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Ref.: JONAS Deliverable 4.1, February 2020
Executive summary:
JONAS addresses the impact of underwater noise on sensitive species and the potential threat
to biodiversity, in the EU North Atlantic area. With this in mind, the main objective of this
report is to assess the installed capacity for the available acoustic data recording stations,
their technical specifications and the potential to meet the requirements of action A4.2. This
report will focus on two aspects: on the data availability for noise map calibration purpose,
and on the recommendations for the production of raw acoustic data files. The complete
inventory of the data gathering stations with their characteristics and specifics, from the
hydrophone input up to data formatting and availability is made. The evaluation of the
potential to meet the requirements of action A4.2, taking into account the North Atlantic
Area specificities is also performed. Based on the stations inventory it was possible to define
an operational year and to propose data technical level recommendations for instrument
calibration and measurement methodology.