New report published highlighting the value of seabed mapping
Source: gov.uk (2025-01-30)

A new report reveals the significant economic and environmental benefit of seabed mapping within the UK Exclusive Economic Zone (EEZ).

The report, developed by Eunomia Research & Consulting (Eunomia) defines the cost benefit relationship of seabed mapping to the UK economy. It highlights the potential benefits of seabed mapping in environmental conservation, compliance with legislation, and in varying maritime sectors like shipping, offshore energy, and coastal leisure.

The report estimates that the average total benefits of seabed mapping in the UK EEZ is around £8.9 billion, compared to an estimated annual investment of £103 million each year. This represents a remarkable average estimate of cost benefit ratio of £86 benefit for every £1 spent.

The majority of the value derived from seabed mapping efforts are from market sectors such as offshore energy and shipping, trades, and ports, with the remainder stemming from non-market sectors, such as environmental protection and legislative compliance.

The importance of seabed mapping

Seabed mapping has the potential to drive growth and innovation across a range of maritime sectors by improving navigational safety, supporting job creation and facilitating economic development.

This data is critical to a range of maritime sectors and their associated value. For example, accurate seabed mapping is essential for the development of navigational charts to enable the safe passage of vessels and support maritime trade. Elsewhere, such data is critical for sectors like offshore energy, fishing and aquaculture, defence, and telecommunications, by identifying and surveying suitable sites for development.

Beyond market applications, seabed mapping also contributes to environmental protection and marine resource management. This data helps establish conservation areas to protect marine habitats, while also monitoring levels of erosion and seabed landslides. In tandem, it plays a vital role in helping the UK government to comply with various regulations and legislations.

Thanks to collective initiatives such as the UK Centre for Seabed Mapping (https://www.admiralty.co.uk/uk-centre-for-seabed-mapping) (UK CSM), the UK has a coordinated approach to the collection and management of bathymetric and marine data. However, advancements in seabed mapping technologies in recent decades have allowed for a more comprehensive and up-to-date understanding of the seafloor.

Foundation data for maritime decisions

With the maritime industry making up a vital part of the UK’s national infrastructure, the UKHO commissioned this project with the goal of improving the quality, access and coverage of seabed mapping data across the UK EEZ. This aligns with the UKHO’s goal to support maritime decision making and the safe passage of vessels at sea.

David Parker, Head of Hydrographic Programmes, commented:

Mapping the seabed isn’t just about uncovering what lies beneath our ocean’s surface – it is a foundation data set for supporting economic growth, protecting our vital ecosystems, and steering the maritime industry towards a safer, more sustainable future.

We hope the findings of this report demonstrate the tangible value in having comprehensive, accurate mapping of the seabed for the many organisations in the UK that collect this data and rely upon it for responsible decision making.

You can download and view the report using the link below:

Cost Benefit Analysis of Seabed Mapping (https://assets.publishing.service.gov.uk/media/679a162ddc6d75ae3ddc7b60/UK_Seabed_Mapping_CBA_Final_Report_V5.1.pdf) (PDF, 992 KB, 51 pages)