Abstract

Cloud-free and cloud-modified UV index data for an area covering the Benelux for each 10 minutes from 03:00 UTC up to and including 21:30 UTC, both in the non-dimensional unit, and given with 3 decimals. The UV index makes use of total ozone column data as well as the surface height and the amount of aerosols in the atmosphere. This dataset is used to warn the public about the risk of sunburn.

Supplemental information

For more information on the dataset and more UV-related data, see: https://www.temis.nl/uvradiation/UVarchive/uviec.php

Data quality notice

For 10 minutes with insufficient sunlight to determine the UV index or when cloud cover data is missing, the entries use fill-values (-1.0).


Metadata

Dataset name cloud_modified_UV_index_benelux
Dataset version 2.0
Status onGoing
Update frequency continual
File formats NetCDF
Spatial representation type grid
License https://creativecommons.org/licenses/by/4.0/
North bound latitude 54.0
East bound longitude 7.75
South bound latitude 49.25
West bound longitude 2.25
Dataset edition v2.2
Dataset manager Jos van Geffen
Maintainer KNMI Data Services
Publication date 2026-09-25
Reference system identifier EPSG4326
Dataset start time 2026-09-25
Dataset end time 9999-12-31
Identifier urn:xkdc:ds:nl.knmi::cloud_modified_UV_index_benelux/2.0/
Lineage statement TM3-DAM, version 4.4 & temisuv, version 2.2
Purpose The UV index is an important piece of information for warning the public about the risk of sunburn. KNMI produces such data based on satellite observations of the thickness of the ozone layer and cloudiness derived from measurements by the Meteosat Third Generation (MTG) satellites. Dutch RIVM (National Institute for Public Health and the Environment) and Belgian KMI (Royal Meteorological Institute) have asked to make that data public so that they can use it for their warnings and to build a service on that data.
Use limitation No use limitations
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