Abstract

Archive of gridded files of radar echo top heights over the Netherlands and surrounding area. Based on 15 radar scans by two radars in Herwijnen and Den Helder. Time interval is 5 minutes. Data have been archived in one .tar file per day.


Metadata

Dataset name radar_tar_echotopheight_5min
Status onGoing
Last metadata update April 6, 2022, 13:04 (UTC)
Update frequency daily
License https://creativecommons.org/publicdomain/zero/1.0/
North bound latitude 55.97
East bound longitude 10.86
South bound latitude 48.9
West bound longitude 0.0
Dataset version 1.0
Dataset edition 3
Dataset manager Hidde Leijnse
Maintainer KNMI Data Services
Publication timestamp 2014-12-01T08:29:04Z
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
Dataset start time 2014-03-30
Dataset end time Unlimited
Identifier urn:xkdc:ds:nl.knmi::radar_tar_echotopheight_5min/1.0/
Lineage 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, 0.4, 0.8, 1.1, 2.0, 3.0, 4.5, 6.0, 8.0, 10.0, 12.0, 15.0, 20.0, and 25.0 degrees. These scans are used to compute echo top heights by taking the maximum height above the earth?s surface where reflectivity exceeds 7 dBZ. These two radar images are then combined to single echo top height values by taking a the maximum of the two echo top heights. The time stamp in the file name corresponds to the start time of the lowest radar scan.
Use limitation No use limitations
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