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TZID:Pacific/Honolulu
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CLASS:PUBLIC
CREATED:20260515T103554Z
DESCRIPTION:The 75 Hz center-frequency Kauai-Beacon Source is well-situated for observing the North Pacific Ocean acoustically, and ongoing efforts enable transmissions and analysis of broadband signals for this 18-month duration time-series. Previously, we demonstrated acoustic receiving along paths to Wake Island (∼3500 km), Monterey Bay, and OOI near Oregon (∼4000 km). Travel time observations to Wake Island compare well with HYCOM reanalysis data in 2023, but the model does not capture a continuous warming trend observed in 2024. The maximum travel time difference observed to date nominally is 0.5 second. Bathymetric stripping results mostly in SOFAR-channel-only propagation, limiting variability to deeper and non-seasonal energy. We hypothesize that the 2024 North Pacific Ocean El Nino contributes to a significant warming of the assumed stable SOFAR channel. We also discuss progress on sensitivity kernels, our time series repository, tidal correlations, engineering efforts to modernize its infrastructure, and collaboration opportunities. // Kay (Kai) Gemba, Ph.D.\nAssociate Professor, Department of Physics\nNaval Postgraduate School, Monterey, CA, USA // *Zoom only*\nMeeting ID: 963 5962 3640\nPasscode: OREseminar\nhttps://hawaii.zoom.us/j/96359623640\n
DTEND;TZID=Pacific/Honolulu:20241003T023000Z
DTSTAMP:20260515T103554Z
DTSTART;TZID=Pacific/Honolulu:20241003T013000Z
LAST-MODIFIED:20260515T103554Z
LOCATION:Zoom Meeting, Please see description for Meeting ID and Passcode
PRIORITY:5
SEQUENCE:0
SUMMARY;LANGUAGE=en-us:ORE Seminar: Observing the ocean acoustically with the Kauai Beacon source
TRANSP:OPAQUE
UID:177887735443069web-support-l@lists.hawaii.edu
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