Data quality issues and flags

Oveview

The GBIF network publishes datasets, integrating them into a common access system. Here, users can retrieve data through common search and download services. During the indexation process over the raw data, GBIF adds issues and flags to records with common data quality problems. These may contain useful information for you as a user to create fit-for-purpose datasets.

workflow2

Remarks are shown on the individual occurrence pages to explain the process done after interpretation:

  • Excluded means the original data couldn’t be interpreted, so it is excluded in the interpreted fields.

  • Altered means the original data is modified in the interpretation process to be indexed in GBIF.org.

  • Inferred means if the original is empty, the data is inferred using other indexed record information.

Excluding all records with a particular issue is not currently possible with the search interface. It is possible to filter all records you are not interested in with issues by selecting the particular issue and hitting the reverse button. However, reversing will still only give you all other flagged occurrences and not issue-free records. This is something that GBIF is working to improve.

filtering

Issues and flags documentation

A full overview of all issues and flags is found within GBIF Technical Documentation: