Groundwater Variations from Autocorrelation and Receiver Functions

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dc.contributor.authorKim, Doyeon
dc.contributor.authorVed, Lekic
dc.date.accessioned2019-11-06T19:31:02Z
dc.date.available2019-11-06T19:31:02Z
dc.date.issued2019
dc.description1. Receiver functions at IU.HKT station 2. Seismic velocity perturbation data from ambient noise autocorrelation 3. Synthetic receiver functions at IU.HKT stationen_US
dc.description.abstractThis dataset supports the following research: Using a 20-year continuous broadband record and two independent single-station techniques – ambient noise autocorrelation and receiver functions – we document a relationship between subsurface seismic response and groundwater levels (GWL) in the Gulf Coast Aquifer System of southern Texas. We find that a surge of GWL following three consecutive hurricanes and documented at an adjacent monitoring well is accompanied with changes in receiver function power spectra and ambient noise autocorrelations. Using a simple physical model, we show that GWL changes should affect P- (VP) more strongly than S-wave (VS) velocities, consistent with our observations and previous ones based on inter-station correlations. Agreement between receiver function and ambient noise analyses shows that both can be used to reliably estimate temporal changes in subsurface properties on long timescales. Due to their sensitivity to VP, single-station techniques respond more strongly to GWL changes, making them useful for characterizing and monitoring aquifer systems.en_US
dc.description.sponsorshipPackard Foundation and University of Marylanden_US
dc.description.urihttps://doi.org/10.1029/2019GL084719
dc.identifierhttps://doi.org/10.13016/joko-9th4
dc.identifier.urihttp://hdl.handle.net/1903/25258
dc.language.isoen_USen_US
dc.relation.isAvailableAtCollege of Computer, Mathematical & Natural Sciencesen_us
dc.relation.isAvailableAtGeologyen_us
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.subjectAmbient noiseen_US
dc.subjectgroundwater
dc.subjectautocorrelation
dc.subjectreceiver functions
dc.subjectseismic velocity change
dc.subjecthurricane
dc.titleGroundwater Variations from Autocorrelation and Receiver Functionsen_US
dc.typeDataseten_US

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Receiver functions at IU.HKT seismic station
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Seismic velocity perturbation data computed from ambient noise autocorrelations
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Synthetic receiver functions at IU.HKT station
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