Abstract

This dataset contains HARMONIE information in gridded form. The P1 package contains the meteorological parameters for the Netherlands and its direct surroundings, at approximately the resolution of the original grid, but reprojected to a regular lat-lon grid of 0.018° in the North-South direction and 0.029° in the West-East direction. All parameters are on height levels at or close to the surface or in the bottom 300 metres of the atmosphere. For this weather forecast model, KNMI works closely with Iceland, Denmark and Ireland on local short-term weather forecasts under the name "United Weather Centres-West" (UWC-West). An international project team is working on a joint Numerical Weather Prediction model (NWP), procurement and management of the HPC (supercomputer) and infrastructure. The output frequency is 1 hour, the forecast horizon is 60 hours.

Data quality notice

HARMONIE cycle 46 is still in the experimental (test) phase. The dataset therefore may be incomplete at first.


Metadata

Dataset name harmonie_arome_cy46_p1
Dataset version 1.0
Status onGoing
Update frequency continual
File formats GRIB
Spatial representation type grid
License https://creativecommons.org/licenses/by/4.0/
North bound latitude 56.002
East bound longitude 49
South bound latitude 11.281
West bound longitude 0
Dataset edition 1.0
Dataset manager Team WIK
Maintainer KNMI Data Services
Publication date 2026-08-03
Reference system identifier EPSG4326
Dataset start time 2026-08-03
Dataset end time 9999-12-31
Identifier urn:xkdc:ds:nl.knmi::harmonie_arome_cy46_p1/1.0/
Lineage statement Bi-linear interpolation from lambert to regular lat-lon
Use limitation No use limitations
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