Precipitation - radar/gauge 24 hour accumulations over the Netherlands

Gridded files of radar-derived 24 hour precipitation accumulations, corrected by rain gauge data. Radar data from 1500 m over the Netherlands and surrounding area measured are corrected by data from KNMI's 325 manual rain gauges. Time interval is 1 day, from 8 to 8 UTC. KNMI has detected measurement anomalies caused by a defect in some rain gauges for manual precipitation observation. It concerns data from the second half of 2012 until present. At this moment KNMI is assessing the extent of the problem and investigates the options to repair the defect as soon as possible. For more information use the KNMI contact form (www.knmi.nl/contact).

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This dataset is also available with a SLA (Service Level Agreement), which means that agreements can be made about extra services that KNMI offers. This includes increased availability and technical support. More information about a SLA for this data can be found on the Data Services product page.

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The dataset can be downloaded via an API, more about this on the Developer Portal. Use the following API endpoint for access to this dataset: https://api.dataplatform.knmi.nl/open-data/v1/datasets/radar_corr_accum_24h/versions/1.0/files

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Data and Resources

Additional Info

Field Value
Author Hidde Leijnse
Maintainer KNMI Data Services
Version 1.0
Last Updated September 13, 2021, 09:35 (UTC)
Created September 13, 2021, 09:35 (UTC)
Dataset name radar_corr_accum_24h
Dataset version 1.0
East bound longitude 10.86
File identifier 296c9ee3-65e8-411b-875d-b094aba04364
From 2008-01-01T00:00:00
Identifier urn:xkdc:ds:nl.knmi::radar_corr_accum_24h/1.0/
License https://creativecommons.org/publicdomain/zero/1.0/
Linage statement Radar reflectivities are measured by both radars (De Bilt at 52.1017 N, 5.1783 E and Den Helder at 52.9533 N, 4.7900 E) in scans with elevation angles of 0.3, 1.1, 2.0, and 3.0 degrees. These scans are used to generate a single image per radar at 1500 m by linearly interpolating radar reflectivities in altitude. Radar reflectivities are then converted to rainfall intensities by using the Z=200R^1.6 formula, and these rainfall intensities are accumulated to 24 hour sums, from 8 to 8 UTC. The entire rainfall product is then corrected using the KNMI network of manual gauges.
North bound latitude 55.97
Publication timestamp 2014-12-01T09:16:16
Reference system identifier PROJ.4+proj=stere +lat_0=90 +lon_0=0 +lat_ts=60 +a=6378.14 +b=6356.75 +x_0=0 y_0=0
South bound latitude 48.9
Status onGoing
Until Unlimited
Update frequency asNeeded
Use limitation none
West bound longitude 0.0