The ozone layer is found within the stratosphere between 15 to 30 km (9 to 19 miles) altitude. The thickness of the ozone layer varies by the season and also by latitude. The ozone layer is extremely important because ozone gas in the stratosphere absorbs most of the Sun’s harmful ultraviolet (UV) radiation.
Which layer is 15 km down?
The ozone layer is centered at an altitude between 10-15 miles (15-25 km).
Which layer of the atmosphere is 15 kilometers up into?
The atmosphere is divided into five different layers, based on temperature. The layer closest to Earth’s surface is the troposphere , reaching from about seven and 15 kilometers (five to 10 miles) from the surface. The troposphere is thickest at the equator, and much thinner at the North and South Poles.
Which layer of the atmosphere extends to 16 km?
troposphere extends from 0 km to 16 km (0 mi. to 9 mi.)
What layer of the atmosphere is 10 km?
Troposphere . The troposphere is the lowest layer of our atmosphere. Starting at ground level, it extends upward to about 10 km (6.2 miles or about 33,000 feet) above sea level.
Which is the coldest layer of our atmosphere?
Located between about 50 and 80 kilometers (31 and 50 miles) above Earth’s surface, the mesosphere gets progressively colder with altitude. In fact, the top of this layer is the coldest place found within the Earth system, with an average temperature of about minus 85 degrees Celsius (minus 120 degrees Fahrenheit).
What is the hottest layer of the atmosphere?
The thermosphere is often considered the “hot layer” because it contains the warmest temperatures in the atmosphere. Temperature increases with height until the estimated top of the thermosphere at 500 km.
Which is the coldest layer?
Mesosphere , altitude and temperature characteristics
The top of the mesosphere is the coldest area of the Earth’s atmosphere because temperature may locally decrease to as low as 100 K (-173°C).
Do planes fly in the ozone layer?
Planes fly in the second layer of the atmosphere called the stratosphere. The stratosphere is the second layer of the atmosphere and the one where the ozone layer is formed and where the planes fly in. The temperatures in the stratosphere are inverse to those in the troposphere, meaning they rise with altitude.
What layer is closest to Earth?
The layer closest to Earth’s surface is the troposphere , reaching from about seven and 15 kilometers (five to 10 miles) from the surface. The troposphere is thickest at the equator, and much thinner at the North and South Poles.
What is the uppermost limit of the atmosphere?
The exosphere is the outermost layer of Earth’s atmosphere (i.e. the upper limit of the atmosphere). It extends from the thermopause, at the top of the thermosphere at an altitude of about 700 km above sea level, to about 10,000 km (6,200 mi; 33,000,000 ft), where it merges into the solar wind.
What are the 7 layers of earth?
If we subdivide the Earth based on rheology, we see the lithosphere, asthenosphere, mesosphere, outer core, and inner core . However, if we differentiate the layers based on chemical variations, we lump the layers into crust, mantle, outer core, and inner core.
What are the 7 layers of atmosphere?
- The Troposphere. This is the lowest part of the atmosphere – the part we live in. ...
- The Stratosphere. This extends upwards from the tropopause to about 50 km. ...
- The Mesosphere. The region above the stratosphere is called the mesosphere. ...
- The Thermosphere and Ionosphere. ...
- The Exosphere. ...
- The Magnetosphere.
Which is the most abundant gas in the atmosphere?
The most abundant naturally occurring gas is Nitrogen (N 2 ) , which makes up about 78% of air. Oxygen (O 2 ) is the second most abundant gas at about 21%. The inert gas Argon (Ar) is the third most abundant gas at .
Why mesosphere is the coldest layer?
The mesosphere is the coldest layer because it has essentially nothing to heat it . The atmosphere is primarily heated from below, and the troposphere is warmed by that mechanism. ... Thus, the mesosphere lacks radiation absorption from below and above, making it the coldest layer.
What separates the layers of the atmosphere?
The tropopause is at the top of the troposphere and separates it from the stratosphere. As air rises through the troposphere it cools due to reduced air pressure (Gay-Lussac’s law).
