troposphere
/'trɔpəsfiə/
Học thuậtThân thiện
Definition
- Noun:
- The lowest major layer of the Earth's atmosphere: The troposphere is the atmospheric layer closest to the Earth's surface, where nearly all weather phenomena occur. Its height varies from about 4 miles (7 km) at the poles to about 11 miles (17 km) at the equator.
Usage
- The word "troposphere" is a scientific term used primarily in meteorology, climatology, and earth sciences. It refers specifically to a defined region of the atmosphere.
- It is typically used with the definite article "the" (e.g., troposphere) when speaking about it in general terms.
Examples
- Noun:
- Commercial airplanes typically fly in the lower part of the troposphere.
- Temperature generally decreases with altitude in the troposphere.
- Scientists study pollutants that are trapped in the troposphere.
Advanced Usage
- "Tropospheric" (adjective): Pertaining to or located in the troposphere.
- Tropospheric ozone is a major component of smog.
- "Upper/Lower troposphere": Used to specify a particular region within this atmospheric layer.
- The jet stream is found in the upper troposphere.
Variants and Related Words
- Stratosphere (noun): The atmospheric layer directly above the troposphere.
- Atmosphere (noun): The envelope of gases surrounding the Earth or another planet.
- Tropospheric (adjective): Of or relating to the troposphere.
Synonyms
- Lower atmosphere: A less technical synonym, though it is less precise as it may not always refer to the exact scientific boundary of the troposphere.
Antonyms
- Stratosphere: The layer of the atmosphere immediately above the troposphere.
Noun
- the lowest atmospheric layer; from 4 to 11 miles high (depending on latitude)