Observation of deep water microseisms in the North Atlantic Ocean using tide modulations
International audience Key Points: • Tide modulations of the microseismic energy are observed at shoreline stations • Coastal and open-sea microseismic sources coexist in different frequency ranges • Most of the 2–5 s period microseisms on the Atlantic coast come from deep ocean Abstract Ocean activ...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2015
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Online Access: | https://hal.science/hal-01277085 https://hal.science/hal-01277085/document https://hal.science/hal-01277085/file/Beucler2015.pdf https://doi.org/10.1002/2014GL062347 |
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ftmeteofrance:oai:HAL:hal-01277085v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Météo-France: HAL |
op_collection_id |
ftmeteofrance |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Beucler, Éric Mocquet, A. Schimmel, Martin Chevrot, Sébastien Quillard, Olivier Vergne, Jérôme Sylvander, Matthieu Observation of deep water microseisms in the North Atlantic Ocean using tide modulations |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
description |
International audience Key Points: • Tide modulations of the microseismic energy are observed at shoreline stations • Coastal and open-sea microseismic sources coexist in different frequency ranges • Most of the 2–5 s period microseisms on the Atlantic coast come from deep ocean Abstract Ocean activity produces continuous and ubiquitous seismic energy mostly in the 2–20 s period band, known as microseismic noise. Between 2 and 10 s period, secondary microseisms (SM) are generated by swell reflections close to the shores and/or by opposing swells in the deep ocean. However, unique conditions are required in order for surface waves generated by deep-ocean microseisms to be observed on land. By comparing short-duration power spectral densities at both Atlantic shoreline and inland seismic stations, we show that ocean tides strongly modulate the seismic energy in a wide period band except between 2.5 and 5 s. This tidal proxy reveals the existence of an ex situ short-period contribution of the SM peak. Comparison with swell spectra at surrounding buoys suggests that the largest part of this extra energy comes from deep ocean-generated microseisms. The energy modulation might be also used in numerical models of microseismic generation to constrain coastal reflection coefficients. |
author2 |
Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institute of Earth Sciences Jaume Almera Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC) Dynamique terrestre et planétaire (DTP) Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique (LHEEA) École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS) Institut de physique du globe de Strasbourg (IPGS) Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut de recherche en astrophysique et planétologie (IRAP) ANR-11-EQPX-0040,RESIF-CORE,Réseau sismologique et géodésique français : l'équipement fondamental(2011) |
format |
Article in Journal/Newspaper |
author |
Beucler, Éric Mocquet, A. Schimmel, Martin Chevrot, Sébastien Quillard, Olivier Vergne, Jérôme Sylvander, Matthieu |
author_facet |
Beucler, Éric Mocquet, A. Schimmel, Martin Chevrot, Sébastien Quillard, Olivier Vergne, Jérôme Sylvander, Matthieu |
author_sort |
Beucler, Éric |
title |
Observation of deep water microseisms in the North Atlantic Ocean using tide modulations |
title_short |
Observation of deep water microseisms in the North Atlantic Ocean using tide modulations |
title_full |
Observation of deep water microseisms in the North Atlantic Ocean using tide modulations |
title_fullStr |
Observation of deep water microseisms in the North Atlantic Ocean using tide modulations |
title_full_unstemmed |
Observation of deep water microseisms in the North Atlantic Ocean using tide modulations |
title_sort |
observation of deep water microseisms in the north atlantic ocean using tide modulations |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.science/hal-01277085 https://hal.science/hal-01277085/document https://hal.science/hal-01277085/file/Beucler2015.pdf https://doi.org/10.1002/2014GL062347 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-01277085 Geophysical Research Letters, 2015, ⟨10.1002/2014GL062347⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2014GL062347 hal-01277085 https://hal.science/hal-01277085 https://hal.science/hal-01277085/document https://hal.science/hal-01277085/file/Beucler2015.pdf doi:10.1002/2014GL062347 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/2014GL062347 |
container_title |
Geophysical Research Letters |
container_volume |
42 |
container_issue |
2 |
container_start_page |
316 |
op_container_end_page |
322 |
_version_ |
1810463929718013952 |
spelling |
ftmeteofrance:oai:HAL:hal-01277085v1 2024-09-15T18:23:41+00:00 Observation of deep water microseisms in the North Atlantic Ocean using tide modulations Beucler, Éric Mocquet, A. Schimmel, Martin Chevrot, Sébastien Quillard, Olivier Vergne, Jérôme Sylvander, Matthieu Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institute of Earth Sciences Jaume Almera Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC) Dynamique terrestre et planétaire (DTP) Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique (LHEEA) École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS) Institut de physique du globe de Strasbourg (IPGS) Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut de recherche en astrophysique et planétologie (IRAP) ANR-11-EQPX-0040,RESIF-CORE,Réseau sismologique et géodésique français : l'équipement fondamental(2011) 2015 https://hal.science/hal-01277085 https://hal.science/hal-01277085/document https://hal.science/hal-01277085/file/Beucler2015.pdf https://doi.org/10.1002/2014GL062347 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1002/2014GL062347 hal-01277085 https://hal.science/hal-01277085 https://hal.science/hal-01277085/document https://hal.science/hal-01277085/file/Beucler2015.pdf doi:10.1002/2014GL062347 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-01277085 Geophysical Research Letters, 2015, ⟨10.1002/2014GL062347⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2015 ftmeteofrance https://doi.org/10.1002/2014GL062347 2024-06-25T00:21:55Z International audience Key Points: • Tide modulations of the microseismic energy are observed at shoreline stations • Coastal and open-sea microseismic sources coexist in different frequency ranges • Most of the 2–5 s period microseisms on the Atlantic coast come from deep ocean Abstract Ocean activity produces continuous and ubiquitous seismic energy mostly in the 2–20 s period band, known as microseismic noise. Between 2 and 10 s period, secondary microseisms (SM) are generated by swell reflections close to the shores and/or by opposing swells in the deep ocean. However, unique conditions are required in order for surface waves generated by deep-ocean microseisms to be observed on land. By comparing short-duration power spectral densities at both Atlantic shoreline and inland seismic stations, we show that ocean tides strongly modulate the seismic energy in a wide period band except between 2.5 and 5 s. This tidal proxy reveals the existence of an ex situ short-period contribution of the SM peak. Comparison with swell spectra at surrounding buoys suggests that the largest part of this extra energy comes from deep ocean-generated microseisms. The energy modulation might be also used in numerical models of microseismic generation to constrain coastal reflection coefficients. Article in Journal/Newspaper North Atlantic Météo-France: HAL Geophysical Research Letters 42 2 316 322 |