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Dataset

Clouds - cloud cover retrieved from infrared measurements at 10 minute intervals at CESAR observatory

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State Available
Data owner Koninklijk Nederlands Meteorologisch Instituut
Updated 24-06-2025
License CC-BY (4.0)
Thema
  • Lucht
Publicity level Public
Metadata Download (XML/RDF)

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Description

Four cloud cover parameters are retrieved continuously from sky temperature measurements by a scanning infrared radiometer (NubiScope). These parameters are resp. total, low -, middle - and high level cloud cover. Only measurements 20 degrees above horizon are used to create a hemispherical cloud mask. The temperature deviation of a sky pixel from an estimated background sky temperature determines whether a pixel is considered to be cloudy or clear sky. For more information about CESAR: https://ruisdael-observatory.nl/cesar/

cabauw cesar cloud-cover clouds core-dataset infrared open-data pyrometer ruisdael

Owner

Owner information

Data owner:
Koninklijk Nederlands Meteorologisch Instituut

Contact point

Department:
Koninklijk Nederlands Meteorologisch Instituut (KNMI)
Email address:
opendata@knmi.nl

Publication & catalogues

Data publisher:
Koninklijk Nederlands Meteorologisch Instituut

Reuse

Access rights:
Public
Status dataset:
Available

Licence & conditions

License:
CC-BY (4.0)

Location and time

Temporal coverage

Start coverage period:
01-05-2008
End coverage period:
30-04-2017

Relations

Comparable datasets

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  6. Rainfall rate - data measured with an X-band radar at 213 m height in Cabauw
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  8. Wind - lidar wind profiles measured at North Sea wind farm TenneT platforms 1 second raw data
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  10. Clouds - cloudbase heights and backscatter profiles from CT75 ceilometer at 30 s interval for Cabauw

Metadata

Language settings

Data language

  • English

Metadata language

  • English

Identifiers

Primary identifier

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