Reconstructing Late Holocene North Atlantic atmospheric circulation changes using functional paleoclimate networks, supplementary material
Obtaining reliable reconstructions of long-term atmospheric circulation changes in the North Atlantic region presents a persistent challenge to contemporary paleoclimate research, which has been addressed by a multitude of recent studies. In order to contribute a novel methodological aspect to this...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.875881 2023-05-15T16:11:42+02:00 Reconstructing Late Holocene North Atlantic atmospheric circulation changes using functional paleoclimate networks, supplementary material Franke, Jasper G Werner, Johannes P Donner, Reik V 2017-06-02 application/zip, 20.4 kBytes https://doi.pangaea.de/10.1594/PANGAEA.875881 https://doi.org/10.1594/PANGAEA.875881 en eng PANGAEA Original version of Franke et al. data from 2017 (URI: https://store.pangaea.de/Publications/Franke-etal_2017/cp-2017-41-supplement.zip) https://doi.pangaea.de/10.1594/PANGAEA.875881 https://doi.org/10.1594/PANGAEA.875881 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Franke, Jasper G; Werner, Johannes P; Donner, Reik V (2017): Reconstructing Late Holocene North Atlantic atmospheric circulation changes using functional paleoclimate networks. Climate of the Past, 13(11), 1593-1608, https://doi.org/10.5194/cp-13-1593-2017 Dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.875881 https://doi.org/10.5194/cp-13-1593-2017 2023-01-20T09:09:08Z Obtaining reliable reconstructions of long-term atmospheric circulation changes in the North Atlantic region presents a persistent challenge to contemporary paleoclimate research, which has been addressed by a multitude of recent studies. In order to contribute a novel methodological aspect to this active field, we apply here evolving functional network analysis, a recently developed tool for studying temporal changes of the spatial co-variability structure of the Earth's climate system, to a set of Late Holocene paleoclimate proxy records covering the last two millenia. The emerging patterns obtained by our analysis are intimately related to long-term changes in the dominant mode of atmospheric circulation in the region, the North Atlantic Oscillation (NAO). By comparing the time-dependent inter-regional linkage structures of the obtained functional paleoclimate network representations to a recent multi-centennial NAO reconstruction, we identify strong co-variability between Southern Greenland, Svalbard and Fennoscandia as being indicative of a positive NAO phase, while connections from Greenland and Fennoscandia to Central Europe are more pronounced during negative NAO phases. By drawing upon this correspondence, we use some key parameters of the evolving network structure to obtain a qualitative reconstruction of the NAO long-term variability over the entire Common Era (last 2000 years) using a linear regression model trained upon the existing shorter reconstruction. Dataset Fennoscandia Greenland North Atlantic North Atlantic oscillation Svalbard PANGAEA - Data Publisher for Earth & Environmental Science Svalbard Greenland |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
Obtaining reliable reconstructions of long-term atmospheric circulation changes in the North Atlantic region presents a persistent challenge to contemporary paleoclimate research, which has been addressed by a multitude of recent studies. In order to contribute a novel methodological aspect to this active field, we apply here evolving functional network analysis, a recently developed tool for studying temporal changes of the spatial co-variability structure of the Earth's climate system, to a set of Late Holocene paleoclimate proxy records covering the last two millenia. The emerging patterns obtained by our analysis are intimately related to long-term changes in the dominant mode of atmospheric circulation in the region, the North Atlantic Oscillation (NAO). By comparing the time-dependent inter-regional linkage structures of the obtained functional paleoclimate network representations to a recent multi-centennial NAO reconstruction, we identify strong co-variability between Southern Greenland, Svalbard and Fennoscandia as being indicative of a positive NAO phase, while connections from Greenland and Fennoscandia to Central Europe are more pronounced during negative NAO phases. By drawing upon this correspondence, we use some key parameters of the evolving network structure to obtain a qualitative reconstruction of the NAO long-term variability over the entire Common Era (last 2000 years) using a linear regression model trained upon the existing shorter reconstruction. |
format |
Dataset |
author |
Franke, Jasper G Werner, Johannes P Donner, Reik V |
spellingShingle |
Franke, Jasper G Werner, Johannes P Donner, Reik V Reconstructing Late Holocene North Atlantic atmospheric circulation changes using functional paleoclimate networks, supplementary material |
author_facet |
Franke, Jasper G Werner, Johannes P Donner, Reik V |
author_sort |
Franke, Jasper G |
title |
Reconstructing Late Holocene North Atlantic atmospheric circulation changes using functional paleoclimate networks, supplementary material |
title_short |
Reconstructing Late Holocene North Atlantic atmospheric circulation changes using functional paleoclimate networks, supplementary material |
title_full |
Reconstructing Late Holocene North Atlantic atmospheric circulation changes using functional paleoclimate networks, supplementary material |
title_fullStr |
Reconstructing Late Holocene North Atlantic atmospheric circulation changes using functional paleoclimate networks, supplementary material |
title_full_unstemmed |
Reconstructing Late Holocene North Atlantic atmospheric circulation changes using functional paleoclimate networks, supplementary material |
title_sort |
reconstructing late holocene north atlantic atmospheric circulation changes using functional paleoclimate networks, supplementary material |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.875881 https://doi.org/10.1594/PANGAEA.875881 |
geographic |
Svalbard Greenland |
geographic_facet |
Svalbard Greenland |
genre |
Fennoscandia Greenland North Atlantic North Atlantic oscillation Svalbard |
genre_facet |
Fennoscandia Greenland North Atlantic North Atlantic oscillation Svalbard |
op_source |
Supplement to: Franke, Jasper G; Werner, Johannes P; Donner, Reik V (2017): Reconstructing Late Holocene North Atlantic atmospheric circulation changes using functional paleoclimate networks. Climate of the Past, 13(11), 1593-1608, https://doi.org/10.5194/cp-13-1593-2017 |
op_relation |
Original version of Franke et al. data from 2017 (URI: https://store.pangaea.de/Publications/Franke-etal_2017/cp-2017-41-supplement.zip) https://doi.pangaea.de/10.1594/PANGAEA.875881 https://doi.org/10.1594/PANGAEA.875881 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.875881 https://doi.org/10.5194/cp-13-1593-2017 |
_version_ |
1765996875286052864 |