HYDROLOGY AND GLACIAL CAVES

The hydrology of a cave (i.e., the movement and volume of water within it) is also a key factor in its ice formation. Whether ice forms, persists, or melts in a cave depends primarily on how, when, and how much water enters it, as well as the temperature conditions inside.

Climate Change and the Fate of Cave Ice

The hydrology of a cave changes along with the climate and directly affects the stability of underground ice. Rising global temperatures are causing winters to become milder and shorter. As a result, less cold air—which is essential for maintaining the ice—enters the caves.

The ice formation in a cave is therefore the result of a delicate balance between water inflow, temperature, and air circulation. If this balance is disrupted—for example, by climate change—the underground ice may gradually disappear.

Ice as an Archive of the Past

Glaciated caves represent a unique natural environment where ice can remain preserved for hundreds to thousands of years. They are among the most sensitive indicators of climate change. Rising temperatures, changes in precipitation, and a weakening of natural air circulation are leading to the gradual melting of underground ice. Modern research methods focus, for example, on DNA analysis, radiometric analysis, carbon and oxygen isotope studies, the chemical composition of minerals, 3D scanning, and similar techniques. They yield new and fascinating insights that help uncover previously unknown secrets.

Thanks to cross-border cooperation, our museum has gained access to scientific findings that reveal the past lives of two bears, which were hidden beneath a layer of ice for millennia until they were discovered after the ice melted in 2024.

Drainage of Krakova hoľa (1751 m a.s.l.)

is realized by means of springs that concentrate precipitation waters leaking into the karst massif. The situation with the flow of waters in this massif is complicated. The effluences in Medzibrodie with the discharge over 60 l.s-1 are interconnected with corridors with so far known length of 14 kilometers, but their extent certainly exceeds 100 kilometres. Their discoveries have already for tens of years preoccupied cavers associated in the Slovak Speleological Society.