Clouds - cloud base heights and backscatter profiles from CHM15k ceilometers in the KNMI observation network, 12 second instrument data
This dataset contains backscatter profiles from the CHM15k ceilometer, a one-wavelength backscatter lidar operating at 1064 nm. It includes uncalibrated, unvalidated data reported by the instrument at 33 sites in the nationwide meteorological observing network. Retrieved cloud base heights up to 3 layers, sky condition information and aerosol layer height, based on manufacturer algorithms are included. Vertical resolution: 10 m, time resolution: 12 s.
Simple
- Date (Publication)
- 2025-08-18
- Edition
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2
- Citation identifier
- urn:xkdc:ds:nl.knmi::ceilonet_chm15k_backsct_la1_t12s/v2.0/
- 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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Clouds
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- Keywords
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Aerosol
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Lidar
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Backscatter
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Ceilometer
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Ruisdael
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Dynamic
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Open data
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Core dataset
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- Use limitation
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No use limitations
- Access constraints
- Other restrictions
- Other constraints
- Classification
- Unclassified
- Denominator
- 1
- Language
- English
- Character set
- UTF8
- Topic category
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- Climatology, meteorology, atmosphere
))
- Begin date
- 2025-08-01
- End date
- 9999-12-31
- Reference system identifier
- http://www.opengis.net/def/crs/EPSG/0/4326
- Distribution format
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Name Version NetCDF
4
Distributor
- Distributor contact
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Organisation name Individual name Electronic mail address Role Koninklijk Nederlands Meteorologisch Instituut (KNMI)
Point of contact
- Ordering instructions
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Data are stored at KNMI data archive. See contact information for data requests.
- OnLine resource
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Protocol Linkage Name landingpage
https://dataplatform.knmi.nl/catalog/datasets/index.html?x-dataset=ceilonet_chm15k_backsct_la1_t12s&x-dataset-version=v2.0 KNMI Data Platform
- Hierarchy level
- Dataset
- Statement
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Raw instrument data from the CHM15k ceilometers in the meteorological observing network, firmware version v1.010 or later. Instrument manual: https://www.lufft.com/fileadmin/lufft.com/07_downloads/1_manuals/Manual_CHM15k_EN_R19.pdf
Metadata
- File identifier
- 2fcea330-791d-11f0-8eed-f020ff5ae916 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2025-08-18
- 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
Overviews
Spatial extent
Provided by
