Identifying the Frequency Dependent Interactions between Ocean Waves and the Continental Margin on Seismic Noise Recordings
This study presents an exploration into identifying the interactions between ocean waves and the continental margin in the origination of double-frequency (DF, 0.1–0.5 Hz) microseisms recorded at 33 stations across East Coast of USA (ECUSA) during a 10-day period of ordinary ocean wave climate. Dail...
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ftmdpi:oai:mdpi.com:/2077-1312/8/2/134/ 2023-08-20T04:08:24+02:00 Identifying the Frequency Dependent Interactions between Ocean Waves and the Continental Margin on Seismic Noise Recordings Zhen Guo Yu Huang Adnan Aydin Mei Xue agris 2020-02-19 application/pdf https://doi.org/10.3390/jmse8020134 EN eng Multidisciplinary Digital Publishing Institute Ocean Engineering https://dx.doi.org/10.3390/jmse8020134 https://creativecommons.org/licenses/by/4.0/ Journal of Marine Science and Engineering; Volume 8; Issue 2; Pages: 134 ocean waves double-frequency microseisms continental margin continental slope Text 2020 ftmdpi https://doi.org/10.3390/jmse8020134 2023-07-31T23:08:06Z This study presents an exploration into identifying the interactions between ocean waves and the continental margin in the origination of double-frequency (DF, 0.1–0.5 Hz) microseisms recorded at 33 stations across East Coast of USA (ECUSA) during a 10-day period of ordinary ocean wave climate. Daily primary vibration directions are calculated in three frequency bands and projected as great circles passing through each station. In each band, the great circles from all stations exhibit largest spatial density primarily near the continental slope in the western North Atlantic Ocean. Generation mechanisms of three DF microseism events are explored by comparing temporal and spatial variations of the DF microseisms with the migration patterns of ocean wave fronts in Wavewatch III hindcasts. Correlation analyses are conducted by comparing the frequency compositions of and calculating the Pearson correlation coefficients between the DF microseisms and the ocean waves recorded at selected buoys. The observations and analyses lead to a hypothesis that the continental slope causes wave reflection, generating low frequency DF energy and that the continental shelf is where high frequency DF energy is mainly generated in ECUSA. The hypothesis is supported by the primary vibration directions being mainly perpendicular to the strike of the continental slope. Text North Atlantic MDPI Open Access Publishing Journal of Marine Science and Engineering 8 2 134 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
ocean waves double-frequency microseisms continental margin continental slope |
spellingShingle |
ocean waves double-frequency microseisms continental margin continental slope Zhen Guo Yu Huang Adnan Aydin Mei Xue Identifying the Frequency Dependent Interactions between Ocean Waves and the Continental Margin on Seismic Noise Recordings |
topic_facet |
ocean waves double-frequency microseisms continental margin continental slope |
description |
This study presents an exploration into identifying the interactions between ocean waves and the continental margin in the origination of double-frequency (DF, 0.1–0.5 Hz) microseisms recorded at 33 stations across East Coast of USA (ECUSA) during a 10-day period of ordinary ocean wave climate. Daily primary vibration directions are calculated in three frequency bands and projected as great circles passing through each station. In each band, the great circles from all stations exhibit largest spatial density primarily near the continental slope in the western North Atlantic Ocean. Generation mechanisms of three DF microseism events are explored by comparing temporal and spatial variations of the DF microseisms with the migration patterns of ocean wave fronts in Wavewatch III hindcasts. Correlation analyses are conducted by comparing the frequency compositions of and calculating the Pearson correlation coefficients between the DF microseisms and the ocean waves recorded at selected buoys. The observations and analyses lead to a hypothesis that the continental slope causes wave reflection, generating low frequency DF energy and that the continental shelf is where high frequency DF energy is mainly generated in ECUSA. The hypothesis is supported by the primary vibration directions being mainly perpendicular to the strike of the continental slope. |
format |
Text |
author |
Zhen Guo Yu Huang Adnan Aydin Mei Xue |
author_facet |
Zhen Guo Yu Huang Adnan Aydin Mei Xue |
author_sort |
Zhen Guo |
title |
Identifying the Frequency Dependent Interactions between Ocean Waves and the Continental Margin on Seismic Noise Recordings |
title_short |
Identifying the Frequency Dependent Interactions between Ocean Waves and the Continental Margin on Seismic Noise Recordings |
title_full |
Identifying the Frequency Dependent Interactions between Ocean Waves and the Continental Margin on Seismic Noise Recordings |
title_fullStr |
Identifying the Frequency Dependent Interactions between Ocean Waves and the Continental Margin on Seismic Noise Recordings |
title_full_unstemmed |
Identifying the Frequency Dependent Interactions between Ocean Waves and the Continental Margin on Seismic Noise Recordings |
title_sort |
identifying the frequency dependent interactions between ocean waves and the continental margin on seismic noise recordings |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/jmse8020134 |
op_coverage |
agris |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of Marine Science and Engineering; Volume 8; Issue 2; Pages: 134 |
op_relation |
Ocean Engineering https://dx.doi.org/10.3390/jmse8020134 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/jmse8020134 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
8 |
container_issue |
2 |
container_start_page |
134 |
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1774720649408806912 |