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

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

2018
By Gal, M. ; Reading, A. M. ; Rawlinson, N. ; ...
Source: Journal of Geophysical Research: Solid Earth, 123(8), 6871-6889

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Journal Title:

Journal of Geophysical Research: Solid Earth
Personal Author:

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

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

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Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Geophysics 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;
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PDF
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American Geophysical Union (AGU)
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Journal Article
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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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