BIAS Implementation Plan – Monitoring and assessment guidance for continuous low frequency sound in the Baltic Sea.
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The BIAS Implementation Plan describes a regional programme for monitoring underwater ambient noise in the Baltic Sea. The programme combined measurements and modelling and was successfully implemented in 2012-2016 within the EU LIFE+ project Baltic Sea Information on the Acoustic Soundscape (BIAS) by Sweden, Denmark, Germany, Poland, Estonia and Finland. In 2014, one year of sound measurements was performed at 36 locations with the purpose of establishing the baseline state of ambient noise levels in the Baltic Sea. The measurements, as well as the post-survey processing of the data, were subject to standardized field procedures, quality control and signal processing routines were all developed within BIAS. BIAS dealt exclusively with monitoring continuous low frequency sound as referred to by the Marine Strategy Framework Directive indicator 11.2.1. Therefore, the study focused on the 1/3 octave frequency bands of 63 and 125 Hz, as specified by the indicator, and a third frequency .....
PublisherSwedish Defence Research Agency (FOI)
Series;NrBIAS LIFE11 ENV/SE/;841
Sustainable Development Goals (SDG)14.1
Essential Ocean Variables (EOV)Ocean sound
Maturity LevelTRL 8 Actual system completed and "mission qualified" through test and demonstration in an operational environment (ground or space)
Best Practice TypeManual (incl. handbook, guide, cookbook etc)
Standard Operating Procedure
Spatial CoverageBaltic Sea
CitationNikolopoulos, A.; Sigray, P.; Andersson, M.; Carlström, J. and Lalander E. (2016) BIAS Implementation Plan - Monitoring and assessment guidance for continuous low frequency sound in the Baltic Sea, Swedish Defence Research Agency (FOI), 39pp, (BIAS LIFE11 ENV/SE/841) DOI: