New mapping for m01s03i366

[jonseddon]

I propose these changes to Metarelate's metOcean knowledge base.
The changes are correct, to the best of my knowledge.
I agree to my username being used to label these changes.
https://www.metarelate.net/metOcean/controlpanel/?branch=32b759392b814947019a8878a257727bd6d64a8c%2F

[jonseddon]

@marqh just checking on the status of this mapping request.

Thanks,

Jon

[jonseddon]

@marqh, this is just a gentle prod that this mapping request is still outstanding.

[marqh]

merged and adopted with thanks

pushed to Iris in
SciTools/iris#3011