mesosphere
Học thuậtThân thiện
Definition
- Noun:
- The atmospheric layer between the stratosphere and the thermosphere: The mesosphere is the third major layer of Earth's atmosphere, situated directly above the stratosphere and below the thermosphere. It is characterized by decreasing temperatures with increasing altitude.
Usage Examples
- Noun:
- Most meteors burn up in the mesosphere.
- The mesosphere is too high for airplanes but too low for satellites.
- Temperatures in the mesosphere can drop below -90°C.
Advanced Usage
- Scientific Context: The term is used primarily in meteorology, atmospheric science, and geology to describe a specific region of a planetary atmosphere.
- Scientists study noctilucent clouds, which form in the upper mesosphere.
- Comparative Planetary Science: The concept can be applied to other planets with substantial atmospheres.
- The Martian mesosphere is colder and thinner than Earth's.
Variants and Related Words
- Mesospheric (adj): Relating to or characteristic of the mesosphere.
- Mesospheric winds are difficult to measure directly.
Synonyms
- Middle atmosphere (This is a broader, less precise term that often includes the upper stratosphere and mesosphere).
- Atmospheric layer (A general term for any stratified region of the atmosphere).
Different Meanings
- The word "mesosphere" has a single, specific scientific meaning related to atmospheric structure. It does not have common idiomatic or figurative uses.
Noun
- the atmospheric layer between the stratosphere and the thermosphere