Atmospheric Circulation And More :: essays research papers

The global energy balance and atmospheric motion mainly look on the circulation of the earths atmosphere. There is a hierarchy of motion in atmospheric circulation. for each one control can be broken down into smaller imperative factors. The global energy balance is an equal balance of short-wave radiation overture into the atmosphere and long-wave radiation going out of the atmosphere. This is called thermal equilibrium. The earth is at thermal equilibrium however, there can withdraw a prodigality or deficit of energy in parts of the heat budget. If you have a net radiation surplus warm post get out rise, and a net radiation deficit will make the air cool an fall. Air gets heated at the equator because of the inter tropical converging zone and rises to the poles. There the air is cooled and it floats back down to the equator where the process is repeated. another(prenominal) major contributing factor to the circulation of the air is due to the subtropical spicys. These s oarings comparable the ITCZ migrate during the different seasons. The idealized belt model is a colossal representation of the general circulation of the atmosphere. The equatorial belt of variable winds and calms ranges from 5 degrees jointure to 5 degrees south. This wind belt is characterized by weak winds and low press from the inter tropical convergence zone. As you go further northwestwardeasterly or south you encounter the Hadley Cells. Hadley cell circulation is caused by the movement of high pressure from the latitudes at 5 to 30 degrees north and 5 to 30 degrees south to low pressure aras around the equator. The movement of air from high pressure to low pressure causes convergence. This convergence generates the production of wind. The winds that are produced from this are the backup winds. The winds blow from a northwest direction in the Union hemisphere, and in the southern hemisphere the winds blow from a southeast direction. The trade winds are the largest win d belt. The westerlies, they lie between 35 and 60 degrees north and south latitude. The wind blows from the west , thus their name. The westerlies are in the Ferrell cell. tatty air from the gelid regions falls down and then is heated up and pushed upward with the westerlies. From 65 to 90 degrees north and south lie the polar easterlies. It exists because of the pressure gradient that is created by the temperatures.