Precipitation - radar 5 minute forecasted radar reflectivity composites over the Netherlands up to 2 hours ahead

Forecasts of radar reflectivities at 1500 m over the Netherlands and surrounding area measured by two radars in De Bilt and Den Helder. Forecast interval is 5 minutes, with lead times up to 2 hours.Files in this data set are for the previous 24 hours.

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Data and Resources

Additional Info

Field Value
Author Hidde Leijnse
Maintainer KNMI Data Services
Version 1.0
Last Updated June 8, 2021, 09:46 (UTC)
Created June 8, 2021, 09:46 (UTC)
Dataset name radar_forecast
Dataset version 1.0
East bound longitude 10.86
File identifier 0bf067dd-9928-4d02-929e-3632b3f93363
From 2008-01-01T00:00:00
Identifier urn:xkdc:ds:nl.knmi::radar_forecast/1.0/
License https://creativecommons.org/publicdomain/zero/1.0/deed.en
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. 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. Radar reflectivity fields are forecast by extrapolating the current radar field using advection velocitite derived from previous radar reflectivity fields.
North bound latitude 55.97
Publication timestamp 2014-12-01T16:01:32
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