Friday, March 14, 2014

Global and Local Winds in Ethiopia


The latitude and longitude of Ethiopia is 8.3000°N, 39.1167°E and it is located in the northern hemisphere. Ethiopia is just slightly above the equator and so it belongs to the Hadley cell. Because it is part of the northern Hadley cell, it experiences northeast trade winds, meaning that the wind blows in a northeast to southwest direction.

Ethiopia is located in a Low-pressure belt. It is slightly above the Intertropical Convergence Zone. Ethiopia is located near the Doldrums since it is in the Hadley cell. In this area, the winds are light and the area is general humid, which makes sense since we are talking about the African continent. Ethiopia also experiences a fair amount of winds due to the fact that it is in between high and low pressure areas, coming from areas around South Africa and areas around China, respectively. The winds are moving from the South African area and China with Ethiopia right in between.


Sources: http://www.atmos.umd.edu/
http://www.atmos.umd.edu/~meto200/3_20_03_lecture_files/slide0002_image067.gif
 http://tle.westone.wa.gov.au/
  http://tle.westone.wa.gov.au/content/file/eee657a8-0bf7-fea2-f67b-be1d62609242/1/1251_Geography_3b.zip/content/001_natural_systems/images/pic016.gif

 Ethiopia does have mountains; in fact the capital city of Addis Ababa experiences cool weather contrary to the belief that all African countries are humid, due to the fact that it is at a high elevation. Five winds or breezes associated with mountains include eddies, mountain breeze, valley breeze, katabatic winds, and Chinook (Foehn) winds. Eddies occur where wind must pass through an obstacle, in this case mountains. Therefore, Ethiopia experiences eddies. Mountainous areas like Addis Ababa experience mountain and valley breezes just because of the fact that they are mountainous areas. However I do not think that Ethiopia experiences katabatic winds because the wind does not get so cold as to form an ice sheet.

Ethiopia is a landlocked country so it does not have a coastline, however, is it a good distance from the Red and Arabian Seas, only being blocked by Djibouti, Eritrea, and Somalia. The land and sea breezes are associated with coastlines. Ethiopia experiences land and sea breezes, however not evenly because it is a landlocked country. However, it is within a reasonable distance from large bodies of water to experience these winds at certain parts of the country.

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