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Dataset: CCN, hygroscopicity, predicted cloud droplet numbers Weissfluhjoch
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Updated 17 Dec 2020

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Dataset summary

The dataset on this page is a cache of the dataset It is a snapshot of the dataset as it appeared on 08 Jul 2021 03:43 GMT. The current dataset could have changed in the meantime. Attribution: Contains information © European Union licensed under reuse policy of the European Commission.

Cloud Condensation Nuclei (CCN) data: A Droplet Measurement Technologies (DMT) single-column continuous-flow streamwise thermal gradient chamber (CFSTGC; Roberts and Nenes, 2005) was deployed at the measurement site Weissfluhjoch (2700 m a.s.l., LON: 9.806475, LAT: 46.832964) to record the in-situ CCN number concentrations between February 24 and March 8 2019 for different supersaturations (SS). To account for the difference between the ambient (~735 mbar) and the calibration pressure (~800 mbar), the SS reported by the instrument is adjusted by a factor of 0.92. The CFSTGC was cycled between 6 discrete SS values ranging from 0.09% to 0.74%, producing a full CCN spectrum every hour. The raw CCN measurements are filtered to discount periods of transient operation and whenever the room temperature housing the instrument changed sufficiently to induce a reset in column temperature. Additional information can be found in Section 2.1.2 [here](

Dataset:CCN, hygroscopicity, predicted cloud droplet numbers Weissfluhjoch
Provider:EU Open Data Portal
Licence:License information is derived automatically. Refer to source for license information before using this data.

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