Harmattan: Difference between revisions

Latest revision as of 14:22, 20 February 2012

harmattan

(Also spelled harmatan, harmetan, hermitan.) A dry, dust-bearing wind from the northeast or east that blows in West Africa especially from late November until mid-March.

It originates in the Sahara as a desert wind and extends southward to about 5°N in January and 18°N in July. It is associated with the high pressure area that lies over the northwest Sahara in winter and the adjoining part of the Atlantic in other seasons. In summer the cooler onshore southwest monsoon undercuts it, but the harmattan continues to blow at a height of about 2 km (3000–6000 ft) and sometimes deposits dust on ships at sea. This conflict of winds causes the so-called West African tornadoes.
See doctor.

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-<div class="definition"><div class="short_definition">(Also spelled harmatan, harmetan, hermitan.) A dry, dust-bearing [[wind]] from the northeast  or east that blows in West Africa especially from late November until mid-March.</div><br/> <div class="paragraph">It originates in the Sahara as a [[desert wind]] and extends southward to about 5&deg;N in January  and 18&deg;N in July. It is associated with the high pressure area that lies over the northwest Sahara  in winter and the adjoining part of the Atlantic in other seasons. In summer the cooler onshore  [[southwest monsoon]] undercuts it, but the harmattan continues to blow at a height of about 2  km (3000&ndash;6000 ft) and sometimes deposits [[dust]] on ships at sea. This conflict of winds causes the  so-called West African tornadoes. <br/>''See'' [[doctor]].</div><br/> </div>
+<div class="definition"><div class="short_definition">(Also spelled harmatan, harmetan, hermitan.) A dry, dust-bearing [[wind]] from the northeast  or east that blows in West Africa especially from late November until mid-March.</div><br/> <div class="paragraph">It originates in the Sahara as a [[desert wind]] and extends southward to about 5&#x000b0;N in January  and 18&#x000b0;N in July. It is associated with the high pressure area that lies over the northwest Sahara  in winter and the adjoining part of the Atlantic in other seasons. In summer the cooler onshore  [[southwest monsoon]] undercuts it, but the harmattan continues to blow at a height of about 2  km (3000&ndash;6000 ft) and sometimes deposits [[dust]] on ships at sea. This conflict of winds causes the  so-called West African tornadoes. <br/>''See'' [[doctor]].</div><br/> </div>
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