The transition from Harmonie 43 to Harmonie 46 is currently in the testing phase. Following the earlier sharing of a few individual test files, the next step has now been taken: the first test data stream has been added to the KNMI Data Platform. From now on, the P1 package of Harmonie 46 can be found here, with new files added every hour.
In the coming period, these data streams will be made available for the different Harmonie 46 packages as well.
Harmonie 46 P1 documentation
For documentation on Harmonie 46, including the differences with Harmonie 43, an explanation of the GRIB2 format, and an overview of the variables, please visit the technical documentation tab on the dataset page.
Support is available
You can use this test data stream to prepare your systems for the new model output and to test technical connections; any findings can be shared with us. During this phase, KNMI offers support for questions about the data, data formats, and implementation. You can contact your account manager, or alternatively reach us via opendata@knmi.nl or the KDP Community Slack.