The contents of the Rivermap Collaborative Database (RCD) are:

• The geographical coordinates of the start and end of river sections.
• The following attributes of river sections: river name, section name, grade of difficulty, identification of reference gauges and any associated calibration values.

In 2018 we had records and memory of more than 70 people who have contributed substantially and directly to the combined work of the RCD. Certainly many more have made minor or indirect contributions.

If you would like your contribution to be publicly acknowledged here, please contact us.

The author of the RCD is “Rivermap”.

Irrevocable public licences are granted to the RCD.

The motivations for these public licences are:

• To make the combined work of the contributors more valuable by explicitly allowing it to be used outside the project.
• To protect the contributors from future loss of access to their combined work.

Links to the public licences and to the corresponding extracts are here.

Because:

• We haven't thought it all through yet. This project is, above all, a hobby.
• Some of the data is clearly not ours to licence. In particular, the details of gauges and the gauge readings belong to the publishing data sources.

As author, Rivermap has the right and reserves the right to modify the licenses that apply to all or part of the RCD, without notice nor compensation. We may, for example, chose to modify the CC-BY-SA licence to the compatible, but more relaxed, CC-BY licence.

As author, Rivermap has the right and reserves the right to grant new licenses, public or private, that apply to all or part of the RCD, without notice nor compensation. We may, for example, chose to make a public subset available under ODbL.

Rivermap cannot be held responsible under any circumstances of the possible consequences of such modifications and additions to licences.

In early 2018 the project team voted in favour of a proposal to publish part of the RCD under a Creative Commons Licence. At that time we contacted as many known contributors as possible for permission. To avoid having to repeat this time-consuming manual exercise for any future licence initiatives, the project now claims the rights described on this page. If you were a contributor before 2018 who agreed to the CC-BY-SA 4.0 licence but who does not agree to these more general terms, please contact us.