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Invergordon PAM Mitigation

Posted on March 16, 2016

Case Study – Invergordon PAM Mitigation

Background:

Compliance – Real-time mitigation – Cromarty Firth – Queens Dock extension

Client: Cromarty Firth Port Authority, United Kingdom


Context: SMRU Consulting Europe, in partnership with SA Instrumentation Ltd provided underwater noise and marine mammal monitoring and mitigation at the site of the Queens Dock expansion, near Invergordon, Scotland.

The purpose of this project was to provide the client with real-time Passive Acoustic Monitoring (PAM) mitigation for harbour porpoises and bottlenose dolphins. Specifically, the regulator determined the requirement for monitoring of underwater noise levels and the presence of cetaceans whilst construction activities were underway (due to the protected state of the cetacean populations in the region). Standard visual MMO mitigation was considered challenging in this area due to the proposed 24/7 operations, autumn/winter daylight conditions at high latitudes and limited weather windows (i.e. sea state, fog, rain/snow, etc.). Therefore, here the combination of visual and acoustic methods was critical to the marine works being completed efficiently. The importance of reliable, proven PAM systems here was greater than in other locations and situations.

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Invergordon Buoy.jpg


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