Precipitation - radar/gauge 5-minute ensemble nowcast of precipitation over the Netherlands
Ensemble nowcasts generated using pySTEPS based on 5-minute radar/gauge precipitation intensities. Ensemble nowcasts contain 20 members and are generated for 0-120 minutes lead time, with a time step of 5 minutes. NOTE: this is currently not an operational product, and hence there are no guarantees on its availability.
Standaard
- Datum (publicatie)
- 2022-06-27
- Versie
-
1.0
- Identifier
- urn:xkdc:ds:nl.knmi::precipitation_NL_ensemble_nowcast_5min/1.0/
- Doel van vervaardiging
-
Ensemble nowcasts provide information on uncertainties with the nowcasted precipitation, which is very useful for providing warnings. In addition to this, it is foreseen that this nowcast will replace the existing KNMI radar nowcast.
- Status
- continu geactualiseerd
- Contactgegevens voor de data
-
Organisatie Naam Contactpersoon Email Rol Koninklijk Nederlands Meteorologisch Instituut (KNMI)
contactpunt
- Herzieningsfrequentie
- continu
-
DG Discovery Properties Vocabulary 1.0
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Precipitation
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Radar
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Nowcast
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STEPS
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Ensemble
-
Rain
-
- Trefwoorden
-
-
Open data
-
- Gebruiksbeperkingen
-
No use limitations
- (Juridische) toegangsrestrictie
- anders
- Overige beperkingen
- Veiligheidsrestricties
- vrij toegankelijk
- Ruimtelijk schema
- grid
- Taal
- English
- Karakterset
- utf8
- Onderwerp
-
- klimatologie, meteorologie atmosfeer
- Begindatum
- 2022-06-27
- Einddatum
- 9999-12-31
- Referentiesysteem identifier
- http://www.opengis.net/def/crs/EPSG/0/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
- Distributie formaat
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Naam Versie HDF5
3.5
- Distributeur contact
-
Organisatie Naam Contactpersoon Email Rol Koninklijk Nederlands Meteorologisch Instituut (KNMI)
contactpunt
- Bestands grootte
- 20
- OnLine bronnen
-
Protocol URL Naam landingpage
https://dataplatform.knmi.nl/catalog/datasets/index.html?x-dataset=precipitation_NL_ensemble_nowcast_5min&x-dataset-version=1.0 KNMI Data Platform
- Niveau kwaliteitsbeschrijving
- dataset
- Algemene beschrijving herkomst
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Radar reflectivities are measured by radars in the Netherlands (Herwijnen and Den Helder) , Belgium (Jabbeke and Houthalen-Helchteren), and Germany (Essen and Borkum). Single images per radar at 1500 m height are generated by linearly interpolating radar reflectivities in altitude. Radar reflectivities are then converted to rainfall intensities by using the Z=200R^1.6 formula. A mean bias correction factor is derived based on the most recent 1 hour rainfall accumulations from automatic rain gauges. The resulting radar rainfall estimates from all radars are then combined to a single product by taking a weighted average. The weigths are a function of the distance of a given point to the radar. These precipitation intensity fields are then used in the pySTEPS algorithm to generate a 20-member ensemble of radar nowcasts with up to 2 hours lead time.
Metadata
- Metadata ID
- 8745be6e-0111-11ed-b7ed-52de3d22f2a8 XML
- Taal
- English
- Karakterset
- utf8
- Hierarchisch niveau
- dataset
- Metadata datum
- 2024-10-01T08:19:44.509Z
- Metadata standaard naam.
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ISO 19115
- Metadata standaard versie
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ISO 19115:2003 NL Kernset 1.3 KNMI 2.1.0
- Metadata auteur
-
Organisatie Naam Contactpersoon Email Rol Koninklijk Nederlands Meteorologisch Instituut (KNMI)
contactpunt
- Landinstelling
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Taalcode Tekencodering Nederlands; Vlaams Engels utf8