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The Cloud Physical Properties (CPP) algorithm is being developed at KNMI to derive cloud, precipitation and radiation products from satellite instruments such as FCI onboard the Meteosat Third Generat...
| Data owner: | Koninklijk Nederlands Meteorologisch Instituut |
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| Updated: | 14-08-2026 |
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Dataset
Cloud-free and cloud-modified UV index data for an area covering the Benelux for each quarter of an hour from 03:00 UTC up to and including 21:45 UTC, both in the usual non-dimensional unit, and given...
| Data owner: | Koninklijk Nederlands Meteorologisch Instituut |
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| Updated: | 16-04-2026 |
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This dataset contains backscatter profiles from the CHM15k ceilometer, a single-wavelength, automatic operating at 1064 nm. It includes daily uncalibrated, unvalidated data reported by the instrument ...
| Data owner: | Koninklijk Nederlands Meteorologisch Instituut |
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| Updated: | 24-02-2026 |
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This dataset contains calibrated attenuated backscatter profiles from the CHM15k ceilometer, a single-wavelength, automatic operating at 1064 nm. It includes calibrated, unvalidated daily aggregated f...
| Data owner: | Koninklijk Nederlands Meteorologisch Instituut |
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| Updated: | 24-02-2026 |
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This dataset contains backscatter profiles from the CHM15k ceilometer, a single-wavelength, automatic operating at 1064 nm. It includes uncalibrated, unvalidated data reported by the instrument at 33 ...
| Data owner: | Koninklijk Nederlands Meteorologisch Instituut |
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| Updated: | 24-02-2026 |
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This dataset contains calibrated attenuated backscatter profiles from the CHM15k ceilometer, a single-wavelength, automatic operating at 1064 nm. It includes calibrated, unvalidated files for 33 sites...
| Data owner: | Koninklijk Nederlands Meteorologisch Instituut |
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| Updated: | 24-02-2026 |
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Degree days are determined by the effective daily mean temperature (Teff). Teff is calculated with the daily mean temperature (TG) and the daily mean windspeed (FG). Teff = TG - 2/3 * FG. Degree days ...
| Data owner: | Koninklijk Nederlands Meteorologisch Instituut |
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| Updated: | 18-11-2025 |
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This dataset contains cloud condensation nuclei counts (expressed in counts/cm3) and the particle size distribution (top of bins are 0.75, 1.0, 1.5, 2.0, 2.5, up to 10 microns), expressed in counts/s ...
| Data owner: | Koninklijk Nederlands Meteorologisch Instituut |
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| Updated: | 18-11-2025 |
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2-dimensional clouddata (IR brightness temp. and cloudmask) and cloudcover (total, high, middle and low) derived from sky brightness temperatures recorded with a scanning pyrometer. For more informati...
| Data owner: | Koninklijk Nederlands Meteorologisch Instituut |
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| Updated: | 18-11-2025 |
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Hourly synoptic in-situ observations are collected from operational monitoring stations in the North Sea. The data are subjected to quality control and, if needed, adjusted. Observed variables include...
| Data owner: | Koninklijk Nederlands Meteorologisch Instituut |
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| Updated: | 03-11-2025 |
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