Abstract

The KNMI'23 climate scenarios are based on 240 years (8 ensembles of 30 years each) of RACMO (Regional Atmospheric Climate Model) v2.3 data for every horizon/scenario. The data in this set is a user-friendly version of the RACMO putput that was used to calculate the scenario tables. ‘User-friendly’ means that the data is mapped to a regular lat/lon grid, and that the time coordinate corresponds to the nominal period it is used for.

Version 1.0 (https://dataplatform.knmi.nl/dataset/knmi23-user-friendly-racmo-1-0) of the dataset only includes values within the Dutch borders. Version 2.0 also includes values outside the borders. In addition, this version also includes a mask to mask the points outside the Netherlands. This user-friendly dataset is also provided to the public via the data portal. The current version (3.0) is the same as version 2.0 but has four extra variables: psl (sea level pressure), tsfcwindmax (daily maximum wind speed), uas (daily mean zonal wind speed), vas (daily mean meridional wind speed). These variables are not bias-corrected because the necessary observational data are not available. Users should be aware of this difference.

Supplemental information

Additional information can be found in the KNMI’23 user report (https://cdn.knmi.nl/system/data_center_publications/files/000/071/901/original/KNMI23_klimaatscenarios_gebruikersrapport_23-03.pdf) as well as on the data portal (https://klimaatscenarios-data.knmi.nl/). Please note that the extra variables (psl, sfcwindmax, uas, vas) are not available on the data portal as they are not bias-corrected.


Metadata

Dataset name knmi23_user_friendly_racmo
Dataset version 3.0
Status completed
Last metadata update April 30, 2025, 13:08 (UTC)
Update frequency notPlanned
License https://creativecommons.org/licenses/by/4.0/
North bound latitude 53.7
East bound longitude 2.9
South bound latitude 50.6
West bound longitude 7.4
Dataset edition 1
Dataset manager Andreas Sterl
Maintainer KNMI Data Services
Publication timestamp 2025-04-30T00:00:00Z
Reference system identifier EPSG4326
Dataset start time 1991-01-01
Dataset end time 2165-12-31
Identifier urn:xkdc:ds:nl.knmi::knmi23_user_friendly_racmo/3.0/
Lineage statement RACMO v2.3 output, bias-corrected and mapped to a regular geographical lat/lon grid
Purpose Publication of data underlying the KNMI’23 scenarios
Use limitation No use limitations
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