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Marine Noise Registry Service

Defra and JNCC have developed the Marine Noise Registry (MNR) to record human activities in UK seas that produce loud, low to medium frequency (10Hz – 10kHz) impulsive noise. Developing the MNR was a commitment made in the UK Marine Strategy.

Activities include;

Data input to the MNR is via completion of 2 simple forms, the first a proposed activity form (detailing the planned activity) and second a close-out report (an accurate account of where and when the activity had occurred). Data specifics include location, dates and source property data; frequency, maximum airgun volume, maximum hammer energy, TNT equivalent, sound pressure level and sound exposure level.

The initial purpose of monitoring man-made impulsive noise is to quantify the pressure on the environment by making available an overview of relevant impulsive sound sources, throughout the year. This in turn will aid in the definition of a baseline level for impulsive noise in UK waters.

The MNR is used for data input only. For outputs from the MNR, JNCC will publish maps annually presenting the spread of activities across UK seas. Maps will be made available from: Data contained within the MNR is available upon request from JNCC.

Select Start Now to enter the MNR and begin submission of activity data.

Start now

Guidance is available via the help link at the bottom of each page.

For more information about the MNR please visit the JNCC MNR webpage or email