The climatic significance of clastic varves in the Ångermanälven Estuary, northern Sweden, AD 1860 to 1950
Multiple regression analyses were applied to decipher the correlation between monthly discharge, precipitation and temperature records and annual varve-thickness data from river Ångermanälven north-central Sweden between 1860 and 1950. Over the whole 90-year period we found generally a strong correl...
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Online Access: | http://dx.doi.org/10.1191/095968398668399174 http://journals.sagepub.com/doi/pdf/10.1191/095968398668399174 |
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crsagepubl:10.1191/095968398668399174 2024-04-28T08:32:37+00:00 The climatic significance of clastic varves in the Ångermanälven Estuary, northern Sweden, AD 1860 to 1950 Wohlfarth, Barbara Holmquist, Björn Cato, Ingemar Linderson, Hans 1998 http://dx.doi.org/10.1191/095968398668399174 http://journals.sagepub.com/doi/pdf/10.1191/095968398668399174 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 8, issue 5, page 521-534 ISSN 0959-6836 1477-0911 Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change journal-article 1998 crsagepubl https://doi.org/10.1191/095968398668399174 2024-04-09T08:01:37Z Multiple regression analyses were applied to decipher the correlation between monthly discharge, precipitation and temperature records and annual varve-thickness data from river Ångermanälven north-central Sweden between 1860 and 1950. Over the whole 90-year period we found generally a strong correlation between spring/summer precipitation and annual varve thickness. However, there are clear indications that precipitation during the months of January and March–May was more important for the formation of varves in the early part of the twentieth century, while January, March, April and June seem to have been more significant during the later part of the nineteenth century. Monthly temperatures and annual varve thickness, on the other hand, did not show any significant correlations over the whole 90-year period, but, when split into 30-year periods, a dependence of varve thickness on October (1862–90) and March (1919–50) temperatures could be observed. Our results show that it is important to test each specific varve record against instrumental data sets before any conclusions can be drawn in terms of precipitation and/or temperature dependence. They also emphasize the necessity to correlate varve-thickness records against long instrumental series in order to detect any changing forcing mechanisms. Article in Journal/Newspaper Northern Sweden SAGE Publications The Holocene 8 5 521 534 |
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Open Polar |
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SAGE Publications |
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English |
topic |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
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Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change Wohlfarth, Barbara Holmquist, Björn Cato, Ingemar Linderson, Hans The climatic significance of clastic varves in the Ångermanälven Estuary, northern Sweden, AD 1860 to 1950 |
topic_facet |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
description |
Multiple regression analyses were applied to decipher the correlation between monthly discharge, precipitation and temperature records and annual varve-thickness data from river Ångermanälven north-central Sweden between 1860 and 1950. Over the whole 90-year period we found generally a strong correlation between spring/summer precipitation and annual varve thickness. However, there are clear indications that precipitation during the months of January and March–May was more important for the formation of varves in the early part of the twentieth century, while January, March, April and June seem to have been more significant during the later part of the nineteenth century. Monthly temperatures and annual varve thickness, on the other hand, did not show any significant correlations over the whole 90-year period, but, when split into 30-year periods, a dependence of varve thickness on October (1862–90) and March (1919–50) temperatures could be observed. Our results show that it is important to test each specific varve record against instrumental data sets before any conclusions can be drawn in terms of precipitation and/or temperature dependence. They also emphasize the necessity to correlate varve-thickness records against long instrumental series in order to detect any changing forcing mechanisms. |
format |
Article in Journal/Newspaper |
author |
Wohlfarth, Barbara Holmquist, Björn Cato, Ingemar Linderson, Hans |
author_facet |
Wohlfarth, Barbara Holmquist, Björn Cato, Ingemar Linderson, Hans |
author_sort |
Wohlfarth, Barbara |
title |
The climatic significance of clastic varves in the Ångermanälven Estuary, northern Sweden, AD 1860 to 1950 |
title_short |
The climatic significance of clastic varves in the Ångermanälven Estuary, northern Sweden, AD 1860 to 1950 |
title_full |
The climatic significance of clastic varves in the Ångermanälven Estuary, northern Sweden, AD 1860 to 1950 |
title_fullStr |
The climatic significance of clastic varves in the Ångermanälven Estuary, northern Sweden, AD 1860 to 1950 |
title_full_unstemmed |
The climatic significance of clastic varves in the Ångermanälven Estuary, northern Sweden, AD 1860 to 1950 |
title_sort |
climatic significance of clastic varves in the ångermanälven estuary, northern sweden, ad 1860 to 1950 |
publisher |
SAGE Publications |
publishDate |
1998 |
url |
http://dx.doi.org/10.1191/095968398668399174 http://journals.sagepub.com/doi/pdf/10.1191/095968398668399174 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
The Holocene volume 8, issue 5, page 521-534 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1191/095968398668399174 |
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The Holocene |
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8 |
container_issue |
5 |
container_start_page |
521 |
op_container_end_page |
534 |
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1797589739774148608 |