EURADCLIM: The European climatological gauge-adjusted radar precipitation dataset (1-h accumulations)

The European climatological gauge-adjusted radar precipitation dataset, EURADCLIM, addresses the need for an accurate (sub-)daily precipitation product covering 8000000 square kilometers of Europe at high spatial resolution. It consists of 1-h and 24-h precipitation accumulations (every clock-hour) at a 2-km grid for the period 2013 through 2022. It is based on the European Meteorological Network (EUMETNET) Operational Program on the Exchange of weather RAdar Information (OPERA) gridded radar dataset of 15-min instantaneous surface rain rates. For EURADCLIM, first methods have been applied to further remove non-meteorological echoes from these images by applying two statistical methods and a satellite-based cloud type mask. Second, the radar composites are merged with the rain gauge data from the European Climate Assessment & Dataset (ECA&D) in order to substantially improve its quality. We expect to rerun EURADCLIM once a year over the entire period, using all available ECA&D rain gauge data, and extend it with one year of data. This will result in a new version of this dataset. Project EURADCLIM was financed by KNMI’s multi-annual strategic research programme (project number 2017.02). The EURADCLIM dataset is based on the OPERA surface radar rain rate and daily precipitation sums of the rain gauge networks provided by the European national weather services and other data holding institutes, through ECA&D.



With respect to version 1, the changes include slightly improved removal of non-meteorological echoes, somewhat better rain gauge coverage over the years 2013 to 2020, and years 2021 and 2022 have been added to the dataset.



Usage: For each month a zip file is provided. The data are in UTC, where the time in the unzipped filenames is the end time of observation in UTC. Object "dataset1/data1" contains the 1-h precipitation accumulation in millimeters. For each grid cell, the availability for 1-h accumulations data is either no data or full availability, and can be determined from "dataset1/data1" through the "nodata" value (-9999000.0).

Simple

Date (Publication)
2024-07-02
Edition

2.0
Citation identifier
urn:xkdc:ds:nl.knmi::RAD_OPERA_HOURLY_RAINFALL_ACCUMULATION_EURADCLIM/2.0/
Status
Completed
Point of contact
Organisation name Individual name Electronic mail address Role

Koninklijk Nederlands Meteorologisch Instituut (KNMI)

opendata@knmi.nl

Point of contact
Maintenance and update frequency
Annually

DG Discovery Properties Vocabulary 1.0

  • Precipitation

  • Rain

  • Radar

  • Climate

  • ECA&D

  • Gauge
Keywords

  • Open data
Use limitation

No use limitations
Access constraints
Other restrictions
Other constraints

https://creativecommons.org/licenses/by/4.0/deed.nl

Classification
Unclassified
Spatial representation type
Grid
Language
English
Character set
UTF8
Topic category
  • Climatology, meteorology, atmosphere
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Begin date
2013-01-01
End date
2022-12-31
Supplemental Information

Data description paper: https://doi.org/10.5194/essd-15-1441-2023

Reference system identifier
http://www.opengis.net/def/crs/EPSG/0/4326
Distribution format
Name Version

HDF5

2.0
Distributor contact
Organisation name Individual name Electronic mail address Role

Koninklijk Nederlands Meteorologisch Instituut (KNMI)

opendata@knmi.nl

Point of contact
Transfer size
2600
OnLine resource
Protocol Linkage Name

landingpage

 		https://dataplatform.knmi.nl/catalog/datasets/index.html?x-dataset=RAD_OPERA_HOURLY_RAINFALL_ACCUMULATION_EURADCLIM&x-dataset-version=2.0

KNMI Data Platform
Hierarchy level
Dataset
Statement

OPERA surface radar rain rate + ECA&D rain gauge data

Metadata

File identifier
25fbf4ca-3558-11ef-89aa-a6e0a5ab8630 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2025-06-02T12:16:48.553Z
Metadata standard name

ISO 19115
Metadata standard version

ISO 19115:2003 NL Kernset 1.3 KNMI 2.1.0
Metadata author
Organisation name Individual name Electronic mail address Role

Koninklijk Nederlands Meteorologisch Instituut (KNMI)

opendata@knmi.nl

Point of contact
Other language
Language Character encoding
Dutch; Flemish
English UTF8
 
 

Overviews

Spatial extent

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Keywords



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