13 Sep 2021

13 Sep 2021

Review status: this preprint is currently under review for the journal ESSD.

In-situ microphysical characterization of low-level clouds in the Finnish sub-Arctic, extensive dataset

Konstantinos Matthaios Doulgeris1, Heikki Lihavainen1,3, Anti-Pekka Hyvärinen1, Veli-Matti Kerminen2, and David Brus1 Konstantinos Matthaios Doulgeris et al.
  • 1Finnish Meteorological Institute, Erik Palménin aukio 1, P.O. Box 503, FIN-00100 Helsinki, Finland
  • 2Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
  • 3Svalbard Integrated Arctic Earth Observing System (SIOS), SIOS Knowledge Centre, Svalbard Science Centre, P.O. Box 156, N-9171 Longyearbyen, Norway

Abstract. Continuous, semi-long-term, ground based in-situ cloud measurements were conducted during eight Pallas Cloud Experiments (PaCE) held in autumns between 2004 and 2019. Campaigns were carried out in the Finnish sub-Arctic region at the Sammaltunturi station (67°58′24′′ N, 24°06′58′′ E; 560 m MSL), the part of Pallas Atmosphere – Ecosystem Supersite and Global Atmosphere Watch (GAW) program. Two cloud spectrometer ground setups and a weather station were installed on the roof of the station to measure in-situ cloud properties and several meteorological variables. Thus, the obtained data sets include the size distribution of cloud droplets as a measured cloud parameter along with the temperature, dew point temperature, humidity, pressure, wind speed and direction, (global solar) sun radiation and visibility at the station. Additionally, the number concentration, effective diameter, median volume diameter and liquid water content from each instrument were derived. The presented data sets provide a great insight into microphysics of low-level clouds in sub-Arctic conditions over a wide range of temperatures (includes cloud cases with temperature from -25.8 to 8.8 °C). The data are available from the FMI open data repository for each campaign and each cloud spectrometer ground setup individually: (Doulgeris et al., 2021).

Konstantinos Matthaios Doulgeris et al.

Status: open (until 08 Nov 2021)

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Konstantinos Matthaios Doulgeris et al.

Data sets

Data set for Doulgeris et al.2021: In-situ microphysical characterization of low-level clouds in the Finnish sub-Arctic, extensive dataset Doulgeris, K.-M., Lihavainen, H., Hyvärinen, A.-P., Kerminen, V.-M., and Brus, D.

Konstantinos Matthaios Doulgeris et al.


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Short summary
We produced and summarized data sets obtained from two cloud ground base spectrometers (CAPS and FSSP-100 ground setups) during eight years of Pallas Cloud Experiments campaigns conducted during autumns from 2004 until 2019 along with several meteorological variables. The campaigns took place in the Finnish sub-arctic region in a clear environment in temperatures that were usually below zero.This data set provides a helpful contribution to cloud microphysics processes.