Test mapping of measurements that currently have no data

[peterdesmet]

The following measurements are mapped, but could not be tested because currently none of the ESAS data is using these:

sample: PlatformHeight

• measurementTypeID: none Not http://vocab.nerc.ac.uk/collection/P01/current/AHSLZZ01/ which is the height above sea level of the observation (not observer)
• measurementValueID: none
• measurementUnitID: http://vocab.nerc.ac.uk/collection/P06/current/ULAA/
• Include example in README

pos: SunAngle

• measurementTypeID: none Few terms related to sun in P01, but not sun angle. Not in ESAS either.
• measurementValueID: none
• measurementUnitID: http://vocab.nerc.ac.uk/collection/P06/current/UAAA/
• Include example in README

pos: CloudCover

• measurementTypeID: http://vocab.nerc.ac.uk/collection/P02/current/CHEX/ See P01 term for cloud cover #21
• measurementValueID: https://vocab.ices.dk/services/rdf/collection/CloudCover/2
• measurementUnitID: http://vocab.nerc.ac.uk/collection/P06/current/UUUU/ Cf. beaufort, I would go for dimensionless rather than not applicable for octas
• Include example in README

pos: ObservationConditions

• measurementTypeID: https://vocab.ices.dk/services/rdf/collection/Sightability Not in P01
• measurementValueID: https://vocab.ices.dk/services/rdf/collection/Sightability/G
• measurementUnitID: http://vocab.nerc.ac.uk/collection/P06/current/XXXX/
• Include example in README