Are North Atlantic Multidecadal SST Anomalies Westward Propagating?
The westward propagation of sea surface temperature (SST) anomalies is one of the main characteristics of one of the theories of the Atlantic Multidecadal Oscillation. Here we use techniques from complex network modeling to investigate the existence of the westward propagation in the North Atlantic...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/307261 2023-07-23T04:20:29+02:00 Are North Atlantic Multidecadal SST Anomalies Westward Propagating? Feng, Qingyi Dijkstra, Hendrik Sub Physical Oceanography Marine and Atmospheric Research 2014-01-28 image/pdf https://dspace.library.uu.nl/handle/1874/307261 en eng 0094-8276 https://dspace.library.uu.nl/handle/1874/307261 info:eu-repo/semantics/OpenAccess Atlantic Multidecadal Oscillation climate networks mutual information Pearson correlation westward propagation conditional Hamming distance Letter 2014 ftunivutrecht 2023-07-02T01:12:32Z The westward propagation of sea surface temperature (SST) anomalies is one of the main characteristics of one of the theories of the Atlantic Multidecadal Oscillation. Here we use techniques from complex network modeling to investigate the existence of the westward propagation in the North Atlantic SST observations. We construct Climate Networks (CNs) by using a linear Pearson correlation measure (resulting in Pearson Correlation Climate Network (PCCNs)) and a (nonlinear) mutual information measure (resulting in Mutual Information Climate Network (MICNs)) of spatial correlations between SST variations. Analysis of the topological properties of both types of CNs shows that the MICNs are better in capturing the main features of propagating patterns from the noisy SST data than PCCNs and that westward propagation of multidecadal SST anomalies indeed seems to occur in the North Atlantic. Manuscript North Atlantic Utrecht University Repository |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
Atlantic Multidecadal Oscillation climate networks mutual information Pearson correlation westward propagation conditional Hamming distance |
spellingShingle |
Atlantic Multidecadal Oscillation climate networks mutual information Pearson correlation westward propagation conditional Hamming distance Feng, Qingyi Dijkstra, Hendrik Are North Atlantic Multidecadal SST Anomalies Westward Propagating? |
topic_facet |
Atlantic Multidecadal Oscillation climate networks mutual information Pearson correlation westward propagation conditional Hamming distance |
description |
The westward propagation of sea surface temperature (SST) anomalies is one of the main characteristics of one of the theories of the Atlantic Multidecadal Oscillation. Here we use techniques from complex network modeling to investigate the existence of the westward propagation in the North Atlantic SST observations. We construct Climate Networks (CNs) by using a linear Pearson correlation measure (resulting in Pearson Correlation Climate Network (PCCNs)) and a (nonlinear) mutual information measure (resulting in Mutual Information Climate Network (MICNs)) of spatial correlations between SST variations. Analysis of the topological properties of both types of CNs shows that the MICNs are better in capturing the main features of propagating patterns from the noisy SST data than PCCNs and that westward propagation of multidecadal SST anomalies indeed seems to occur in the North Atlantic. |
author2 |
Sub Physical Oceanography Marine and Atmospheric Research |
format |
Manuscript |
author |
Feng, Qingyi Dijkstra, Hendrik |
author_facet |
Feng, Qingyi Dijkstra, Hendrik |
author_sort |
Feng, Qingyi |
title |
Are North Atlantic Multidecadal SST Anomalies Westward Propagating? |
title_short |
Are North Atlantic Multidecadal SST Anomalies Westward Propagating? |
title_full |
Are North Atlantic Multidecadal SST Anomalies Westward Propagating? |
title_fullStr |
Are North Atlantic Multidecadal SST Anomalies Westward Propagating? |
title_full_unstemmed |
Are North Atlantic Multidecadal SST Anomalies Westward Propagating? |
title_sort |
are north atlantic multidecadal sst anomalies westward propagating? |
publishDate |
2014 |
url |
https://dspace.library.uu.nl/handle/1874/307261 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
0094-8276 https://dspace.library.uu.nl/handle/1874/307261 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1772184853259747328 |