What Is The Altitude Of The Mesopause


What Is The Altitude Of The Mesopause?

The mesopause at an altitude of 80–90 km (50–56 mi) separates the mesosphere from the thermosphere—the second-outermost layer of Earth’s atmosphere. This is the turbopause below which different chemical species are well-mixed due to turbulent eddies.

What is the altitude of the thermosphere layer?

The thermosphere is a layer of Earth’s atmosphere. The thermosphere is directly above the mesosphere and below the exosphere. It extends from about 90 km (56 miles) to between 500 and 1 000 km (311 to 621 miles) above our planet.

What is the altitude of the atmosphere?

It extends from Earth’s surface to an average height of about 12 km (7.5 mi 39 000 ft) although this altitude varies from about 9 km (5.6 mi 30 000 ft) at the geographic poles to 17 km (11 mi 56 000 ft) at the Equator with some variation due to weather.

What altitude does the stratosphere start?

The bottom of the stratosphere is around 10 km (6.2 miles or about 33 000 feet) above the ground at middle latitudes. The top of the stratosphere occurs at an altitude of 50 km (31 miles).

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What is the height and temperature of the mesopause?

tropopause: about 12-18 km about –60 stratopause: about 46-54 km about –2 to 0 mesopause: about 85-90 km about –90 4. The temperature increases in the stratosphere due to ozone layer capturing ultraviolet radiation. The temperature decreases in the mesosphere since there is no ozone and the amount of air is decreasing.

What is the altitude of exosphere?

2.5 The exosphere

The exosphere begins variously from approximately 2 300 000 ft to 3 280 000 ft above the surface where it interacts with the magnetosphere to space. Each of the layers has a different lapse rate defining the rate of change in temperature with height.

What is the altitude of the ozone layer?

about 9 to 18 miles
Most atmospheric ozone is concentrated in a layer in the stratosphere about 9 to 18 miles (15 to 30 km) above the Earth’s surface (see the figure below). Ozone is a molecule that contains three oxygen atoms.

What is an altitude in geography?

Altitude like elevation is the distance above sea level.

What is the atmosphere short answer?

The atmosphere is the blanket of gases which surrounds Earth. It is held near the surface of the planet by Earth’s gravitational attraction. Without the atmosphere there could be no life on Earth. … keeps the climate on Earth moderate compared to that of other planets.

Is between 80 and 110 km above the earth’s surface?

The thermosphere contains an appreciable concentration of elemental sodium located in a 10-kilometre (6.2 mi) thick band that occurs at the edge of the mesosphere 80 to 100 kilometres (50 to 62 mi) above Earth’s surface.

Why does the stratosphere get warmer with altitude?

The stratosphere reaches from the tropopause to a height of about 50 km. Temperature in the stratosphere rises with increasing altitude because the ozone layer absorbs the greater part of the solar ultraviolet radiation. The ozone layer is an absorbing agent that protects life on Earth.

What does the thermosphere do?

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!

What is the relationship between altitude and temperature in the stratosphere?

In the stratosphere temperature generally increases as altitude increases due to the increasing absorption of ultraviolet radiation by the ozone layer. In the mesosphere temperature decreases as altitude increases to as low as −93°C.

Where is the mesopause?

The mesopause is the point of minimum temperature at the boundary between the mesosphere and the thermosphere atmospheric regions.

How thick is the mesopause?

The mesopause thickness defined here as the altitude range where the temperature is within 5 K of the minimum increases dramatically from approximately 7 km in winter to over 16 km in summer.

What is the pressure of the mesopause?

0.01 millibars

This layer is the mesosphere which at its top (the mesopause) has an atmospheric pressure of only 0.01 millibars (that is only 1/100 000th of the surface pressure).

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What is the pressure in the exosphere?

about 0.0007 atmospheres

The exosphere’s composition varies from oxygen carbon dioxide hydrogen and helium at its base to just hydrogen and helium in the outer limits. The exosphere’s pressure is about 0.0007 atmospheres at its base to virtually nothing in the outer reaches.

