Timberline tree-ring statistics examined through chronology stripping
Abstract Tree-ring data is commonly used in forest science and dendrochronology. As the collected datasets represent restricted populations of theoretical infinite sample size, an interesting question deals with the sample selection that is carried out during the fieldwork and through the data analy...
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crdegruyter:10.2478/v10132-012-0001-9 2023-05-15T17:42:36+02:00 Timberline tree-ring statistics examined through chronology stripping Timonen, Mauri Mielikäinen, Kari Helama, Samuli 2012 http://dx.doi.org/10.2478/v10132-012-0001-9 http://content.sciendo.com/view/journals/fsmu/56/1/article-p5.xml https://www.sciendo.com/pdf/10.2478/v10132-012-0001-9 en eng Walter de Gruyter GmbH http://creativecommons.org/licenses/by-nc-nd/3.0/ CC-BY-NC-ND Forestry Studies volume 56, issue 1, page 5-15 ISSN 1736-8723 Forestry journal-article 2012 crdegruyter https://doi.org/10.2478/v10132-012-0001-9 2022-06-16T13:41:10Z Abstract Tree-ring data is commonly used in forest science and dendrochronology. As the collected datasets represent restricted populations of theoretical infinite sample size, an interesting question deals with the sample selection that is carried out during the fieldwork and through the data analyses. This paper considers the latter issue, by statistically examining a recently completed Scots pine dataset of timberline tree-rings from Lapland (northern Finland). Following the detrending of individual ring-width series, the composition of the data was restricted using a pre-determined criteria of linear correlativity between the individual sample series and the master chronology (R master ). This procedure reduced both the number of sites and the sample size (i.e. the number of individual tree-ring series) and altered the tree-ring statistics of the remaining subset of the data in a systematic fashion. It was seen that the first-order autocorrelation, mean sensitivity and standard deviation all ascended with the uplifted R master criterion. Conspicuously, such filtering also reduced the correlation between the resulting tree-ring chronology and climate parameter. The results indicated that the screening of the data will alter the chronology statistics in a way that may be artificially generated, irrelative to the predetermined sample selection criteria. We remain to assume that the most fundamental selection of data is attained through the cross-dating process. Article in Journal/Newspaper Northern Finland Lapland De Gruyter (via Crossref) Forestry Studies 56 1 5 15 |
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Open Polar |
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De Gruyter (via Crossref) |
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language |
English |
topic |
Forestry |
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Forestry Timonen, Mauri Mielikäinen, Kari Helama, Samuli Timberline tree-ring statistics examined through chronology stripping |
topic_facet |
Forestry |
description |
Abstract Tree-ring data is commonly used in forest science and dendrochronology. As the collected datasets represent restricted populations of theoretical infinite sample size, an interesting question deals with the sample selection that is carried out during the fieldwork and through the data analyses. This paper considers the latter issue, by statistically examining a recently completed Scots pine dataset of timberline tree-rings from Lapland (northern Finland). Following the detrending of individual ring-width series, the composition of the data was restricted using a pre-determined criteria of linear correlativity between the individual sample series and the master chronology (R master ). This procedure reduced both the number of sites and the sample size (i.e. the number of individual tree-ring series) and altered the tree-ring statistics of the remaining subset of the data in a systematic fashion. It was seen that the first-order autocorrelation, mean sensitivity and standard deviation all ascended with the uplifted R master criterion. Conspicuously, such filtering also reduced the correlation between the resulting tree-ring chronology and climate parameter. The results indicated that the screening of the data will alter the chronology statistics in a way that may be artificially generated, irrelative to the predetermined sample selection criteria. We remain to assume that the most fundamental selection of data is attained through the cross-dating process. |
format |
Article in Journal/Newspaper |
author |
Timonen, Mauri Mielikäinen, Kari Helama, Samuli |
author_facet |
Timonen, Mauri Mielikäinen, Kari Helama, Samuli |
author_sort |
Timonen, Mauri |
title |
Timberline tree-ring statistics examined through chronology stripping |
title_short |
Timberline tree-ring statistics examined through chronology stripping |
title_full |
Timberline tree-ring statistics examined through chronology stripping |
title_fullStr |
Timberline tree-ring statistics examined through chronology stripping |
title_full_unstemmed |
Timberline tree-ring statistics examined through chronology stripping |
title_sort |
timberline tree-ring statistics examined through chronology stripping |
publisher |
Walter de Gruyter GmbH |
publishDate |
2012 |
url |
http://dx.doi.org/10.2478/v10132-012-0001-9 http://content.sciendo.com/view/journals/fsmu/56/1/article-p5.xml https://www.sciendo.com/pdf/10.2478/v10132-012-0001-9 |
genre |
Northern Finland Lapland |
genre_facet |
Northern Finland Lapland |
op_source |
Forestry Studies volume 56, issue 1, page 5-15 ISSN 1736-8723 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/3.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.2478/v10132-012-0001-9 |
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Forestry Studies |
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56 |
container_issue |
1 |
container_start_page |
5 |
op_container_end_page |
15 |
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1766144479084937216 |