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troposphere

noun

/ˈtrɒpəsfɪə/

IPA:

Dictionary definition of troposphere

The lowest layer of the Earth's atmosphere, extending from the surface up to an altitude of around 7 to 20 kilometers (4 to 12 miles).
"The troposphere is where weather occurs and where most clouds are found."

Detailed meaning of troposphere

The troposphere is where most of the Earth's weather occurs, as it is the layer where temperature, pressure, and moisture levels are most conducive to supporting life. This layer is characterized by a decrease in temperature with increasing altitude, due to the fact that it is heated from below by the Earth's surface. The boundary between the troposphere and the layer above it, known as the stratosphere, is marked by a layer of air known as the tropopause. The troposphere contains around 80% of the total mass of the Earth's atmosphere and is composed mainly of nitrogen, oxygen, and trace amounts of other gases. Carbon dioxide, water vapor, and other greenhouse gases are also found in the troposphere and play a significant role in regulating the Earth's climate. The troposphere is an important layer of the atmosphere, as it is where we live and where weather patterns and climate are formed.

Example sentences containing troposphere

1. The troposphere is the atmospheric layer where weather changes occur.
2. When a plane reaches cruising altitude, it's flying in the lower stratosphere, just above the troposphere.
3. On a clear day, the blue of the sky is the reflected color of the troposphere.
4. As we ascend in the troposphere, the temperature typically decreases.
5. In the troposphere, the ozone concentration is much lower compared to the stratosphere.
6. Most of the Earth's atmospheric mass is found within the troposphere.

History and etymology of troposphere

The noun 'troposphere' has its etymological roots in two Greek words: 'tropos,' meaning 'turn' or 'mix,' and 'sphaira,' meaning 'sphere' or 'ball.' In atmospheric science, the 'troposphere' refers to the lowest layer of the Earth's atmosphere, extending from the surface up to an altitude of around 7 to 20 kilometers (4 to 12 miles). The term 'troposphere' emphasizes the concept of mixing or turning within this atmospheric layer, as it is where most of Earth's weather phenomena occur. Within the troposphere, air masses mix and circulate, leading to the formation of clouds, precipitation, and the various weather patterns that directly affect life on the planet's surface. Its name reflects its Greek origins in the idea of a dynamically active layer where atmospheric mixing and changes are prominent.

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Further usage examples of troposphere

1. Weather balloons are designed to float up through the troposphere, collecting data along the way.
2. Human activities release pollutants that accumulate in the troposphere, affecting air quality.
3. The troposphere is rich in nitrogen, oxygen, and water vapor.
4. At the equator, the troposphere can extend to an altitude of 20 kilometers.
5. Storm clouds are confined to the troposphere due to its unique temperature and pressure conditions.
6. The boundary between the troposphere and the stratosphere is known as the tropopause.
7. Satellite images allow meteorologists to visualize large-scale patterns within the troposphere.
8. The amount of water vapor in the troposphere greatly influences weather and climate.
9. The troposphere's properties change with latitude, being thickest at the equator and thinnest at the poles.
10. Commercial aircraft often encounter turbulence in the lower levels of the troposphere.
11. Most of the energy from the sun is absorbed in the troposphere, warming the Earth.
12. In the troposphere, the air's temperature, humidity, and pressure affect the weather patterns we experience.
13. The health of the troposphere is essential for the survival of all life on Earth.
14. The troposphere is the lowest layer of Earth's atmosphere.
15. Air pollution is mostly concentrated in the troposphere.