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For information on frequently asked questions about the Marine Data Exchange, please read on. If you can't find the question or answer you're looking for, please Contact Us.

What is the Marine Data Exchange? show/hide

The Marine Data Exchange is where you can access data collected during the planning, building and operating of offshore renewable energy projects. It also incorporates all of the data that was submitted to the COWRIE (Collaborative Offshore Wind Research Into the Environment) database, which this system replaces.

Why does The Crown Estate collect these data? show/hide
  • to safeguard retention of data and information for industry and future research;
  • to ensure that the best available evidence is available for sustainable decision making;
  • to provide developers with access to data and information that enhances development opportunities;
  • to work with developers to provide stewardship regarding best practice data management;
  • to provide information to aid The Crown Estate, industry and public understanding of the marine estate;
  • to facilitate collaboration and research for the benefit of the industries concerned;
  • to provide support for development programmes in the event of future development opportunities;
Do I need to register? show/hide

You do not need to register to use the Marine Data Exchange. The site has been designed to be open to all. However, registering for the site will allow access to some additional functions, including saving searches for future visits, posting on the Exchange Board, and providing comments on the resources you have viewed.

Is there a cost to download from the Marine Data Exchange? show/hide

There is no cost. Downloading datasets and reports from the MDE Data Catalogue is free.

What do I do if I want to download a file that is too large and the system crashes when I try? show/hide

You should receive an email with the links to the files you requested. Use these links to try again. If you didn't receive the email or trying again doesn't resolve the issue, then please email us: mde@thecrownestate.co.uk

What is a Series? show/hide

A Series is analogous to a MEDIN Series which can be defined as a collection of datasets and reports collected in relation to a survey or data collection campaign, linked by a common research question.

What is a Dataset? show/hide

A dataset is a 'pillar' of data and information related to a single parameter (something measured), instrument (technology used to measure) or method (way of measuring something).

What is a Report? show/hide

A Report is a set of documents relating to part, or the whole of a survey or data collection campaign.

Can I use advanced search queries? show/hide

Yes. You can use wildcards, logical operators and quotation marks.

To use wildcards, simply include a "*" before or after your desired search term


Note: you cannot use wildcards within quotation marks.

To use logical operators, simply use them in capital letters.

birds AND mammals
birds OR mammals

Include quotation marks around your search terms whenever they're formed by more than a word.

"marine mammals"
birds AND "marine mammals"