Precipitation - radar/gauge 3 hour accumulations over the Netherlands
Gridded files of radar-derived 3 hour precipitation accumulations, corrected by rain gauge data. Radar data from 1500 m over the Netherlands and surrounding area measured are corrected by data from the 32 KNMI automatic rain gauges. Time interval is 1 hour. See data set radar_tar_corr_accum_03h/2.0 for an archive that goes back to 2010.
Simple
- Date (Publication)
- 2014-12-01
- Edition
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4
- Citation identifier
- urn:xkdc:ds:nl.knmi::radar_corr_accum_03h/1.0/
- Status
- On going
- Point of contact
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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
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Precipitation
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Rain
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Radar
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Gauge
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Accumulation
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- Keywords
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Dynamic
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Open data
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- Use limitation
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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
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- Climatology, meteorology, atmosphere
- Begin date
- 2008-01-01
- End date
- 9999-12-31
- 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
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Name Version HDF5
3.5
- Distributor contact
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Organisation name Individual name Electronic mail address Role Koninklijk Nederlands Meteorologisch Instituut (KNMI)
Point of contact
- Transfer size
- 0.1
- OnLine resource
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Protocol Linkage Name landingpage
https://dataplatform.knmi.nl/catalog/datasets/index.html?x-dataset=radar_corr_accum_03h&x-dataset-version=1.0 KNMI Data Platform
- Hierarchy level
- Dataset
- Statement
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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, 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. Radar reflectivities are then converted to rainfall intensities by using the Z=200R^1.6 formula, and these rainfall intensities are accumulated to 3-hour sums. A mean bias correction is then performed based on the available 3-hour rainfall accumulations from automatic rain gauges. These two resulting radar rainfall estimates from both 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.
Metadata
- File identifier
- 2c423060-28bc-42cc-af20-69a77e4e19b2 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2024-10-01T08:19:12.696Z
- Metadata standard name
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ISO 19115
- Metadata standard version
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ISO 19115:2003 NL Kernset 1.3 KNMI 1.1
- Metadata author
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Organisation name Individual name Electronic mail address Role Koninklijk Nederlands Meteorologisch Instituut (KNMI)
Point of contact
- Other language
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Language Character encoding Dutch; Flemish English UTF8