|1-3: In English||1-3: En Español|
(Isto tem que ser feito antes da aula.)
Imagens da aula
We saw that the earth moves in an elliptical orbit around the sun and that the closest distance is at December and the maximum distance is at June. More energy per square meter reaches the low latitude regions. Energy may be transmitted from the tropics toward the polar regions as thermal energy or as latent heat. The transport of heat may be by the atmosphere or by the ocean currents. The temperature decreases with height at troposphere and up to tropopause, that is about 8km at poles and 17 km at tropics, the temperature increases with height (at stratosphere).
In the tropical area, the warm less dense air rises and at medium latitudes (about 30 degree latitude) the air subsides, that creates the sub-tropical high-pressure regions. The Coriolis force that is created by the rotation of the earth deflects the air flux toward the right in the North Hemisphere and toward left at the South Hemisphere. This "apparent" force creates a predominant westerly wind belt at mid-latitudes and the trade winds near the equator.
|Hidore, John J. and John E. Oliver, 1993: Climatology: An Atmospheric Science. Macmillan Publishing Co.,NY. 423 pp.|
|Houghton, J. T., L. G. Meira Filho, B. A. Callander N. Harris, A. Kattenberg, and K. Maskell, 1996: Climate Change 1995. The Science of Climate Change. Cambridge University Press, 59-64.|
|Lutgens, Frederick K., and Edward J. Tarbuck. 1986: The Atmosphere. An Introduction to Meteorology. Prentice Hall Inc., Englewood Cliffs, NY. 492 pp.|
|Climatic Extremes and Weather Events-- Maps, Tables, Reports, etc.|
|Global Summary of the Day, defasagem de 6 a 8 semanas nas estatísticas, incluindo gráficos. (cortesia de National Climatic Data Center)|
|Monthly Mean Temperatures Animation (cortesia de Sustainable Development Dimensions)|
|National Climatic Data Center Best of the Rest - Weather Links|
|The National Drought Mitigation Center|
|National Weather Service Links|
|The Weather Calculator|