What are main characteristics of the troposphere?

Of all five layers, the troposphere has the highest density, greatest air pressure, 75% of the atmospheric mass, nearly all water vapor, and a temperature range from 62 to -60 degrees F. The temperature in the troposphere decreases steadily with altitude.

What are the main characteristics of the troposphere and stratosphere?

In the troposphere, the vertical air always flows upwards due to the presence of convection currents. But in the stratosphere, there is temperature inversion so there is no or little flow of vertical air current upwards. This is the reason for the calmness of the stratosphere.

What are the descriptions of troposphere?

The troposphere is the lowest layer of Earth’s atmosphere. Most of the mass (about 75-80%) of the atmosphere is in the troposphere. Most types of clouds are found in the troposphere, and almost all weather occurs within this layer.

Why is it called troposphere?

The term troposphere derives from the Greek words tropos (rotating) and sphaira (sphere) indicating that rotational turbulence mixes the layers of air and so determines the structure and the phenomena of the troposphere.

What are 4 facts about the thermosphere?

The thermosphere is the fourth layer of the Earth’s atmosphere that absorbs the sun’s radiation, making it very hot. The thermosphere puts on the auroras, a dazzling light show caused by colliding particles, and the thermosphere is also where satellites orbit the Earth. The thermosphere is one busy layer!

Why is troposphere the most important layer?

It is an unstable layer of the atmosphere. The vertical currents moving throughout the year make it unstable. All weather changes occur in this layer which are useful for the life on earth. Tropopause: The upper layer of troposphere is called tropopause.

What are 3 characteristics of the stratosphere?

The main characteristics of stratosphere are:
  • (a) There are no clouds or weather changes so it is safe for air travel.
  • (b) It extends from the top of troposphere up to 50 km above the surface of earth.
  • (c) This layer has a band of ozone gas which protects us from sun’s harmful ultraviolet rays.

What is the characteristic of thermosphere?

The thermosphere is the atmospheric region from ∼85 to ∼500 km altitude, containing the ionosphere. It is characterized by high temperature and large variability, in response to changes in solar ultraviolet radiation and solar-driven geomagnetic activity.

What are 2 facts about the troposphere?

The troposphere is between 5 and 9 miles (8 and 14 kilometers) thick depending on where you are on Earth. It’s thinnest at the North and South Pole. This layer has the air we breathe and the clouds in the sky. The air is densest in this lowest layer.

Why is the troposphere important?

Importance of troposphere to life on earth

The troposphere contains about 85% of the atmosphere’s total mass. Tropospheric processes, such as the water or hydrologic cycle (the formation of clouds and rain) and the greenhouse effect, have a great influence on meteorology and the climate.

How is the troposphere formed?

Tropospheric, or ground level ozone, is not emitted directly into the air, but is created by chemical reactions between oxides of nitrogen (NOx) and volatile organic compounds (VOC).

What are the 5 characteristics of atmosphere?

The five layers of the atmosphere are troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The troposphere is the stratum of the atmosphere where living beings exist. The gases contained in this layer are essential for photosynthesis and respiration.

What is the length of troposphere?

The troposphere begins at the Earth’s surface and extends from 4 to 12 miles (6 to 20 km) high. The height 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 50 °S , 5½ miles and at the poles just under four miles high.