Tomography buoys successfully recovered after one year in the Fram Strait

The DAMOCLES acoustic tomography moorings with source and receivers were successfully recovered today by Dr. Hanne Sagen, NERSC, and her team onboard RV Håkon Mosby.

The objective of this first acoustic tomography experiment in the Fram Strait is to develop new ocean observing systems for the Arctic Ocean.

Acoustic tomography data are used to estimate the mean temperature and current fields in the deep ocean. The Fram Strait experiment includes data from CTD sections, gliders and moored profilers. The data are used in combination with high resolution ice-ocean models to estimate the properties and transport of water masses in the Fram Strait. The acoustic sources and receivers will also be used for transmission of long-range acoustic navigation signals and commands in order to operate gliders and AUVs.

Data from this first experiment will be analysed in the coming months and the first results are expected before the end of 2009.

The experiment will continue from 2010 – 2012 as part of the EU ACOBAR project.

http://acobar.nersc.no/