Matched Field Processing of Three‐Component Seismic Array Data Applied to Rayleigh and Love Microseisms

Gal, M.; Reading, A. M.; Rawlinson, N.; Schulte‐Pelkum, V.

doi:10.1029/2018jb015526

i

Matched Field Processing of Three‐Component Seismic Array Data Applied to Rayleigh and Love Microseisms

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2018
By Gal, M. ; Reading, A. M. ; Rawlinson, N. ; ...

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Journal Title:

Journal of Geophysical Research: Solid Earth
Personal Author:

Gal, M. ; Reading, A. M. ; Rawlinson, N. ; Schulte‐Pelkum, V.
NOAA Program & Office:

CIRES (Cooperative Institute for Research in Environmental Sciences)
Description:

Weextendthree-componentplanewavebeamformingtoamoregeneralformanddevisea framework,whichincorporatesvelocityheterogeneitiesoftheseismicpropagationmediumandallowsus toestimateaccuratelysourcesthatdonotfollowthesimpleplanewaveassumption.Thisisachievedby utilizingfastmarchingtotrackseismicwavefrontsforgivensurfacewavephasevelocitymaps.TheresultingmatchedﬁeldprocessingapproachisusedtostudythesurfacewavelocationsofRayleighandLovewaves at8and16sbasedondatafromfourseismicarraysinthewesternUnitedStates.Byaccuratelyaccounting for the path propagation eﬀects, we are able to map microseism surface wave source locations moreaccuratelythanconventionalplanewavebeamforming.Intheprimarymicroseismsfrequencyrange,Love wavesaredominantoverRayleighwavesanddisplayadirectionalradiationpattern.Inthesecondary
Keywords:

Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Geophysics Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Space And Planetary Science
Source:

Journal of Geophysical Research: Solid Earth, 123(8), 6871-6889
DOI:

https://doi.org/10.1029/2018jb015526
ISSN:

2169-9313 ; 2169-9356
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
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Other
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urn:sha256:32dc91e09e6d3a935fd07aea35357c80b180be6647ae0663c3dcbc7a55511ac6
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https://repository.library.noaa.gov/view/noaa/53210/noaa_53210_DS1.pdf
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[PDF - 9.97 MB ]

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