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mesosphere
IPA:
Dictionary definition of mesosphere
The layer of the Earth's atmosphere located above the troposphere and below the thermosphere.
"The mesosphere is the layer where the aurora borealis occurs."
Detailed meaning of mesosphere
It extends from about 50 to 85 kilometers (31 to 53 miles) high. The temperature in the mesosphere decreases as altitude increases. This is because the mesosphere is located above the majority of the Earth's weather and water vapor, which means that it is not heated by the sun's energy in the same way as the lower layers. The mesosphere is also known for its intense winds, which can reach up to 300 miles per hour. The mesosphere is also home to meteors and meteoroids, as this is the layer where they burn up upon entering the Earth's atmosphere. Additionally, it is also the layer where auroras occur, as well as other atmospheric phenomenon like noctilucent clouds and sprites.
Example sentences containing mesosphere
1. The mesosphere is the third layer of the Earth's atmosphere, positioned above the stratosphere.
2. Unlike the stratosphere, the temperature in the mesosphere decreases with altitude.
3. Did you know that most meteors burn up in the mesosphere due to its dense composition?
4. Some scientists study the mesosphere using high-altitude balloons or radar technology.
5. The mesosphere stretches from about 50 to 85 kilometers above our planet.
6. Noctilucent clouds, the highest clouds in Earth's atmosphere, form in the mesosphere.
History and etymology of mesosphere
The noun 'mesosphere' has its etymological origins in Greek. It is formed from two Greek words: 'mesos,' meaning 'middle,' and 'sphaira,' meaning 'sphere' or 'ball.' In atmospheric science, the 'mesosphere' refers to the layer of the Earth's atmosphere located above the troposphere and below the thermosphere. The term 'mesosphere' emphasizes its position as the middle layer of the Earth's atmosphere when considering its vertical stratification. This region is characterized by its unique properties and interactions with various atmospheric phenomena. Its name reflects its Greek roots in the concept of being the middle sphere or layer within the Earth's atmospheric system.
Further usage examples of mesosphere
1. The temperature in the mesosphere can drop as low as minus 90 degrees Celsius.
2. Although the mesosphere is part of our atmosphere, it's harder to study than outer space.
3. The mesosphere lies directly above the ozone-rich stratosphere.
4. At night, the upper portion of the mesosphere cools down rapidly.
5. The combination of low temperature and low pressure makes the mesosphere extremely thin.
6. Due to its high altitude, the mesosphere has less atmospheric pressure than the layers below it.
7. The mesosphere is sometimes referred to as the "shooting star layer" because of the meteors that burn up there.
8. It's challenging to send traditional aircraft or satellites into the mesosphere because of its characteristics.
9. We know less about the mesosphere than almost any other layer of Earth's atmosphere.
10. The boundary between the mesosphere and the thermosphere above it is called the mesopause.
11. The term "mesosphere" was derived from the Greek words for "middle" and "sphere," reflecting its position in the atmosphere.
12. Unlike the stratosphere, the mesosphere does not contain ozone to absorb solar radiation, hence the decrease in temperature.
13. Scientists often struggle to conduct detailed research on the mesosphere due to its hostile conditions.
14. Despite its inhospitability, the mesosphere plays an important role in Earth's atmospheric dynamics.
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SAT 11 (Scholastic Assessment Test), Biological and Geological Sciences, Geography and Topography
stratosphere,troposphere
aeropause,atmosphere,exosphere,ionosphere,layer,mantle,middle,thermosphere
Synonyms for mesosphere
Quiz categories containing mesosphere
atmosphere layer, ground, earth, surface
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