ACOBAR travel times - Fram Strait 2010-2012

The ACOBAR ocean acoustic tomography system consisted of three moorings with low frequency, broadband transceivers (A, B, and C) forming a triangle in the central, deep-water part of Fram Strait during 2010–2012. This data set consists of acoustic travel times and corresponding arrival angles for the entire 2011–2012 deployment using estimator-correlator processing. The kernel of the estimator correlate is optimised manually for each Receiver. Receiver DA for transmissions from A we used kernel with a bandwidth of 7.5 Hz and a coherence time of 30 s. Receiver A for transmissions from B we used kernel with a bandwidth of 2.0 Hz and a coherence time of 15 s. Receiver DA for transmissions from B we used kernel with a bandwidth of 7.5 Hz and a coherence time of 30 s.The data processing is documented in Sagen et al. 2017. The data are used either to validate the capability of ocean models to provide realistic input to acoustic models or in inversion schemes to provide mean ocean sound speed between source and receivers.

Data and Resources

Additional Info

Field Value
Principal Investigator Hanne Sagen(PI), Matthew Dzieciuch, Peter Worcester, Florian Geyer,
Data Curator Torill Hamre
Last Updated November 27, 2018, 13:10 (CET)
Created November 16, 2018, 11:15 (CET)
Parameter name(s) acoustic travel time, acoustic arrival angle
Project/Program name(s) ACOBAR (EC contract 212887)
Observing system name Fram Strait Multipurpose Acoustic System