Why Does Oxygen Content Reach a Minimum Around 400 M Then Begin Increasing Again as Depth Increases
Layers of the Atmosphere
The envelope of gas surrounding the Earth changes from the ground upwardly. Five singled-out layers have been identified using...
- thermal characteristics (temperature changes),
- chemic composition,
- movement, and
- density.
Each of the layers are bounded by "pauses" where the greatest changes in thermal characteristics, chemical limerick, motion, and density occur.
Exosphere
This is the outermost layer of the atmosphere. Information technology extends from the top of the thermosphere to six,200 miles (10,000 km) above the earth. In this layer, atoms and molecules escape into infinite and satellites orbit the earth. At the lesser of the exosphere is the thermopause located around 375 miles (600 km) above the earth.
Thermosphere
Between most 53 miles (85 km) and 375 miles (600 km) lies the thermosphere. This layer is known equally the upper atmosphere. While nevertheless extremely sparse, the gases of the thermosphere become increasingly denser as one descends toward the world.
As such, incoming high energy ultraviolet and 10-ray radiation from the sun begins to be absorbed by the molecules in this layer and causes a large temperature increment.
Because of this absorption, the temperature increases with height. From as low as -184°F (-120°C) at the bottom of this layer, temperatures can reach as high as iii,600°F (2,000°C) near the top.
However, despite the high temperature, this layer of the temper would still feel very cold to our skin due to the very sparse atmosphere. The high temperature indicates the amount of the free energy absorbed past the molecules but with then few in this layer, the total number of molecules is not enough to rut our skin.
Accept it to the MAX! The Ionosphere
Mesosphere
This layer extends from around 31 miles (l km) above the Earth's surface to 53 miles (85 km). The gases, including the oxygen molecules, continue to become denser equally one descends. Equally such, temperatures increase equally one descends rising to most 5°F (-fifteen°C) nearly the lesser of this layer.
The gases in the mesosphere are now thick plenty to slow downwardly meteors hurtling into the atmosphere, where they fire upwards, leaving fiery trails in the night sky. Both the stratosphere (next layer down) and the mesosphere are considered the middle atmosphere. The transition boundary which separates the mesosphere from the stratosphere is called the stratopause.
Stratosphere
The Stratosphere extends around 31 miles (l km) downward to anywhere from 4 to 12 miles (6 to twenty km) above the Earth'southward surface. This layer holds 19 percent of the atmosphere's gases just very niggling water vapor.
In this region the temperature increases with meridian. Heat is produced in the process of the germination of Ozone and this heat is responsible for temperature increases from an boilerplate -sixty°F (-51°C) at tropopause to a maximum of nigh five°F (-15°C) at the top of the stratosphere.
This increase in temperature with height means warmer air is located above cooler air. This prevents "convection" every bit there is no upward vertical movement of the gases. As such the location of the bottom of this layer is readily seen past the 'anvil-shaped' tops of cumulonimbus clouds.
Troposphere
Known as the lower temper almost all weather condition occurs in this region. The troposphere begins at the Earth's surface and extends from 4 to 12 miles (six to xx km) loftier.
The pinnacle of the troposphere varies from the equator to the poles. At the equator it is around 11-12 miles (18-20 km) high, at 50°N and l°S, 5½ miles and at the poles just nether four miles loftier.
As the density of the gases in this layer decrease with height, the air becomes thinner. Therefore, the temperature in the troposphere also decreases with acme in response. As one climbs college, the temperature drops from an boilerplate around 62°F (17°C) to -threescore°F (-51°C) at the tropopause.
Source: https://www.weather.gov/jetstream/layers
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