Precipitation - radar/gauge 5 minute real-time accumulations over the Netherlands

Gridded files of radar-derived 5 minute precipitation accumulations, corrected by rain gauge data. Radar data over the Netherlands and surrounding area measured by Dutch, Belgian, and German radars are corrected by available data from automatic rain gauges. Time interval is 5 minutes. See data set nl_rdr_data_rtcor_5m_tar/1.0 for an archive that goes back to 2018. Starting with data from 31 January 2023 - 10.45 UTC onwards, this dataset is created using improved algorithms. This includes correction for signal attenuation, correction for vertical variation of precipitation, correction for fast-moving showers and use of uncertainty information in merging data from multiple radars.

Data and Resources

Additional Info

Field Value
Last Updated September 4, 2023, 15:46 (UTC)
Created September 4, 2023, 15:46 (UTC)
GUID 4804f9c2-46da-4007-9408-dc22788592eb
access_constraints ["https://creativecommons.org/publicdomain/zero/1.0/deed.nl"]
bbox-east-long 10.86
bbox-north-lat 55.97
bbox-south-lat 48.9
bbox-west-long 0.0
contact-email opendata@knmi.nl
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2018-12-06"}]
frequency-of-update continual
licence ["No use limitations"]
lineage Radar reflectivities are measured by radars in the Netherlands, Belgium, and Germany. Single images per radar at 1500 m height are generated by linearly interpolating radar reflectivities in altitude. Radar reflectivities are then converted to rainfall intensities by using the Z=200R^1.6 formula. A mean bias correction factor is derived based on the most recent 1 hour rainfall accumulations from automatic rain gauges. The resulting radar rainfall estimates from all radars are then combined to a single product by taking a weighted average. The weigths are a function of the distance of a given point to the radar.
metadata-date 2019-10-28
metadata-language eng
progress onGoing
resource-type dataset
responsible-party [{"name": "Koninklijk Nederlands Meteorologisch Instituut (KNMI)", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[0.0, 48.9], [10.86, 48.9], [10.86, 55.97], [0.0, 55.97], [0.0, 48.9]]]}
spatial-data-service-type
spatial-reference-system http://www.opengis.net/def/crs/PROJ.4/0/+proj=stere +lat_0=90 +lon_0=0 +lat_ts=60 +a=6378.14 +b=6356.75 +x_0=0 y_0=0
spatial_harvester true
temporal-extent-begin 2018-12-07
temporal-extent-end 9999-12-31