spatiallyValid - AtlasOfLivingAustralia/ala-dataquality GitHub Wiki

Short description

An indication of whether a record is spatially valid or not.

Description

A single value statement on the spatial validity. Records that have failed 1 or more critical geospatial data quality tests have a value of false The following tests are applied to each record. If it fails any one of these, it's not considered to be spatially valid (spatiallyValid will be false).

  • Supplied coordinates are zero. If both the supplied latitude and longitude are zero, the record fails.
  • Country coordinate mismatch - The interpreted occurrence coordinates fall outside of the indicated country
  • Coordinate invalid - A coordinate value is given in some form, but we are unable to interpret it. This can occur when text values we are unable to interpret are provided.
  • Coordinate out of range - The supplied coordinates lie outside of the range for decimal latitude/longitude values (-90⁄90, -180⁄180).

These tests rely on the record having some sort of coordinate location - a latitude and longitude or a grid reference - something that would allow you to find the record on a map. If a record doesn't have any coordinate-based location, then the record is considered not spatially valid. Examples include where the location is just a town name, there is only a text description of the location, or the record is actually a drawing showing the characteristics of a species and doesn't have any location information.

For more information about the spatial validity test and how this changed in 2021, please see our article: https://support.ala.org.au/en/support/solutions/articles/6000249565-spatially-valid-flag

Relevant Standards

Expert vocabulary

ALA usage

Values are:

  • Spatially valid (true)
  • Spatially suspect (false)

Replaces

geospatial_kosher

Technical description, provenance, code