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What is the troposphere heated by?
the sun
The uneven heating of the regions of the troposphere by the sun ( the sun warms the air at the equator more than the air at the poles )causes convection currents, large-scale patterns of winds that move heat and moisture around the globe.
What is the troposphere most influenced by?
Planetary boundary layer. The lower levels of the troposphere are usually strongly influenced by Earth’s surface. This sublayer, known as the planetary boundary layer, is that region of the atmosphere in which the surface influences temperature, moisture, and wind velocity through the turbulent transfer of mass.
What are 3 ways that the troposphere is heated?
Convection currents move heat throughout the troposphere. Heat is the transfer of thermal energy from a hotter object to a cooler one. Heat is transferred in three ways: radiation, conduction, and convection.
What are facts about the stratosphere?
Interesting Stratosphere Facts: The stratosphere is one of five layers of the atmosphere. The word ‘stratosphere’ is derived from the word ‘strato’ meaning layer, and ‘sphere’ which is earth’s shape. The stratosphere accounts for approximately 24% of the earth’s total atmosphere.
What is the temperature range of the troposphere?
At middle latitudes, tropospheric temperatures decrease from an average of 15°C (59° F) at sea level to about −55°C (−67° F) at the tropopause. At the poles, the tropospheric temperature only decreases from an average of 0°C (32° F) at sea level to about −45°C (−49° F) at the tropopause.
What is the air pressure in the troposphere?
Troposphere thickness is about 8 km above the two poles and 18 km at the equator so, average troposphere thickness = (8+18 / 2) = 13 km. The atmospheric pressure in this layer decreases as we go up until it becomes 100 Mb nearly at its top 100 Mb = 0.1 bar (0.1 of the normal atmospheric pressure at sea level).
How thick is 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.