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. See data set radar_tar_refl_composites/1.0 for an archive that goes back to 2008.

Data and Resources

Additional Info

Field Value
Last Updated September 4, 2023, 15:06 (UTC)
Created September 4, 2023, 15:06 (UTC)
GUID e9816766-2939-4687-8023-5c3f4cf50491
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": "2015-07-14"}]
frequency-of-update continual
licence ["No use limitations"]
lineage 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.
metadata-date 2019-05-06
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 2008-01-01
temporal-extent-end 9999-12-31