North Atlantic Oscillation (NAO) climate index hidden in ocean generated secondary microseisms
With the role of surface winds in the generation of ocean waves, secondary microseisms induced by ocean wave-wave interactions represent a unique interconnection between the solid Earth, the ocean and global atmospheric circulation patterns. In this study, temporal changes in the ocean generated sei...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2021
|
Subjects: | |
Online Access: | https://dair.dias.ie/id/eprint/1139/ https://dair.dias.ie/id/eprint/1139/2/LePape_Bean_2021_GRL.pdf https://doi.org/10.1029/2021GL093657 |
id |
ftdublininstadvs:oai:dair.dias.ie:1139 |
---|---|
record_format |
openpolar |
spelling |
ftdublininstadvs:oai:dair.dias.ie:1139 2023-05-15T17:27:45+02:00 North Atlantic Oscillation (NAO) climate index hidden in ocean generated secondary microseisms Le Pape, Florian Bean, Christopher J. 2021-08-09 text https://dair.dias.ie/id/eprint/1139/ https://dair.dias.ie/id/eprint/1139/2/LePape_Bean_2021_GRL.pdf https://doi.org/10.1029/2021GL093657 en eng https://dair.dias.ie/id/eprint/1139/2/LePape_Bean_2021_GRL.pdf Le Pape, Florian and Bean, Christopher J. (2021) North Atlantic Oscillation (NAO) climate index hidden in ocean generated secondary microseisms. Geophysical Research Letters, 48 (17). ISSN 0094-8276 Online ISSN 1944-8007 https://doi.org/10.1029/2021GL093657 Article PeerReviewed 2021 ftdublininstadvs https://doi.org/10.1029/2021GL093657 2022-12-29T23:59:46Z With the role of surface winds in the generation of ocean waves, secondary microseisms induced by ocean wave-wave interactions represent a unique interconnection between the solid Earth, the ocean and global atmospheric circulation patterns. In this study, temporal changes in the ocean generated seismic wavefield in Northeast Atlantic are monitored offshore West of Ireland using ocean bottom seismometers located on top of a thick sedimentary basin. Comparisons with numerical seismic simulations and ocean wave model hindcast data suggest those variations are correlated with changing patterns in ocean wave interactions closely linked to secondary microseism generation areas. Here we show how those changes, accentuated by the specific structure of the Irish offshore margin, reveal the signature of the North Atlantic Oscillation (NAO) in the Earth’s background seismic wavefield. In the North Atlantic, secondary microseism sources likely fluctuate with the changing storm track in response to variations in the NAO. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Northeast Atlantic Dublin Institute for Advanced Studies: DIAS Institutional Repository Geophysical Research Letters 48 17 |
institution |
Open Polar |
collection |
Dublin Institute for Advanced Studies: DIAS Institutional Repository |
op_collection_id |
ftdublininstadvs |
language |
English |
description |
With the role of surface winds in the generation of ocean waves, secondary microseisms induced by ocean wave-wave interactions represent a unique interconnection between the solid Earth, the ocean and global atmospheric circulation patterns. In this study, temporal changes in the ocean generated seismic wavefield in Northeast Atlantic are monitored offshore West of Ireland using ocean bottom seismometers located on top of a thick sedimentary basin. Comparisons with numerical seismic simulations and ocean wave model hindcast data suggest those variations are correlated with changing patterns in ocean wave interactions closely linked to secondary microseism generation areas. Here we show how those changes, accentuated by the specific structure of the Irish offshore margin, reveal the signature of the North Atlantic Oscillation (NAO) in the Earth’s background seismic wavefield. In the North Atlantic, secondary microseism sources likely fluctuate with the changing storm track in response to variations in the NAO. |
format |
Article in Journal/Newspaper |
author |
Le Pape, Florian Bean, Christopher J. |
spellingShingle |
Le Pape, Florian Bean, Christopher J. North Atlantic Oscillation (NAO) climate index hidden in ocean generated secondary microseisms |
author_facet |
Le Pape, Florian Bean, Christopher J. |
author_sort |
Le Pape, Florian |
title |
North Atlantic Oscillation (NAO) climate index hidden in ocean generated secondary microseisms |
title_short |
North Atlantic Oscillation (NAO) climate index hidden in ocean generated secondary microseisms |
title_full |
North Atlantic Oscillation (NAO) climate index hidden in ocean generated secondary microseisms |
title_fullStr |
North Atlantic Oscillation (NAO) climate index hidden in ocean generated secondary microseisms |
title_full_unstemmed |
North Atlantic Oscillation (NAO) climate index hidden in ocean generated secondary microseisms |
title_sort |
north atlantic oscillation (nao) climate index hidden in ocean generated secondary microseisms |
publishDate |
2021 |
url |
https://dair.dias.ie/id/eprint/1139/ https://dair.dias.ie/id/eprint/1139/2/LePape_Bean_2021_GRL.pdf https://doi.org/10.1029/2021GL093657 |
genre |
North Atlantic North Atlantic oscillation Northeast Atlantic |
genre_facet |
North Atlantic North Atlantic oscillation Northeast Atlantic |
op_relation |
https://dair.dias.ie/id/eprint/1139/2/LePape_Bean_2021_GRL.pdf Le Pape, Florian and Bean, Christopher J. (2021) North Atlantic Oscillation (NAO) climate index hidden in ocean generated secondary microseisms. Geophysical Research Letters, 48 (17). ISSN 0094-8276 Online ISSN 1944-8007 https://doi.org/10.1029/2021GL093657 |
op_doi |
https://doi.org/10.1029/2021GL093657 |
container_title |
Geophysical Research Letters |
container_volume |
48 |
container_issue |
17 |
_version_ |
1766120033973436416 |