Clouds - cloud base heights and backscatter profiles from CHM15k ceilometers in the KNMI observation network, 12 second instrument data

Koninklijk Nederlands Meteorologisch Instituutvia data.overheid.nl · updated 18 August 2025

Open at data.overheid.nl Also in the National Georegister The record as JSON

What's in it

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 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.

Files and services

KNMI Data PlatformHTML · dataplatform.knmi.nllandingpage
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