Cf conventions deployment position

[fmanzano-pde]

See issue #428 for discussion of these changes.

It is quite common that the deployment position of a station changes after maintenance or repositioning after it drifts. Example H.5. "A single timeseries with time-varying deviations from a nominal point spatial location" has been extended to show how these deployments can be encoded in CF. Lossless compression by gathering is applied to the deployment coordinate variables, which otherwise would contain a lot of missing or repetitive data.

• Appendix H has been modified to extend Example H.5
• Section 5 and conformance modified to add a new exception to consider also dimensions in the compress attribute of the auxiliary coordinate.
• Section 8.2 modified to add more information and reference Example H.5
• Section 9 updated to correct a reference to Example H.5

Release checklist

• Authors updated in cf-conventions.adoc?
• Next version in cf-conventions.adoc up to date? Versioning inspired by SemVer.
• history.adoc up to date?
• Conformance document up-to-date?

For maintainers

After the merge remember to delete the source branch.
Tags are set at the conclusion of the annual meeting; until then master always is a draft for the next version.

[JonathanGregory]

That looks fine to me, thanks.

[JonathanGregory]

I resolved the conflict in history.adoc, where this change and another competed for the top spot.