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 Herwijnen and Den Helder. Forecast interval is 5 minutes, with lead times up to 2 hours.
This dataset is based on a very basic reflectivity composite. For a more advanced precipitation nowcast please use this dataset: https://dataplatform.knmi.nl/dataset/radar-forecast-2-0
Simple
- Date (Publication)
- 2014-12-01
- Edition
-
2
- Citation identifier
- urn:xkdc:ds:nl.knmi::radar_forecast/1.0/
- Status
- On going
- Point of contact
-
Organisation name Individual name Electronic mail address Role Koninklijk Nederlands Meteorologisch Instituut (KNMI)
Point of contact
- Maintenance and update frequency
- Continual
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DG Discovery Properties Vocabulary 1.0
-
-
Precipitation
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Rain
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Radar
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Forecast
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Nowcast
-
Meteorological
-
- Keywords
-
-
HVD
-
Dynamic
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Open data
-
- Use limitation
-
No use limitations
- Access constraints
- Other restrictions
- Other constraints
- Classification
- Unclassified
- Spatial representation type
- Grid
- Distance
- 1000 meters
- Language
- English
- Character set
- UTF8
- Topic category
-
- Climatology, meteorology, atmosphere
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- Begin date
- 2008-01-01
- End date
- 9999-12-31
Vertical extent
- Minimum value
- 1500.0
- Maximum value
- 1500.0
- Reference system identifier
- 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
- Distribution format
-
Name Version HDF5
3.5
- Distributor contact
-
Organisation name Individual name Electronic mail address Role Koninklijk Nederlands Meteorologisch Instituut (KNMI)
Point of contact
Digital transfer options
- Transfer size
- 0.1
- OnLine resource
-
Protocol Linkage Name landingpage
https://dataplatform.knmi.nl/catalog/datasets/index.html?x-dataset=radar_forecast&x-dataset-version=1.0 KNMI Data Platform
- Hierarchy level
- Dataset
- Statement
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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. Radar reflectivity fields are forecast by extrapolating the current radar field using advection velocitite derived from previous radar reflectivity fields.
Metadata
- File identifier
- 0bf067dd-9928-4d02-929e-3632b3f93363 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2026-06-02T08:23:29.01724Z
- Metadata standard name
-
ISO 19115
- Metadata standard version
-
ISO 19115:2003 NL Kernset 1.3 KNMI 1.1
- Metadata author
-
Organisation name Individual name Electronic mail address Role Koninklijk Nederlands Meteorologisch Instituut (KNMI)
Point of contact
- Other language
-
Language Character encoding Dutch; Flemish English UTF8
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