A Plan for a Long-Term, Automated, Broadband Seismic Monitoring Network on the Global Seafloor
Establishing an extensive and highly durable, long‐term, seafloor network of autonomous broadband seismic stations to complement the land‐based Global Seismographic Network has been a goal of seismologists for decades. Seismic signals, chiefly the vibrations from earthquakes but also signals generat...
Published in: | Seismological Research Letters |
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Seismological Society of America
2020
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ftcaltechauth:oai:authors.library.caltech.edu:103033 2023-05-15T17:35:53+02:00 A Plan for a Long-Term, Automated, Broadband Seismic Monitoring Network on the Global Seafloor Kohler, Monica D. Hafner, Katrin Park, Jeffrey Irving, Jessica C. E. Caplan-Auerbach, Jackie Collins, John Berger, Jonathan Tréhu, Anne M. Romanowicz, Barbara Woodward, Robert L. 2020-05-01 application/pdf https://authors.library.caltech.edu/103033/ https://authors.library.caltech.edu/103033/3/SRL-2019123.pdf https://authors.library.caltech.edu/103033/2/srl-2019123_supplement.pdf https://resolver.caltech.edu/CaltechAUTHORS:20200506-121730323 en eng Seismological Society of America https://authors.library.caltech.edu/103033/3/SRL-2019123.pdf https://authors.library.caltech.edu/103033/2/srl-2019123_supplement.pdf Kohler, Monica D. and Hafner, Katrin and Park, Jeffrey and Irving, Jessica C. E. and Caplan-Auerbach, Jackie and Collins, John and Berger, Jonathan and Tréhu, Anne M. and Romanowicz, Barbara and Woodward, Robert L. (2020) A Plan for a Long-Term, Automated, Broadband Seismic Monitoring Network on the Global Seafloor. Seismological Research Letters, 91 (3). pp. 1343-1355. ISSN 0895-0695. doi:10.1785/0220190123. https://resolver.caltech.edu/CaltechAUTHORS:20200506-121730323 <https://resolver.caltech.edu/CaltechAUTHORS:20200506-121730323> other Article PeerReviewed 2020 ftcaltechauth https://doi.org/10.1785/0220190123 2021-11-18T18:56:18Z Establishing an extensive and highly durable, long‐term, seafloor network of autonomous broadband seismic stations to complement the land‐based Global Seismographic Network has been a goal of seismologists for decades. Seismic signals, chiefly the vibrations from earthquakes but also signals generated by storms and other environmental processes, have been processed from land‐based seismic stations to build intriguing but incomplete images of the Earth’s interior. Seismologists have mapped structures such as tectonic plates and other crustal remnants sinking deep into the mantle to obtain information on their chemical composition and physical state; but resolution of these structures from land stations is not globally uniform. Because the global surface is two‐thirds ocean, increasing the number of seismic stations located in the oceans is critical for better resolution of the Earth’s interior and tectonic structures. A recommendation for a long‐term seafloor seismic station pilot experiment is presented here. The overarching instrumentation goal of a pilot experiment is performance that will lead to the installation of a large number of long‐term autonomous ocean‐bottom seismic stations. The payoff of a network of stations separated from one another by a few hundred kilometers under the global oceans would be greatly refined resolution of the Earth’s interior at all depths. A second prime result would be enriched understanding of large‐earthquake rupture processes in both oceanic and continental plates. The experiment would take advantage of newly available technologies such as robotic wave gliders that put an affordable autonomous prototype within reach. These technologies would allow data to be relayed to satellites from seismometers that are deployed on the seafloor with long‐lasting, rechargeable batteries. Two regions are presented as promising arenas for such a prototype seafloor seismic station. One site is the central North Atlantic Ocean, and the other high‐interest locale is the central South Pacific Ocean. Article in Journal/Newspaper North Atlantic Caltech Authors (California Institute of Technology) Pacific Seismological Research Letters 91 3 1343 1355 |
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Open Polar |
collection |
Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
English |
description |
