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HISPID Terms
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Additional georeferencing fields #29

Closed nielsklazenga closed 8 years ago

nielsklazenga commented 9 years ago

Darwin Core has a very strong emphasis on the geo-reference, probably because the geo-reference provides access to a lot of other information. There are several Darwin Core georeferencing fields available that are not generally delivered by herbaria, but would be relatively painless to provide and add extra value. georeferenceSources, georeferenceRemarks and georeferenceVerificationStatus are already in ABCD 2.06b and HISPID 5. The others, georeferencedBy (#13), georeferencedDate, verbatimSRS, verbatimCoordinateSystem and coordinatePrecision can be hung off the Unit Extension (if you want to use ABCD).

The last element, coordinatePrecision, is important, especially if georeferences have to be transformed from one spatial reference system to another. Latitudes and longitudes should always be delivered with at least five decimals, no matter their precision, so that also after transformation the values are not truncated. The coordinatePrecision (in degrees) should indicate the precision of the coordinates, not the number of decimals in the coordinates themselves. Coordinate precision is derived pretty straightforwardly from the verbatim lats and longs (if they are stored in the database; in older versions of HISPID they are). Coordinate precision has got nothing to do with coordinate uncertainty.

nielsklazenga commented 9 years ago

These fields have been added.

nielsklazenga commented 8 years ago

This was my issue and I am happy, so closing this...