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Dry ( Arid, Semi- Arid)

catalina galano

on 19 October 2012

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Transcript of Climate

ARID, SEMI-ARID Areas of the planet with dry climates A desert climate is a climate that does not meet the criteria to be classified as a polar climate, and in which precipitation is too low to sustain any vegetation at all.
An area that features this climate usually experiences lees than 250mm per year of precipitation and in some years may experience no precipitation at all.Sometimes, an area may experience more than 250mm of precipitation annually,but is considered a desert climate because the region loses more water via evapotranspiration.
There fare usually two or three variations of a desert climate: a hot desert climate, a cold desert climate and,sometimes, a mild desert climate. Introduction Is typically found in temperate zones.The Gobi desert is a classic example of this climate.
Cold desert climate are typically found at higher altitudes than hot desert climate climate, and are usually drier than hot desert climates. Annual average temperature exceeds 18ºC and daily temperatures have strong oscillations between day and night.
There are some deserts that exceeds 55ºC in the shadow. Temperatures - Are scarce.
- Are very irregular.
- Are very concentrated.
The rivers only have water after the precipitations. PRECIPITATIONS DRY CLIMATES Hot desert climates Are typically found under the subtropical ridge where there is largely unbroken sunshine for the whole year due to the stable descending air and high pressure.
In many locations featuring a hot desert climate, maximum temperatures of 40ºC to 45ºC are not uncommon in summer. Cold desert climate Hot desert climate Cold desert climate
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