Publication details

Cave microclimatology: diurnal variations in aerosol particle concentrations

Authors

FAIMON Jiří LIČBINSKÝ Roman LANG Marek ÜBERHUBEROVÁ Jarmila HEBELKA Jiří

Year of publication 2019
Type Article in Periodical
Magazine / Source Theoretical and Applied Climatology
MU Faculty or unit

Faculty of Science

Citation FAIMON, Jiří, Roman LIČBINSKÝ, Marek LANG, Jarmila ÜBERHUBEROVÁ and Jiří HEBELKA. Cave microclimatology: diurnal variations in aerosol particle concentrations. Theoretical and Applied Climatology. Wien: Springer Wien, 2019, vol. 137, 3-4, p. 2841-2852. ISSN 0177-798X. Available from: https://dx.doi.org/10.1007/s00704-019-02776-1.
web https://link.springer.com/article/10.1007/s00704-019-02776-1
Doi http://dx.doi.org/10.1007/s00704-019-02776-1
Keywords aerosol particle; diurnal variation; dynamic model; cave microclimate; cave airflow; size distribution
Description Based on a case study in speleotherapeutic Císařská Cave (Moravian Karst, Czech Republic), the behavior of cave aerosol was studied. The particle size distribution in the aerosol showed an atypical shape with majority of nucleation mode particles. The particle number concentrations oscillated diurnally with the amplitude of 1935 cm-3 (nanoparticles in the range of 6-154 nm) and 436 cm-3 (submicron particles in the range of 154-942 nm). This behavior was simulated under the use of simplified dynamic model. At the model optimization, it was found that the part of aerosol particles (submicron particles especially) was introduced into the cave from exterior by cave ventilation (controlled by external temperature) with participation of external wind and traffic. Other parts of the particles (the nanoparticles especially) probably arose directly in the cave. The presented findings could be important for better understanding of the factors governing cave microclimate.

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