The Desert

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The Desert

Your text hereAreas that receive less than 25 centimeters (10 inches) of rain annually are called deserts. Deserts are dry with sparse vegetation. Landforms tend to have angular features because the lack of rain results in minimal chemical weathering, and flash floods create steep‐walled scarps and gullies. There are few plants to protect the soil from the wind, so the soil is blown away to expose the rocky surface. Even in such a dry climate, most of the landforms are carved by the rare periods of heavy rainfall that result in flash floods, erosion, and sediment deposition.Deserts can form even on tropical coasts beside cold ocean currents, such as the west coast of South America. The currents cool the air, which then rises and warms as it moves over land, drawing up moisture that is later precipitated as the air moves farther inland.


Temperature and Precipitation of The Desert

The midlatitude desert climate is controlled by the same factors as the tropical desert climates, the influence of high pressure, interior position, and rain shadow location. The Takla Makan desert exhibits this influence well as it lies in a depression ringed by mountains preventing even the most meager amount of moisture to penetrate to this interior location.In the United States, the midlatitude desert lies in a region where high-level subsidence, especially pronounced in the summer, inhibits precipitation. During the winter, these regions are effectively cut off from moist air masses and cold high pressure dominates the region. The midlatitude desert climate is found in the Great Basin of the United States. Here, east facing slopes lie on the leeward sides of mountains in the rain shadow of the westerly winds.

Animals In The Desert

Facts About Deserts

where the desert is

Most large deserts are found away from the coasts, in areas where moisture from the oceans rarely reaches.Some deserts, however, are located on the west coasts of continents, such as the Namib in Africa, or the Atacama in Chile, forming coastal fog-deserts whose aridity is the result of cold oceanic currents.

Warm temperatures are one of the region’s defining characteristics. Regional temperatures run higher compared to northern climes because the subtropics receive more direct sunlight, and there is little water available to temper its power. In the Southwest, the cool season begins roughly in October and lasts through March, while the warm season smothers the other half of the year. According to the Western Regional Climate Center, in Arizona high temperatures are common throughout the summer at the lower elevations and temperatures over 125 degrees F have been observed in the desert area. The daily range between maximum and minimum temperatures sometimes runs as much as 50 to 60 degrees F during the drier periods of the year. During winter months, daytime temperatures may average 70 degrees F, with night temperatures often falling to freezing of slightly below in the lower desert valleys.

Latitude Ranges and How The Latitude Affect This Regions Climate

Climate Of The Desert

Most desert species have found remarkable ways to survive by evading drought. Desert succulents, such as cacti or rock plants (Lithops) for example, survive dry spells by accumulating moisture in their fleshy tissues. They have an extensive system of shallow roots to capture soil water only a few hours after it has rained. Additionally, many cacti and other stem-succulent plants of hot deserts present columnar growth, with leafless, vertically-erect, green trunks that maximize light interception during the early and late hours of the day, but avoid the midday sun, when excessive heat may damage plant tissues.

Winds, Landforms, and Ocean Currents Of The Deserst

Plants and Animals Of The Desert


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