The layer with the coolest temperatures at around 100°C is the stratosphere, specifically near the lower stratosphere, where temperatures can drop significantly with altitude as you move away from the troposphere. However, it's important to note that while temperatures can reach around 100°C in certain conditions within the atmosphere, typical temperature profiles indicate that the stratosphere generally experiences increasing temperatures with height due to ozone absorption of UV radiation. In the context of Earth's layers, the coldest temperatures are actually found in the mesosphere, where temperatures can drop as low as -90°C.
The lowest temperatures in the atmosphere exist in the mesosphere and thermosphere. These upper layers of the atmosphere can reach temperatures as low as -90 degrees Celsius (-130 degrees Fahrenheit) due to decreasing air density and high altitudes.
From Wikipedia:Temperature decreases with height in the mesosphere. The mesopause, the temperature minimum that marks the top of the mesosphere, is the coldest place on Earth and has an average temperature around −100 °C (−148.0 °F; 173.1 K)the mesosphere is the coldest layer in the atmosphere. It contains the ozone.OK!! the answer above is incorrect the coldest layer in the atmosphere is the Mesopause its the thin layer between the Mesosphere and Thermosphere. Also the Ozone is in the Stratosphere.Actually its correct because the mesopause is a part of the mesosphere....ok the 1st and 3rd answers are wrong! i should know im learning this in my 7TH GRADE SCIENCE CLASS! the ozone is in the stratosphere, the second closest layer to the earth. STUPIDS!
The center of a sunspot is one of the "coolest" places on the Sun's exterior (photosphere). At as low as 2700°C, sunspots are cooler than the typical 5500°C of the solar surface.
The atmosphere is divided into several layers, with temperature varying across them. The coldest layer is the mesosphere, where temperatures can drop to about -90°C. Above this is the stratosphere, which warms with altitude due to ozone absorption of ultraviolet radiation. The thermosphere is the hottest layer, with temperatures soaring above 2,500°C, although it would not feel hot due to the sparse air density.
The layer of the atmosphere with the greatest temperature range is the stratosphere. In this layer, temperatures increase with altitude due to the absorption of ultraviolet radiation by the ozone layer, leading to significant temperature variations. The temperature can vary from around -60°C (-76°F) at the lower stratosphere to about 0°C (32°F) near the stratopause, resulting in a substantial temperature range.
The thermosphere is the layer of the atmosphere that has the greatest range in temperature, with temperatures increasing with altitude due to the absorption of solar radiation. Temperature in the thermosphere can vary from below -100°C at the bottom to over 2,500°C at higher altitudes.
Mesosphere
B. Stratosphere. In the stratosphere, temperatures generally increase with altitude due to the presence of the ozone layer, which absorbs ultraviolet radiation from the sun and heats the surrounding air.
# Thermosphere:The word thermosphere means "heat sphere," or "warm layer." The temperatur of the thermosphere may reach 2000 degrees C or more. # Mesosphere:The tempereature in the mesosphere drops to about -100 degrees C. # Stratosphere:The stratospher is still cold, but not so cold as the Mesosphere. Temperatures stay around -60 degrees C. # Troposphere:The tropospher is the layer in which we all live.
Its a layer of our atmosphere, above the stratosphere, but beneath the thermosphere. It starts at around an altitude of 50-60km and ends at around an altitude of around 100-120km. The temperature tends to drop with increased height through the mesosphere. At the 100-120km point is the coldest place on earth, with temperatures around -160'C. Temperatures then start to rise again with height through the thermosphere.
The only layer I could think of would be the Thermosphere. The reason why this part of the atmosphere is so hot is that it is the top layer of the atmosphere.
The temperature in the Thermosphere can rise to 2,000° C.
The thermosphere is the layer of Earth's atmosphere with the highest temperatures. In this layer, temperatures can reach up to 2,500 degrees Celsius due to the absorption of high-energy solar radiation.
Solid to Gas - sublimation/depositing occurs at temperatures below 0.01°C. Solid to Liquid - melting/freezing occurs at temperatures above 0.01°C and below 100°C Liquid to Gas - boiling/condensing occurs at temperatures above 0.01°C and is complete above 100°C
The temperature in the troposphere decreases as altitude increases, ranging from about 15°C at the surface to around -60°C at the top. In the stratosphere, the temperature increases with altitude due to the presence of the ozone layer, reaching as high as 0°C. The mesosphere experiences decreasing temperatures again, dropping to around -90°C. Finally, in the thermosphere, temperatures can soar to thousands of degrees Celsius due to the absorption of solar radiation.
The freezing point is 0°C (32°F). The boiling point is 100°C (212°F).
The ozone layer is located in the lower stratosphere. The stratosphere has increasing temperature with increasing altitude. Today (2009mar09), the bottom of the stratosphere is about -45°C at the North pole, and about -65°C over the USA. Likewise for the South pole, it is about -45°C and over Australia it is about -75°C. See the link below for more infomation.