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Abstract:

Monitoring of air temperature in the Yaltinskaya and Geofizicheskaya caves, situated in the Ay-Petri massif in the Mountainous Crimea, was conducted during 7 months. The purpose of this study is to determine the visitors’ influence on natural environment of the caves. Average temperature during the period of monitoring in Yaltinskaya cave was 7,55 °Ñ  (Ñv=0,01) and in Geophisicheskaya cave was 6,99 °Ñ(Ñv=0,06).

The visitation by tourists causes rising of air temperature up to 0,39 ˚Ñper day. In periods of low visitation the anthropogenic thermal anomalies broke down naturally during the night time, with the participation of processes of evaporation and condensation of cave moisture. In periods of high attendance a partial retention and accumulation of anthropogenic heat occurs. Daily thermal anomalies in starting and finishing periods of holiday season were at the average 0,04 ˚Ñ(Yaltinskaya) and 0,13 ˚Ñ(Geofizicheskaya). In the peak season they were 0,07 and 0,20 °Ñ, respectively.

The anthropogenic influence on the temperature of the studied caves has a seasonal character. It is unstable and is 1-2 orders of magnitude less than the seasonal variability of the natural temperature background.