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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 (Rijk)
Updated 21-06-2025
License CC-BY (4.0)
Thema
  • Air
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 (Rijk)

Contact point

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

Publication & catalogues

Data publisher:
Koninklijk Nederlands Meteorologisch Instituut (Rijk)

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

  1. Clouds - 2D cloudmask from infrared measurements at 10 minute intervals at CESAR observatory
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  4. Precipitation - 10 seconds measurements by Ruisdael Micro Rain Radar (Metek) in Cabauw
  5. Precipitation - 10 seconds measurements by Ruisdael Micro Rain Radar (Metek) at Slufter
  6. Precipitation - 10 seconds measurements by Ruisdael Micro Rain Radar (Metek) at De Zweth
  7. Precipitation - 10 seconds measurements by Ruisdael Micro Rain Radar (Metek) at Westmaas.
  8. Precipitation - 10 seconds measurements by Ruisdael Micro Rain Radar (Metek) at Green Village (TU Delft)
  9. Clouds - cloudbase heights and backscatter profiles from CT75 ceilometer at 30 s interval for Cabauw
  10. Clouds - cloud base heights and backscatter profiles from CHM15k ceilometers in the KNMI observation network, 12 second instrument data

Metadata

Language settings

Data language

  • English

Metadata language

  • English

Identifiers

Primary identifier

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Documentation

KNMI Data Platform

HTML CC-BY (4.0)
Download: https://dataplatform.knmi.nl/catalog/datasets/index.html?x-dataset=cesar_nubiscope_cldcov_la1_t10&x-dataset-version=v1.0

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