Microseismic noise in the Saint Peter and Saint Paul Archipelago, equatorial Atlantic
Microseismic noise, also known as ambient seismic noise, are continuous vibrations mostly composed of Rayleigh waves pervasively recorded in the mili Hertz to 1 Hz frequency range. Their precise source mechanisms are under investigations and related to atmospheric perturbations and ocean gravity wav...
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ftcsic:oai:digital.csic.es:10261/159268 2024-02-11T10:06:44+01:00 Microseismic noise in the Saint Peter and Saint Paul Archipelago, equatorial Atlantic de Queiroz, Daniel E. Do Nascimento, Aderson Farias Schimmel, Martin Conselho Nacional das Fundaçôes Estaduais de Amparo à Pesquisa (Brasil) 2017-12 http://hdl.handle.net/10261/159268 https://doi.org/10.1016/j.jsames.2017.09.035 en eng Elsevier http://dx.doi.org/10.1016/j.jsames.2017.09.035 Sí Journal of South American Earth Sciences, 80: 304-315 (2017) 0895-9811 http://hdl.handle.net/10261/159268 doi:10.1016/j.jsames.2017.09.035 1873-0647 open Microseismic noise Primary microseisms Secondary microseisms Saint Peter and Saint Paul Archipelago Wind speed Significant wave height Atlantic Ocean artículo http://purl.org/coar/resource_type/c_6501 2017 ftcsic https://doi.org/10.1016/j.jsames.2017.09.035 2024-01-16T10:27:39Z Microseismic noise, also known as ambient seismic noise, are continuous vibrations mostly composed of Rayleigh waves pervasively recorded in the mili Hertz to 1 Hz frequency range. Their precise source mechanisms are under investigations and related to atmospheric perturbations and ocean gravity waves. Our purpose is to show the behavior of the microseismic noise recorded in the Saint Peter and Saint Paul Archipelago (SPSPA) with respect to wind intensity and ocean waves height in this region, between the North and South Atlantic Ocean. We have recorded both primary microseisms (PM) 0.04-0.12 Hz and the secondary microseisms (SM) 0.12-0.4 Hz during almost four years (2012-2015) and we used frequency, temporal, spatial and statistical correlation analysis to do qualitative and quantitative analysis with respect to wind speed intensity and significant wave height for the same periods. The results indicate a good correlation between the PM and the SM noise in the region particularly during the winter in the Northern Hemisphere and a poor correlation during the summer. We have also shown that probably most of the PM are generated in the SPSPA itself. We note that the intensity of SM recorded in SPSPA appears to have a seasonal behavior with the summer and winter in the Northern Hemisphere, and seems to influence the correlation between the PM and the SM, suggesting that the sources of the PM and the SM are not related to the same atmospheric event and from different places. PM generation would occur near the SPSPA whilst the SM would have distant sources towards the North Atlantic. (C) 2017 Elsevier Ltd. All rights reserved. AFdN and MS thank CNPq for the grant 402174/2012-7 (Science without Borders Programme), AFdN thank CNPq for grants 484441/2012-4 and 303817/2014-3. Peer reviewed Article in Journal/Newspaper North Atlantic South Atlantic Ocean Digital.CSIC (Spanish National Research Council) Saint-Paul ENVELOPE(-57.715,-57.715,51.467,51.467) Journal of South American Earth Sciences 80 304 315 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Microseismic noise Primary microseisms Secondary microseisms Saint Peter and Saint Paul Archipelago Wind speed Significant wave height Atlantic Ocean |
spellingShingle |
Microseismic noise Primary microseisms Secondary microseisms Saint Peter and Saint Paul Archipelago Wind speed Significant wave height Atlantic Ocean de Queiroz, Daniel E. Do Nascimento, Aderson Farias Schimmel, Martin Microseismic noise in the Saint Peter and Saint Paul Archipelago, equatorial Atlantic |
topic_facet |
Microseismic noise Primary microseisms Secondary microseisms Saint Peter and Saint Paul Archipelago Wind speed Significant wave height Atlantic Ocean |
description |
Microseismic noise, also known as ambient seismic noise, are continuous vibrations mostly composed of Rayleigh waves pervasively recorded in the mili Hertz to 1 Hz frequency range. Their precise source mechanisms are under investigations and related to atmospheric perturbations and ocean gravity waves. Our purpose is to show the behavior of the microseismic noise recorded in the Saint Peter and Saint Paul Archipelago (SPSPA) with respect to wind intensity and ocean waves height in this region, between the North and South Atlantic Ocean. We have recorded both primary microseisms (PM) 0.04-0.12 Hz and the secondary microseisms (SM) 0.12-0.4 Hz during almost four years (2012-2015) and we used frequency, temporal, spatial and statistical correlation analysis to do qualitative and quantitative analysis with respect to wind speed intensity and significant wave height for the same periods. The results indicate a good correlation between the PM and the SM noise in the region particularly during the winter in the Northern Hemisphere and a poor correlation during the summer. We have also shown that probably most of the PM are generated in the SPSPA itself. We note that the intensity of SM recorded in SPSPA appears to have a seasonal behavior with the summer and winter in the Northern Hemisphere, and seems to influence the correlation between the PM and the SM, suggesting that the sources of the PM and the SM are not related to the same atmospheric event and from different places. PM generation would occur near the SPSPA whilst the SM would have distant sources towards the North Atlantic. (C) 2017 Elsevier Ltd. All rights reserved. AFdN and MS thank CNPq for the grant 402174/2012-7 (Science without Borders Programme), AFdN thank CNPq for grants 484441/2012-4 and 303817/2014-3. Peer reviewed |
author2 |
Conselho Nacional das Fundaçôes Estaduais de Amparo à Pesquisa (Brasil) |
format |
Article in Journal/Newspaper |
author |
de Queiroz, Daniel E. Do Nascimento, Aderson Farias Schimmel, Martin |
author_facet |
de Queiroz, Daniel E. Do Nascimento, Aderson Farias Schimmel, Martin |
author_sort |
de Queiroz, Daniel E. |
title |
Microseismic noise in the Saint Peter and Saint Paul Archipelago, equatorial Atlantic |
title_short |
Microseismic noise in the Saint Peter and Saint Paul Archipelago, equatorial Atlantic |
title_full |
Microseismic noise in the Saint Peter and Saint Paul Archipelago, equatorial Atlantic |
title_fullStr |
Microseismic noise in the Saint Peter and Saint Paul Archipelago, equatorial Atlantic |
title_full_unstemmed |
Microseismic noise in the Saint Peter and Saint Paul Archipelago, equatorial Atlantic |
title_sort |
microseismic noise in the saint peter and saint paul archipelago, equatorial atlantic |
publisher |
Elsevier |
publishDate |
2017 |
url |
http://hdl.handle.net/10261/159268 https://doi.org/10.1016/j.jsames.2017.09.035 |
long_lat |
ENVELOPE(-57.715,-57.715,51.467,51.467) |
geographic |
Saint-Paul |
geographic_facet |
Saint-Paul |
genre |
North Atlantic South Atlantic Ocean |
genre_facet |
North Atlantic South Atlantic Ocean |
op_relation |
http://dx.doi.org/10.1016/j.jsames.2017.09.035 Sí Journal of South American Earth Sciences, 80: 304-315 (2017) 0895-9811 http://hdl.handle.net/10261/159268 doi:10.1016/j.jsames.2017.09.035 1873-0647 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.jsames.2017.09.035 |
container_title |
Journal of South American Earth Sciences |
container_volume |
80 |
container_start_page |
304 |
op_container_end_page |
315 |
_version_ |
1790604649209790464 |