Description of task
Our work in Task 8.2 the next 18 months will be to deploy the ocean acoustic tomography system in 2008, and to obtain and analyse sample data via acoustic modems and one year of tomography data after recovery in 2009. The most important issue will be to carefully plan and carry out: (1) the deployment of the two tomography moorings, (2) the data download by modems and (3) the full mooring recovery of the ocean acoustic tomography system successfully in the Fram Strait.
RV Håkon Mosby will be rented and used for a anchor last deployment in August 2008. Another cruise using KV Svalbard is planned in the end of September 2008 to complete positioning of the transponders, to download pre-processed acoustic data by acoustic modems from ship, and to listen to the source at different locations within the ice pack. The tomography system will be recovered in summer 2009, near month 42.
The downloaded pre-processed travel time data will be corrected for mooring motion and clock drift before they are forwarded to the Streaming Mode Tomographic Analysis System (SMTAS) for inversions (see WP 3). After the full mooring deployment, one year of raw acoustic tomography data will be available for more detailed processing, analysis and inversions/assimilation in the remaining part of the DAMOCLES project.
