. |
format |
Article in Journal/Newspaper |
author |
Esper, J. Frank, D.C. Timonen, M. Zorita, E. Wilson, R.J.S. Luterbacher, J. Holzkaemper, S. Fischer, N. Wagner, S. Nievergelt, D. Verstege, A. Buentgen, U. |
author_facet |
Esper, J. Frank, D.C. Timonen, M. Zorita, E. Wilson, R.J.S. Luterbacher, J. Holzkaemper, S. Fischer, N. Wagner, S. Nievergelt, D. Verstege, A. Buentgen, U. |
author_sort |
Esper, J. |
title |
Orbital forcing of tree-ring data |
title_short |
Orbital forcing of tree-ring data |
title_full |
Orbital forcing of tree-ring data |
title_fullStr |
Orbital forcing of tree-ring data |
title_full_unstemmed |
Orbital forcing of tree-ring data |
title_sort |
orbital forcing of tree-ring data |
publisher |
Nature Publishing Group |
publishDate |
2012 |
url |
https://publications.hereon.de/id/29920 https://publications.hzg.de/id/29920 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic |
genre_facet |
albedo Arctic |
op_source |
issn:1758-678X Esper, J.; Frank, D.C.; Timonen, M.; Zorita, E.; Wilson, R.J.S.; Luterbacher, J.; Holzkaemper, S.; Fischer, N.; Wagner, S.; Nievergelt, D.; Verstege, A.; Buentgen, U.: Orbital forcing of tree-ring data. In: Nature Climate Change. Vol. 2 (2012) 862 - 866. (DOI:10.1038/nclimate1589) |
op_relation |
http://dx.doi.org/10.1038/nclimate1589 urn:issn:1758-678X https://publications.hereon.de/id/29920 https://publications.hzg.de/id/29920 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1038/nclimate1589 |
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Nature Climate Change |
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2 |
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12 |
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