Establishing an extensive and highly durable, long‐term, seafloor network of autonomous broadband seismic stations to complement the land‐based Global Seismographic Network has been a goal of seismologists for decades. Seismic signals, chiefly the vibrations from earthquakes but also signals generated by storms and other environmental processes, have been processed from land‐based seismic stations to build intriguing but incomplete images of the Earth’s interior. Seismologists have mapped structures such as tectonic plates and other crustal remnants sinking deep into the mantle to obtain information on their chemical composition and physical state; but resolution of these structures from land stations is not globally uniform. Because the global surface is two‐thirds ocean, increasing the number of seismic stations located in the oceans is critical for better resolution of the Earth’s interior and tectonic structures. A recommendation for a long‐term seafloor seismic station pilot experiment is presented here. The overarching instrumentation goal of a pilot experiment is performance that will lead to the installation of a large number of long‐term autonomous ocean‐bottom seismic stations. The payoff of a network of stations separated from one another by a few hundred kilometers under the global oceans would be greatly refined resolution of the Earth’s interior at all depths. A second prime result would be enriched understanding of large‐earthquake rupture processes in both oceanic and continental plates. The experiment would take advantage of newly available technologies such as robotic wave gliders that put an affordable autonomous prototype within reach. These technologies would allow data to be relayed to satellites from seismometers that are deployed on the seafloor with long‐lasting, rechargeable batteries. Two regions are presented as promising arenas for such a prototype seafloor seismic station. One site is the central North Atlantic Ocean, and the other high‐interest locale is the central South Pacific Ocean. |
format |
Article in Journal/Newspaper |
author |
Kohler, Monica D. Hafner, Katrin Park, Jeffrey Irving, Jessica C. E. Caplan-Auerbach, Jackie Collins, John Berger, Jonathan Tréhu, Anne M. Romanowicz, Barbara Woodward, Robert L. |
spellingShingle |
Kohler, Monica D. Hafner, Katrin Park, Jeffrey Irving, Jessica C. E. Caplan-Auerbach, Jackie Collins, John Berger, Jonathan Tréhu, Anne M. Romanowicz, Barbara Woodward, Robert L. A Plan for a Long-Term, Automated, Broadband Seismic Monitoring Network on the Global Seafloor |
author_facet |
Kohler, Monica D. Hafner, Katrin Park, Jeffrey Irving, Jessica C. E. Caplan-Auerbach, Jackie Collins, John Berger, Jonathan Tréhu, Anne M. Romanowicz, Barbara Woodward, Robert L. |
author_sort |
Kohler, Monica D. |
title |
A Plan for a Long-Term, Automated, Broadband Seismic Monitoring Network on the Global Seafloor |
title_short |
A Plan for a Long-Term, Automated, Broadband Seismic Monitoring Network on the Global Seafloor |
title_full |
A Plan for a Long-Term, Automated, Broadband Seismic Monitoring Network on the Global Seafloor |
title_fullStr |
A Plan for a Long-Term, Automated, Broadband Seismic Monitoring Network on the Global Seafloor |
title_full_unstemmed |
A Plan for a Long-Term, Automated, Broadband Seismic Monitoring Network on the Global Seafloor |
title_sort |
plan for a long-term, automated, broadband seismic monitoring network on the global seafloor |
publisher |
Seismological Society of America |
publishDate |
2020 |
url |
https://authors.library.caltech.edu/103033/ https://authors.library.caltech.edu/103033/3/SRL-2019123.pdf https://authors.library.caltech.edu/103033/2/srl-2019123_supplement.pdf https://resolver.caltech.edu/CaltechAUTHORS:20200506-121730323 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://authors.library.caltech.edu/103033/3/SRL-2019123.pdf https://authors.library.caltech.edu/103033/2/srl-2019123_supplement.pdf Kohler, Monica D. and Hafner, Katrin and Park, Jeffrey and Irving, Jessica C. E. and Caplan-Auerbach, Jackie and Collins, John and Berger, Jonathan and Tréhu, Anne M. and Romanowicz, Barbara and Woodward, Robert L. (2020) A Plan for a Long-Term, Automated, Broadband Seismic Monitoring Network on the Global Seafloor. Seismological Research Letters, 91 (3). pp. 1343-1355. ISSN 0895-0695. doi:10.1785/0220190123. https://resolver.caltech.edu/CaltechAUTHORS:20200506-121730323 <https://resolver.caltech.edu/CaltechAUTHORS:20200506-121730323> |
op_rights |
other |
op_doi |
https://doi.org/10.1785/0220190123 |
container_title |
Seismological Research Letters |
container_volume |
91 |
container_issue |
3 |
container_start_page |
1343 |
op_container_end_page |
1355 |
_version_ |
1766135175657291776 |