EDS Newsletter #1

New Ocean Current Products: BlueLink v3.4 and Copernicus

RPS is pleased to announce the integration of two new global current datasets into its Environmental Data Services (EDS), now available to all our EDS subscribers. Please check out this article to know more about these two operational datasets as they provide great alternatives to improve your emergency response needs. You will also find the link to download the corresponding EDS Catalog Data Sheets.

In addition to the US based Global HYCOM, these two global ocean current products can now be used operationally in our MAP APP programs (SARMAP, OILMAP, CHEMMAP) and a variety of web-based platforms, and provide an additional reliable and accurate source of data for our EDS subscribers.

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This product will also be available for our in-house 24/7 emergency response modelling services. Both BlueLink v3.4 and Global Copernicus complement the existing range of local, regional, and global datasets available on the EDS system and will improve the development of reliable trajectory forecasts, particularly when applied as part of a consensus forecasting using the power of the EDS.

For further information about this, or any other data services provided by RPS, please contact us at EDSSupport@rpsgroup.com.

Global Copernicus

Under the EU Copernicus framework for European Earth observation program, the Copernicus Marine Environment Monitoring Service (CMEMS) made available its Global Copernicus Ocean Model, a global analysis and forecasting system that uses satellite and on-site observational data. It provides 10 days of global 3D ocean forecasts updated daily. This product includes hourly averaged surface fields for height, temperature, and sea level currents. Global ocean output files are displayed at a horizontal resolution of 1/12 degrees with regular longitude/latitude equirectangular projection. It also offers a special data set for surface current that includes derived waves and tides called SMOC (Surface and Merged Ocean Currents).

Before its global ocean product become available, we integrated in EDS the different regional CMEMS operational forecasting datasets for the Mediterranean Sea, the Iberia-Biscay-Irish area, the European Atlantic North West Shelf, the Baltic and the Black Seas. Some of these Copernicus Regional models are using the Nucleus for European Modelling of the Ocean (NEMO v3.6), driven by high frequency meteorological and oceanographic forcing, and bathymetry derived from the General Bathymetric Chart of the Oceans (GEBCO). All these models also include data of temperature, salinity, sea level and satellite data of sea level, and assimilating in situ and satellite data.

We also integrated in EDS the corresponding matching wind forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) – this dataset has currently a limited access. This global atmospheric model captures the dynamical evolution of the atmosphere for medium-range forecasts and is also coupled to the ECMWF Ocean Wave Model (ECWAM) and the NEMO model application. This coupling facilitates getting important feedback to the atmosphere and capturing the change of ocean state on a daily timescale.

Dataset Model Parameters

Adding new global data products in EDS means that any user can run multiple predictions cases using different metocean inputs. In order to help compare datasets, users can log into our EDS Viewer and check the spatial and temporal differences.

The following table and figures show an example of this comparison across these 3 global current models.

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Figure 1: Visual comparison of Copernicus Global (red vectors) and Global HYCOM (blue vectors) in European Waters.

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Figure 2: Visual comparison of Bluelink v3 (red vectors) and Global HYCOM (blue vectors) in Australian Waters.

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