Abstract
We present an innovative and efficient combination of two passive geophysical methodologies: ambient noise surface wave tomography (ANSWT), and self-potential (SP) measurements. We collected 5 days of continuous ambient noise seismic data, using a total of 54 autonomous seismic nodes. Both ocean wave and traffic noise sources are used. Additionally, 386 SP measurements with an average 20 m spacing were performed in the same area. We demonstrate the successful integration of these two data sets in a jointinterpretation framework. We test the approach in a study site comprised of a valley-ridge complex on the leeward side of the island of O‘ahu, Hawai‘i, USA. This integrated approach highlights the flow of groundwater in identified paleo-channels at the erosional surface of the volcanic bedrock. The basaltic bedrock of the ridges also likely forms an important groundwater flow unit. Complementing SP data with seismic data enables us to place groundwater flow inferences, as made from SP data, at depth.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
