Gridded files of daily precipitation sum in the Netherlands measured on +- 300 locations of the voluntary network from 08:00-08:00 UT. Grids are calculated based on validated data with a 4 week delay on average.


Dataset name Rd1
Status onGoing
Last metadata update August 8, 2023, 06:30 (UTC)
Update frequency monthly
License https://creativecommons.org/publicdomain/zero/1.0/
North bound latitude 53.7
East bound longitude 7.4
South bound latitude 50.6
West bound longitude 3.2
Dataset version 5
Dataset edition 8
Dataset manager Dr. Peter Siegmund
Maintainer KNMI Data Services
Publication timestamp 2014-02-10T13:12:19Z
Reference system identifier EPSG28992
Dataset start time 1951-01-01
Dataset end time Unlimited
Identifier urn:xkdc:ds:nl.knmi::Rd1/5/
Lineage statement The interpolation method is ordinary kriging. Observations are square root transformed and back-transformed after interpolation using quantiles calculation. For every day a variogram is automatically fitted. The nugget is zero and the variogrammodel is spherical or exponential, depending on the best fit. The dates in the file name refer to the end-time and start-time of the measurement. The measurement at 08:00 UT (end-time) is assigned to the file in the folder of the preceding day on the FTP server as 2/3 of the measurement period falls on the preceding day. In other words: the measurement with the end-time 19810102T080000 is assigned to the folder 1981/01/01 on the FTP server or in the tar-file. The number of observations varies from 270 to 310.
Purpose Netherlands Hydrological modelling Instrument (NHI)
Supplemental information http://www.knmi.nl/bibliotheek/knmipubIR/IR2010-01.pdf
Use limitation No use limitations
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