Harmonie Cy43 Datasets Now Complete
Following the announcement in March that the first datasets of the new Harmonie model are available on the KNMI Data Platform (KDP), we can now confirm that the full set of Harmonie Cy43 datasets is available. These include not only technical improvements but also meteorological enhancements that will impact your analyses and forecasts. For more information, see the March newsletter.
Overview of available products
| Product | Section | Run | Max. vertical hight |
Parameters |
|---|---|---|---|---|
| Harmonie Cy43 P1 | Netherlands | Deterministic | 300 | Meteorological |
| Harmonie Cy43 P2a | Netherlands | Ensemble | 10 | Meteorological |
| Harmonie Cy43 P2b | Netherlands | Ensemble | 300 | Renewable energy |
| Harmonie Cy43 P3 | Europe | Deterministic | 300 | Meteorological |
| Harmonie Cy43 P4a | Europe | Ensemble | 10 | Meteorological |
| Harmonie Cy43 P4b | Europa | Ensemble | 300 | Renewable energy |
| Harmonie Cy43 P5 | Europe | Deterministic | 550 | Selected |
The combined Harmonie Cy43 for the Caribbean region (BESS, BOV, BEN) is currently under development. Efforts are ongoing to make this available soon.
Timeline and future updates
The preliminary timeline for the transition to the new Harmonie services is known. From June 18, all Harmonie services, including KDP, will be based on the machines in Iceland. This means that the same services you are accustomed to with Harmonie Cy40 will now apply to Cy43. This also means that from June 18, the Harmonie Cy40 runs will no longer be produced in De Bilt. Depending on weather conditions, this transition may be delayed by a few days.
There will be an alternative Harmonie Cy40 deterministic run, named HA40_Alt, running on the machine in Iceland. This is a solution to allow more time for the transition to Cy43. This applies exclusively to the HA40 deterministic products; Product 1, 3, and 5. On the 18th of June, HA40_ALT will be integrated with the current Harmonie Cy40. We emphasize that this is a temporary solution. Therefore, we strongly urge you to transition to the Harmonie Cy43 products.
We understand that the transition may be complex. We remain committed to making this transition as smooth as possible and appreciate your patience and understanding.