õhutasandid

õhutasandid refers to the layered structure of the Earth's atmosphere. This layering is primarily determined by changes in temperature with altitude. The lowest layer is the troposphere, where temperature generally decreases with height. This is where most weather phenomena occur and where we live. Above the troposphere is the stratosphere, characterized by a temperature increase with altitude due to the absorption of ultraviolet radiation by the ozone layer. Next is the mesosphere, where temperatures decrease again with increasing altitude, making it the coldest layer of the atmosphere. Above the mesosphere lies the thermosphere, where temperatures rise dramatically due to the absorption of high-energy solar radiation, although the air is extremely thin. The uppermost layer is the exosphere, which gradually fades into outer space. These distinct atmospheric layers play crucial roles in regulating Earth's climate, protecting life from harmful radiation, and influencing radio wave propagation. The boundaries between these layers are known as pauses, such as the tropopause, stratopause, and mesopause, where the temperature trend reverses. Understanding these õhutasandid is fundamental to meteorology, atmospheric science, and space exploration.