õhukihti

õhukihti is an Estonian term that translates to "air layer" or "atmospheric layer." It refers to the distinct strata that make up Earth's atmosphere. These layers are differentiated by their temperature profiles, chemical composition, and altitude. The primary layers, starting from the surface and moving upwards, are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Each õhukihti plays a crucial role in Earth's climate, weather patterns, and protection from solar radiation. The troposphere, the lowest layer, contains most of the atmosphere's mass and is where weather phenomena occur. The stratosphere contains the ozone layer, which absorbs harmful ultraviolet radiation. The mesosphere is where meteors typically burn up, and the thermosphere is characterized by extremely high temperatures due to absorption of solar radiation. The exosphere gradually fades into outer space. Understanding the properties and interactions within these õhukihti is fundamental to atmospheric science and meteorology.