Reconstructing High Arctic growing season intensity from shoot length growth of a dwarf shrub
Annual shoot length of the circumarctic dwarf shrub Cassiope tetragona has proved to be a reliable proxy for past and ongoing climate change in the Arctic. This is based on its strong linear relationship with monthly climate parameters. Monthly means are, however, coarse units for prediction of grow...
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ftunivwagenin:oai:library.wur.nl:wurpubs/438783 2024-02-04T09:56:20+01:00 Reconstructing High Arctic growing season intensity from shoot length growth of a dwarf shrub Weijers, S. Wagner-Cremer, F. Sass, U.G.W. Broekman, R. Rozema, J. 2013 application/pdf https://research.wur.nl/en/publications/reconstructing-high-arctic-growing-season-intensity-from-shoot-le https://doi.org/10.1177/0959683612470178 en eng https://edepot.wur.nl/256383 https://research.wur.nl/en/publications/reconstructing-high-arctic-growing-season-intensity-from-shoot-le doi:10.1177/0959683612470178 info:eu-repo/semantics/restrictedAccess Wageningen University & Research The Holocene 23 (2013) 5 ISSN: 0959-6836 baffin-island cassiope-tetragona climate signals core delta-o-18 records ice variability retrospective analysis salix-arctica summer temperature surface air-temperature svalbard info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2013 ftunivwagenin https://doi.org/10.1177/0959683612470178 2024-01-10T23:20:38Z Annual shoot length of the circumarctic dwarf shrub Cassiope tetragona has proved to be a reliable proxy for past and ongoing climate change in the Arctic. This is based on its strong linear relationship with monthly climate parameters. Monthly means are, however, coarse units for prediction of growth in marginal regions with short growing seasons. An alternative to monthly averages are parameters that quantify the growing season length (GSL) and its intensity (growing degree-days; GDD5). GDD5 is defined as the cumulative daily mean temperature above 5°C. GSL is defined as the number of days on which the average temperature exceeds 5°C. The aims of this study were to test whether these parameters are a better predictor of growth than monthly means and to reconstruct past High Arctic growing season climate. Correlative analysis shows that GDD5 is a better predictor of annual shoot length growth than mean monthly temperatures and GSL, both at C. tetragona’s European northern and southern distribution limit, as well as at its assumed climatic optimum. Svalbard Airport GDD5 was reconstructed back to 1857. The reconstruction shares 61% of variance with the instrumental record. This opens the possibility to obtain an Arctic network of climate reconstructions with high temporal and spatial resolution through construction of C. tetragona shoot length chronologies. Article in Journal/Newspaper Arctic Arctic Baffin Island Baffin Cassiope tetragona Climate change Svalbard Wageningen UR (University & Research Centre): Digital Library Arctic Svalbard Baffin Island The Holocene 23 5 721 731 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
baffin-island cassiope-tetragona climate signals core delta-o-18 records ice variability retrospective analysis salix-arctica summer temperature surface air-temperature svalbard |
spellingShingle |
baffin-island cassiope-tetragona climate signals core delta-o-18 records ice variability retrospective analysis salix-arctica summer temperature surface air-temperature svalbard Weijers, S. Wagner-Cremer, F. Sass, U.G.W. Broekman, R. Rozema, J. Reconstructing High Arctic growing season intensity from shoot length growth of a dwarf shrub |
topic_facet |
baffin-island cassiope-tetragona climate signals core delta-o-18 records ice variability retrospective analysis salix-arctica summer temperature surface air-temperature svalbard |
description |
Annual shoot length of the circumarctic dwarf shrub Cassiope tetragona has proved to be a reliable proxy for past and ongoing climate change in the Arctic. This is based on its strong linear relationship with monthly climate parameters. Monthly means are, however, coarse units for prediction of growth in marginal regions with short growing seasons. An alternative to monthly averages are parameters that quantify the growing season length (GSL) and its intensity (growing degree-days; GDD5). GDD5 is defined as the cumulative daily mean temperature above 5°C. GSL is defined as the number of days on which the average temperature exceeds 5°C. The aims of this study were to test whether these parameters are a better predictor of growth than monthly means and to reconstruct past High Arctic growing season climate. Correlative analysis shows that GDD5 is a better predictor of annual shoot length growth than mean monthly temperatures and GSL, both at C. tetragona’s European northern and southern distribution limit, as well as at its assumed climatic optimum. Svalbard Airport GDD5 was reconstructed back to 1857. The reconstruction shares 61% of variance with the instrumental record. This opens the possibility to obtain an Arctic network of climate reconstructions with high temporal and spatial resolution through construction of C. tetragona shoot length chronologies. |
format |
Article in Journal/Newspaper |
author |
Weijers, S. Wagner-Cremer, F. Sass, U.G.W. Broekman, R. Rozema, J. |
author_facet |
Weijers, S. Wagner-Cremer, F. Sass, U.G.W. Broekman, R. Rozema, J. |
author_sort |
Weijers, S. |
title |
Reconstructing High Arctic growing season intensity from shoot length growth of a dwarf shrub |
title_short |
Reconstructing High Arctic growing season intensity from shoot length growth of a dwarf shrub |
title_full |
Reconstructing High Arctic growing season intensity from shoot length growth of a dwarf shrub |
title_fullStr |
Reconstructing High Arctic growing season intensity from shoot length growth of a dwarf shrub |
title_full_unstemmed |
Reconstructing High Arctic growing season intensity from shoot length growth of a dwarf shrub |
title_sort |
reconstructing high arctic growing season intensity from shoot length growth of a dwarf shrub |
publishDate |
2013 |
url |
https://research.wur.nl/en/publications/reconstructing-high-arctic-growing-season-intensity-from-shoot-le https://doi.org/10.1177/0959683612470178 |
geographic |
Arctic Svalbard Baffin Island |
geographic_facet |
Arctic Svalbard Baffin Island |
genre |
Arctic Arctic Baffin Island Baffin Cassiope tetragona Climate change Svalbard |
genre_facet |
Arctic Arctic Baffin Island Baffin Cassiope tetragona Climate change Svalbard |
op_source |
The Holocene 23 (2013) 5 ISSN: 0959-6836 |
op_relation |
https://edepot.wur.nl/256383 https://research.wur.nl/en/publications/reconstructing-high-arctic-growing-season-intensity-from-shoot-le doi:10.1177/0959683612470178 |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1177/0959683612470178 |
container_title |
The Holocene |
container_volume |
23 |
container_issue |
5 |
container_start_page |
721 |
op_container_end_page |
731 |
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1789960891987394560 |