Layers of the Atmosphere (Animation)

layers of the atmosphere the Earth's atmosphere is  the layers of the gases which protects the earth   from the radiations and cosmic rays coming  from the outer space this atmosphere acts   as a blanket because it keeps the average  temperature of the earth nearly constant   Earth's atmosphere can be divided into five  main layers these layers are the troposphere the stratosphere the mesosphere the thermosphere and the exosphere the troposphere Trampas means change this  layer gets its name from the weather that   is constantly changing and mixing up the  guesses in this part of our atmosphere this layer is the closest to Earth's  surface on average the troposphere   extends from the ground to about  12 kilometers were 7.5 miles I the troposphere contains about 75%  of all of the air in the atmosphere   and almost all of the water vapor  which forms clouds and rain in this   layer air is made up of approximately  78% nitrogen 21% oxygen and 1% argon   with small amounts of additional gases  including water vapor and carbon dioxide hot-air balloons fly within the troposphere you the stratosphere Scrat means layer this layer of our atmosphere  has its own set of layers the boundary between   the stratosphere and the troposphere is called the  tropopause it is the region where airplanes fly   the stratosphere layer extends from the  tropopause to about 50 kilometers or 32   miles above the Earth's surface this layer  contains a thin layer of ozone molecules   which forms a protective layer and absorbs  harmful ultraviolet radiation from the Sun the high-altitude weather balloons flying  into the stratosphere for monitoring   atmospheric conditions and climate research  the mesosphere miso means middle this layer   is located above the stratosphere and below  the thermosphere it is the third layer in   our atmosphere which is 35 kilometers or  22 miles thick the transition boundary   which separates the mesosphere from the  stratosphere is called the stratopause in the mesosphere fewer air molecules  to absorb incoming electromagnetic   radiation from the Sun most meteors  burn up in this set miss ferric layer a meteor is piece of rock or matter  that has been broken off in space   and travels through the atmosphere when  they cross the mesosphere friction and   momentum caused the meteor to burn up  and appear as a light crossing the sky the thermosphere Thermo means  heat this layer has extremely   high temperatures and located above  the mesosphere and below the exosphere the boundary between the mesosphere  and the thermosphere atmospheric   regions is called mesopause it is the  coldest part of Earth's atmosphere the thermosphere extends from the mess it was   to 700 kilometres of 435 miles  above the surface of the earth the thermosphere is the thickest layer in the  atmosphere only the lightest gases mostly oxygen   helium and hydrogen are found here the aurora and  satellites mostly occur in this layer an aura is   a natural light display in the sky particularly  in the high latitude regions that is caused by   the collision of energetic charged particles  with atoms in the high-altitude atmosphere   the exosphere EXO means outside the exosphere represents the  outermost layer of Earth's atmosphere it extends   from the top of the thermosphere to 10,000  kilometers or 6214 miles above Earth's surface in this lair atoms and molecules escape into space  and higher altitude satellites orbit our planet temperature versus height near the surface of  the earth the average temperature is 15 degrees   Celsius and the temperature gradually decreases  to minus 56 degrees Celsius as altitude increases   then the temperature remains constant below  ozone layer in the stratosphere region from   the ozone layer the temperature progressively  increases to negative 2 degrees Celsius then the temperature ranges from negative 2  degrees Celsius to negative 92 degrees Celsius   at the upper boundary of mesosphere after  then the temperature rises from negative 92   degrees Celsius to 1,200 degrees Celsius  near the upper boundary of thermosphere why it happens during the day a portion of the  incoming of the radiant energy   from the Sun passes through the atmosphere  is absorbed and warms the Earth's surface then the Heat's reflected back from the   ground to the tropospheric air by  conduction and convection process the temperature in the troposphere  gradually decreases with increasing   altitude until the tropopause is reached you the stratosphere is  very dry and clouds are rare as we know ozone is concentrated in this  part of the atmosphere this ozone absorbs   shortwave ultraviolet radiation from  the Sun and converts them into heat   more radiation is absorbed at higher altitudes   compared to the lower stratosphere so  the temperature increases with height the mesosphere has the coldest temperatures  in the atmosphere it becomes cold enough to   freeze water vapor in its atmosphere into  ice clouds the air density in the mesosphere   is low then in the stratosphere below due  to less air particles not enough heat is   absorbed which eventually leads to a colder  temperature apart from that carbon dioxide   in the mesosphere also helps in making  this layer cold due to its cooling effect carbon dioxide molecules absorb heat energy when  they bounce off other molecules the carbon dioxide   releases some of that energy as photons in a  process called radiative emission some of those   photons travel upwards carrying heat away from  the mesosphere thus temperature in the mesosphere   keeps dropping with increase in altitude until  it reaches about minus 100 degrees Celsius   the thermosphere has extremely high  temperatures within the thermosphere   temperatures rise continually to well  beyond 1000 degrees Celsius the source   of the thermosphere heat is radiation emitted  by the Sun the thermistor 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 since there  is little to no atmospheric gases above the   thermosphere there is no absorption of the heat  from solar radiation and so temperatures so are the exosphere is almost a vacuum the air  is very very thin air when air is thin it   doesn't transfer much heat to objects in  the air even if the air is very very hot   the temperature in the exosphere varies greatly  and can range from zero to over 1,700 degrees   Celsius it is colder at night and much hotter  during the day if you enjoyed this video then make   sure you subscribe and hit the notifications  bell so you don't miss a single video

Channel: KINETIC SCHOOL

Views: 677,120

Keywords: Layers of the Atmosphere, Troposphere, stratosphere, mesosphere, thermosphere, exosphere, ozone layer, Earth's atmosphere, What are the layers of the atmosphere, the atmosphere, the atmosphere for kids, what is atmosphere, how atmosphere forms, K12, NCERT, ICSE, IIT-JEE, NEET, corrosion chemistry, galvanic cells, voltaic, corrosion, Layers of the atmosphere in hindi, air and atmosphere, environmental chemistry, kinetic school, Layers of the earth, earth's layer, Crash Course, Tufts ENVS

Id: KXf39bQH6iE

Length: 15min 20sec (920 seconds)

Published: Fri Apr 17 2020