Why are limestone caves hot and cold?

Why are caves hot and cold? The reason for this is that the ratio of cold air and hot air is different. Cold air is heavier and sinking, while warm air is lighter.

The hole underneath the cave is filled with hot hot air, and the air cannot flow, so it looks warmer and becomes a "warm hole". In caves upward, cold air seeps into the cave and appears more natural as it accumulates. Cold water pools, such caves have become "cold holes".

The deep caves and winding corridors are very subtle, the roaring waterfalls are thrilling, stalagmites stand in the caves, and stalactites hang upside down. What's even more interesting is that this cave is cold and some warm, as if you went through two seasons at the same time. There are dots in the rolling holes, top holes, middle holes, and bottom holes.

When entering through the hole, if you go up into the higher hole, one will feel as warm as spring; And if you go down into the lower holes, you will feel apathy and arrogance. What's even more interesting is that some of these caves are cold, while others are warm and distinctive, and seem to have gone through two seasons of time. The cave in Yixing has a top hole, a middle hole and a bottom hole.

If you enter through the hole in the middle, you can climb to the hole at the top, which makes the person feel warm like spring. There is also a big difference in temperature between the Human Double Dragon Cave and the Evolved Curling Cave, with the Double Dragon Cave facing down being warm and pleasant, and the mouth curling stone being cool and peculiar. In the cave below the hole, hot warm air cannot fill and flow out, so it is very warm and "warm".

In a cave with the hole facing up, cold air is drilled into the cave. More products, such as natural cold cellar caves, become "cold holes". In addition to this cold and warm characteristic, the mountains of Yixing often see hazy "clouds" in the top holes.

Large fields: This cloud layer is a wonderful landscape formed by the cold air from the outside of the cave and the hot air that accumulates on the top of the cave. In addition to this warm and cold quality, Yixing's Shantou Cave often sees fields shrouded in fog in the upper layer. This cloud layer is an excellent view of the cold air outside the cave and the hot air that accumulates above it.

The limestone caves, some of which are cold, others that are unusually warm, are entered at the same time, as if you have experienced two seasons. Why is there a difference between hot and cold in a cave? It turns out that this is mainly due to the difference in the proportion of cold and warm air.

Cold air is heavier and sinks, while warm air is lighter and rises. In the cave downward from the entrance of the cave, the lighter warm air is filled in it and cannot flow out, so it is particularly warm and becomes a "warm cave"; In the cave with the entrance facing up, cold air enters the cave and accumulates more and more, like a natural reservoir of cold air, and such a cave becomes a "cold hole".