Precipitation - radar 5 minute reflectivity composites over the Netherlands

Gridded files of radar reflectivities at 1500 m over the Netherlands and surrounding area measured by two radars in Herwijnen and Den Helder. Time interval is 5 minutes. Files in this data set are for the previous 24 hours. See data set radar_corr_refl_composites/1.0 for an archive.

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Data and Resources

Additional Info

Field Value
Author Hidde Leijnse
Maintainer KNMI Data Services
Version 2.0
Last Updated July 29, 2021, 11:16 (UTC)
Created July 29, 2021, 11:16 (UTC)
Dataset name radar_reflectivity_composites
Dataset version 2.0
East bound longitude 10.86
File identifier e9816766-2939-4687-8023-5c3f4cf50491
From 2008-01-01T00:00:00
Identifier urn:xkdc:ds:nl.knmi::radar_reflectivity_composites/2.0/
Linage statement Radar reflectivities are measured by both radars (Herwijnen at 51.8369 N, 5.1381 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. These two radar images are then combined to a single image by taking a weighted average of the radar reflectivities. The weigths are a function of the distance of a given point to the radar. The time stamp in the file name corresponds to the start time of the lowest radar scan.
North bound latitude 55.97
Publication timestamp 2015-07-14T11:10:12
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