Tri Cellular Meridional Circulation Of The Atmosphere
Post on 08,March 2016   5:00 AM
By - PolyEyes Staff
views 3340
Bookmark and Share

The Modern concept of the mechanism of general circulation of the atmosphere thus includes both, the horizontal and vertical components of atmospheric circulation.

Three cell model of meridional circulation of the atmosphere, where is it is believed that there is cellular circulator of the air at each meridian (latitude).

Surface wind blow from high pressure area to low pressure areas but in the upper atmosphere the general direction of air circulation is opposite to the direction of surface winds. 

Each meridian has three cells of air circulation in the noryhen hemisphere.

  • Tropical cell/Hadley cell.
  • Polar front cell/ middle latitude cell/ ferrel cell.
  • Polar/Sub-polar Cell.

Tropical Cell: It is also called Hadley cell. High rate of heating at equator resulting in the ascend of wind. These ascending warm and moist wind release latest heat after condensation which causes further ascend of the winds. After, reaching the height of 8 to 12 kilometers in the troposphere over the equator diverse northward and southward.

Surface winds/trade winds blow from subtropical high pressure belt to equatorial low pressure belt in order to replace the ascending air at the equator. 

Antitrade (upper air mourning in direction opposite of surface winds) descend near 30 degree - 35 degree latitudes to cause subtropical high pressure belt. After, ascending they blow towards equator where they again heated up and ascend. 

Polar Front Cell/ Mid Latitude Cell: Winds blow from subtropical high pressure belt but winds because atmost westerly due to cariolis force. Regularity and continuity of westerlies are frequently disturbed by temperature cyclones, migratory extratropical cyclones and anti-cyclones.

Warm air ascends along the polar front which in more regular and continuous in the middle troposphere. 

Polar Cell: Atmospheric circulation prevailing between 60 degree and poles. Cold winds, knows as polar easterlies, blow from polar high pressure areas to sub-polar or mid-latitude low pressure belt. 

Central direction of surface polar winds become easterly (east to west) due to coridis force. 

The winds ascend upward due to the rotation of the earth at the subpolar low pressure belt and after reaching middle troposphere they turn poleward and equatorward.

The poleward upper air descends at the poles and reinforce the polar high pressure. Thus complete polar cell in formed.


Back
Comments ( 0 )
Add a comment
Your name: *
E-mail:
The content of this field is kept private and will not be shown publicly.
Title:


Related Articles

Prelims Online Test Series
UPSC 2017 Prelims Test Series Registration Link

UPSC REGISTRATION
JPSC 2017-18 PRELIMS Test Series

REGISTRATION
PolyEyes Recent Updates
Most Recent Comments
. . , , . . , . . , , , . , , ( ) , , . vk.com/sniat_kvartiru_v_rostove - vk.com/sniat_kvartiru_v_rostove - https://vk.com/sniat_kvartiru_v_rostove - , , , : , , . 1. , . , . ? - 3-5 % , . . , .
by LarryCreBy
안전놀이터총판♬¬▷((Bgg-777 . Com))◁-♬¬카톡:come99메이저사이총판 사다리양방 안전놀이터총판♬¬▷((Bgg-777 . Com))◁-♬¬카톡:come99메이저사이총판 사다리양방 /바카라사이트/홀짝게임/온라인카지노사이트/온라인바카라/♬¬▷((Bgg-777 . Com))◁-♬¬카톡:come99메이저리그픽/토토추천/온라인카지노사이트 안전놀이터총판♬¬▷((Bgg-777 . Com))◁-♬¬카톡:come99메이저사이총판 사다리양방/바카라사이트/홀짝게임/온라인카지노사이트/온라인바카라/♬¬▷((Bgg-777 . Com))◁-♬¬카톡:come99메이저리그픽/토토추천/온라인카지노사이트 안전놀이터총판♬¬▷((Bgg-777 . Com))◁-♬¬카톡:come99메이저사이총판 사다리양방 /바카라사이트/홀짝게임/온라인카지노사이트/온라인바카라/♬¬▷((Bgg-777 . Com))◁-♬¬카톡:come99메이저리그픽/토토추천/온라인카지노사이트 안전놀이터총판♬¬▷((Bgg-777 . Com))◁-♬¬카톡:come99메이저사이총판 사다리양방 /바카라사이트/홀짝게임/온라인카지노사이트/온라인바카라/♬¬▷((Bgg-777 . Com))◁-♬¬카톡:come99메이저리그픽/토토추천/온라인카지노사이트 안전놀이터총판♬¬▷((Bgg-777 . Com))◁-♬¬카톡:come99메이저사이총판 사다리양방 /바카라사이트/홀짝게임/온라인카지노사이트/온라인바카라/♬¬▷((Bgg-777 . Com))◁-♬¬카톡:come99메이저리그픽/토토추천/온라인카지노사이트
by Allenhar

Sir, will bpsc come out with next notificaiton in june 2017 itself or in june 2018 pls?

by Pankaj

It is totally non sense process.b coz it not too tuff for an it splist ias officer n it manger whuch r both IIT product

by Tripurari

I am in ebc category and got 86 in bpsc 60 -62 .may I prepare for mains ?

by Anil Kumar

sir ,

as per BPSC answer key i socred 87 in General category... is there any chance that i will qualify the prelims.

by Raman
Get RSS Feeds
  • All Stories
  • Recently Published Stories
  • Most Viewed Stories
  • Just In Photos
  • Most Viewed Photos