What’s the relationship between temperature and altitude in the exosphere?

The lower boundary of the exosphere is called the exobase. It is also called the ‘critical altitude’ as this is the altitude where barometric conditions no longer apply. Atmospheric temperature becomes nearly a constant above this altitude.

Is there gravity in the exosphere?

Gravity pulls the majority of the molecules in the exosphere down towards Earth’s lower atmospheric levels. However due to the exosphere’s low gravity and pressure some do make it into outer space. Solar wind storms compress the exosphere causing pressure to build up.

Between what altitude is ozone layer found in highest concentration?

Most ozone (about 90%) is found in the stratosphere which begins about 10–15 kilometers (km) above Earth’s surface and extends up to about 50 km altitude. The stratospheric region with the highest concentration of ozone between about 15 and 35 km altitude is commonly known as the “ozone layer” (see Figure Q1-2).

What is ozone layer Class 10?

“The ozone layer is a region in the earth’s stratosphere that contains high concentrations of ozone and protects the earth from the harmful ultraviolet radiations of the sun.”

At which altitude can the greatest concentration of ozone be found?

The peak concentration of ozone occurs at an altitude of roughly 32 kilometers (20 miles) above the surface of the Earth. At that altitude ozone concentration can be as high as 15 parts per million (0.0015 percent).

What is altitude in geography Brainly?

the height of an object or point in relation to sea level or ground level.

How do you find altitude in geography?

What is altitude and latitude?

Latitude refers to the distance of a location on Earth’s surface from the equator in relation to the North and South poles (e.g. Florida has a lower latitude than Maine) altitude is defined as how high a location is above sea level (think: a city in the mountains has a high altitude).

What is atmosphere Class 9?

Ans: Atmosphere is the veil of odourless tasteless and colourless gases dust particles and water vapour surrounding the earth which forms a protective boundary between the outer space and the biosphere. It is composed of different gases in different volumes.

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What is atmosphere class 6th?

Answer: Atmosphere is a blanket of air surrounding the Earth’s surface. Atmosphere contains oxygen which is essential for animals to breathe and get energy from food.

Is the atmosphere hot or cold?

Some parts of the atmosphere are hot or cold depending on height. Starting from the surface and climbing straight up the air gets colder in the troposphere but then it becomes hotter higher in the stratosphere. These changes of temperature are divided into layers. These are like layers of an onion.

Why is the ISS in the thermosphere?

The heat that won’t keep you warm

If you were to hang out in the thermosphere though you would be very cold because there aren’t enough gas molecules to transfer the heat to you. … The thermosphere is home to the International Space Station as it orbits Earth. This is also where you’ll find low Earth orbit satellites.

At what altitude does the mesosphere end?

about 50 to 85 km
The mesosphere is a layer of Earth’s atmosphere. The mesosphere is directly above the stratosphere and below the thermosphere. It extends from about 50 to 85 km (31 to 53 miles) above our planet.

Why is the thermosphere so hot?

The thermosphere absorbs much of the radiation that Earth receives from the sun leaving only a fraction to actually reach the surface. Ultraviolet radiation visible light and high-energy gamma radiation are all absorbed by the thermosphere which causes the few particles present to heat up considerably.

Why does temperature increase with altitude in the stratosphere quizlet?

The temperature increases with increasing altitude in the stratosphere because there’s a high concentration of ozone molecules. These ozone molecules absorb UV rays from the Sun and then radiates this energy in the form of infrared waves. Nearby gases can absorb this infrared energy and increase in temperature.

What layer of the atmosphere is the hottest?

The thermosphere
The thermosphere is often considered the “hot layer” because it contains the warmest temperatures in the atmosphere.

What is the temperature of the stratosphere?

Within the stratosphere temperatures increase with altitude (see temperature inversion) the top of the stratosphere has a temperature of about 270 K (−3°C or 26.6°F).

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