Hourly monitoring of cave temperature has begun in 2007 at 4 places. Measurement places present impact of different factors, e.g. distance of the cave entrance (close vs. far), degree of ventilation (strongly vs. poorly ventilated passages), impact of tourism (touristic vs. non-touristic passages), type of influental entrance (upper vs. lower). Also other smaller but older temperature datasets (1933-1937) are available. Temperature can be compared with other parallelly measured parameters, like relative humidity, cave air CO2 concentration, wind direction and speed etc.

This dataset contains information about the water level of the Los Molinos spring (Sorbas, Spain) (1973-2014) and water chemical composition. In addition, measures of temperature and CO2 outside and inside the caverns of the karst system in gypsum of Sorbas, isotopic water composition and micro erosion are provided.

At the end of one-month-long period of very low outside temperatures (January 2017), air temperature was measured at 74 sites in 25 km long Postojna-Planina Cave System. Spatial data were further interpolated in GIS Surfer (Golden Software) to 10×10 m grid. Results show strong impact of ventilation that reduces average temperature of the karst massif (8.7-11.4 °C) to nearly freezing temperature close to the entrance. Additionally, strong impact is recognized by allogenic underground river that reduces air temperature of the middle part of cave system to about 4 °C. On the other hand, weakly ventilated passages indicate very stagnat temperature with les than 0.1 °C of annual variation. This study shows very varied conditions for underground fauna despite general belief that annual air temperature in caves is very constant. Measurements will be repeated at the end of summer when the highest temperatures are expected to calculate maximal annual temperature variation.

Cave microclimate is prone to important changes in certain passages due to intensive tourism. Monitoring the climatic parameters (air temperature, CO2) in Postojna-Planina Cave System helps to have a proper picture of the impact of tourism for the cave. It is very useful to compare if additional increase of temperature is associated with the changes at the surface climate. The dataset comprises two types of daily mean air temperature data: 1) the daily mean air temperature data (°C) measured in “Lepe jame” cave passage from Postojna Cave, counting constantly a very high number of tourists; the measurements were made in the same point, by three sensors placed at three different height points (in the wall cracks [T1], at ceiling level [T3], and at 2 m height [T2]). Values are recorded at 10 min intervals and then averaged for daily data (the dataset for Lepe jame cave passage is provided by MEIS Environmental consulting d.o.o. (http://www.meis.si/) while the data are part of the project "Assesment of natural and antropogenic processes in micrometeorology of Postojna cave system by numerical models and modern methods of data aquisition and transfer" [https://izrk.zrc-sazu.si/en/programi-in-projekti/assesment-of-natural-and-antropogenic-processes-in-micrometeorology-of-postojna#v]; 2) the surface daily mean air temperature measured at 2 m height (°C) at the Postojna meteorological station, as part of the national network of meteorological stations within the Environmental Agency of the Republic of Slovenia (ARSO; http://meteo.arso.gov.si/).

A geological / geodiversity map of the Samaria National Park was created in 2015, covering the areas' diverse and unique geotopes and also includes a geological risk assessment map of the Samaria Gorge visitors' path.