PPT-Deserts & Winds:

Deserts amp Winds Fluvial and Eolian Processes in Arid Zones Why Do Deserts Exist Desert any spot on Earth that receives less than 25 cm 10 in rain per year Semidesert 2550 cm 1020 in. By:Anthony Aragon . The Desert . Deserts cover about one fifth of the earth’s land area. The desert is a harsh environment with very little rainfall and extreme temperatures.. What makes a Desert?. WHAT IS A DESERT?. Deserts. cover more than one fifth of the . Earth's . land . and they are found on every continent. . Deserts. . can . be . "hot" or "cold". . Deserts. . receive less than 10 inches of precipitation a year. Lack of water creates a survival problem for all . Climate Change. Kelly Barnhart. Global Change Biology. February 16, 2016. Pictures from http://w3.marietta.edu/~. biol. /biomes/. desert.htm. Deserts. Environmental extremes. Arid and hot. Large daily temperature . i. What causes wind? . Caused by a difference in air pressure due to. unequal heating of the atmosphere.. Winds are created by. ….. • . Heating the air, decreases pressure (warm. air rises creating a low pressure). One section splits around FL =winds split around FL. Minimum winds & moisture flux in Midwest & Southeast US. Converging winds along Southeast Atlantic coast . =. precipitation. June 85. BH elongates in E-W direction. Lori Kowaleski-Jones. Department of Family and Consumer Studies. University of Utah. Food Desert. Broadly conceptualized . as limited access to affordable and nutritious foods, particularly in low income areas. . . introduction. Deserts are all over the world but not in Europe.Not all deserts are sandy. The Antarctica desert is the biggest ice desert in the world.The Sahara desert is the biggest sandy desert in the world.. Hot deserts and cold deserts. Ozlan.net. Before you can create any desert you have to understand how to make the foundation of the desert, this is the base,. The bases are divided into . Pastry which includes Puff Pasty, short sweet paste and choux . Department of Family and Consumer Studies. University of Utah. Food Desert. Broadly conceptualized . as limited access to affordable and nutritious foods, particularly in low income areas. Food . Environment . There are four major types of deserts. There are four major types of deserts . Hot and Dry. Semiarid.  Coastal. Cold. Semiarid. The summers are moderately long and dry, while the winters normally bring little rainfall. Summer temperatures usually average between 69-80° F.. Deserts Adiabatic Warming and Cooling Warm, moist air masses forced up and over mountains experience decreasing atmospheric pressure and, as a result, expand. This process causes the expanding air mass to release a portion of its latent heat, resulting in a decrease in air temperature. This is called adiabatic cooling. Depending on the height to which the air is forced the air mass temperature may drop below the dew point, resulting in the formation of water droplets and precipitation in the form of rain or snow. As a result, when the air mass reaches the summit, it is cold and dry. Crossing the summit, the air mass descends and compresses. This produces a corresponding increase in atmospheric pressure and, as descent continues, the compressing air mass begin to warm. This is a called adiabatic warming. However, because the moisture was released during the cooling stage, the descending air mass is warm and dry. If sufficient moisture is removed the descending air mass could be dry enough to create a rain shadow effect where precipitation is much lower than surrounding areas. In some cases a rain shadow desert can form. Deserts Adiabatic Warming and Cooling Warm, moist air masses forced up and over mountains experience decreasing atmospheric pressure and, as a result, expand. This process causes the expanding air mass to release a portion of its latent heat, resulting in a decrease in air temperature. This is called adiabatic cooling. Depending on the height to which the air is forced the air mass temperature may drop below the dew point, resulting in the formation of water droplets and precipitation in the form of rain or snow. As a result, when the air mass reaches the summit, it is cold and dry. Crossing the summit, the air mass descends and compresses. This produces a corresponding increase in atmospheric pressure and, as descent continues, the compressing air mass begin to warm. This is a called adiabatic warming. However, because the moisture was released during the cooling stage, the descending air mass is warm and dry. If sufficient moisture is removed the descending air mass could be dry enough to create a rain shadow effect where precipitation is much lower than surrounding areas. In some cases a rain shadow desert can form. Compare & contrast an idealized hurricane life cycle with a real life example from the past. Understand how the angle of approach of a storm impacts regional damage. Objectives. Hurricane Structure. Category 5? typical gusts over open flat land of more than 280km/h. These winds correspond to the highest category on the Beaufort Scale. Extremely dangerous with widespread destruction. One of the