Integration of CMEMS information in the OCEBIS service

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OCEBIS constitutes an operational downstream service, i.e. provides continuous real-time updates of the ocean state, based upstream data from selected oceanographic data sets from the Copernicus Marine Service. At hourly basis OCEBIS automatically will download selected data sets when new data sets are posted on MFCs (Monitoring Forecasting Centers) servers of the Copernicus Marine Service service. The OCEBIS server postprocess these data downloaded from the Copernicus Marine Service and repost data maps of relevant bottom-up ecosystem drivers on the OCEBIS server, based on downloaded oceanographic data sets. Thereby Copernicus Marine Service data sets are given new value of a wider user community of marine stakeholders.

Usefulness of CMEMS information

OCEBIS utilizes data posted by Copernicus Marine Service at maximum spatial and temporal resolution. The accessible spatial and temporal resolution is sufficient for many biological purposes, but in some cases higher resolution may be needed. One such case is very close to the coast line; many numerical hydrodynamical models apply a pixellated coast line, where the coast line is represented by small zonal and meridional segments. Further small scale hydrodynamic processes are truncated by the numerical scale close to the coast line. Therefore particular attention is needed when using data within the numerical scale of the coast line or close to the model domain boundary, where artificial boundary effects may come in play. Vertically data on OCEBIS also rely on the underlying numerical topography of hydrodynamic models applied, as inferred from the raw data sets retrieved from Copernicus Marine Service. Data from the Copernicus Marine Service is easily retrieved to OCEBIS by automated python scripts (based on motu-client) and data quality was well-documented and accessible. Retrieved data is in COARDS compliant format and same processing procedures can be applied across data sets, without format conversion.

Credits

Data provides by the OCEBIS service has been generated using E.U. Copernicus Marine Service Information; development of the OCEBIS service infrastructure has kindly been supported under Copernicus User Uptake programme.