Crazy Weather glog Fpm333

by FrancisMcDonald
Last updated 6 years ago

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Crazy Weather glog Fpm333

Crazy Weather

Weather Instruments That Measure AirTheremometer- Measures temperatureBarometer-Measures air pressureSling Phychrometer-Measures relative humidityRain Gauge- Measures the amount of air that has fallen over a specific time periodWind Vane- Determines direction from which the wind is blowingAnemometer- Measures wind speedWeather Map- Indicates atmospheric coditions above a large portion of the earths surfaceWeather baloon-Measures weather conditions higher up in the atmosphereWeather Satillites-Used to photograph & track large-scale air movements

Prevaling Winds In the mid-Latitudes, winds that blow toward the poles are turned toward the east by the Coriolis effect. Since they blow from west to east they are called prevaling westerlies. The prevaling westerlies blow generally from the southwest between 30 degrees & 60 degrees north latitudes & from the northwest between 30 degrees & 60 degrees south latitudes. The prevaling westerlies play an important part in the weather of the United States.

Earths Atmosphere There are four main layers in the earths atmosphere. In order from the earth up to space they go Troposphere, Stratosphere, Mesosphere & last Thermosphere. These layers have different gases & different temperatures in them. If you were to ride through all the layers of the atmosphere from earth up, you would notice the changes in gases, temperature & electical & magnetic forces as you went. The Troposhpere is the first layer where all the weather occurs. Next layer is the Stratosphere. The Stratoshpere is very cold & it also includes Ozone in it. Then there is the Mesosphere. The mesosphere is also very cold & it pretects earth from meteroids. Last there is the Theremosphere. The Thermoshere is the hotest layer in the atmoshpere. Also the air is very thin & it is practically space. At the bottom of the atmoshere there is high air pressure & the air is thick. If you went up to the top of the atmoshpere the air pressur would become very low & hardly any air at all. Also the thickness of the air would decrease as well.

Water CycleWater vapor enters the air by evaporation from the oceans & other bodies of water. Evaporation is the process by which water molecules in liquid water escape into the air as water vapor. Water vapor is also added to the air by living things. Water enters the roots of plants, rises to the leaves & is released as water vapor. As part of the water cycle, some of the water vapor in the atmoshpere codenses from clouds. Rain & other forms of precipitation fall from the clouds toward the surface. The water then runs off the surface, or moves through the ground, back into the ocean, lakes, & streams.HumidityHumidity is a measure of the amount of water vapor in the air.

Air Fronts/Masses The names of air fronts are given based on which air mass is winning. A cold front is when a cold airmass is winning(Blue). A warm airfront is when a warm air mass is winning(Red).A Stationary air front is neither air mass is winning & they are both equal(Blue & Red). Occluded front is when the cold completley overtakes the warm front(Purple). Air masses are named for where they are formed. There is Continental, Maritime, Tropical, Polar. Continental is formed over land & is dry& arid. Maritime is formed over water & it is wet & moist. Tropical is formed over lower latitudes like the equator & is warm & hot. Last Polar is formed over higher latitudes like the poles & is cold & cool.

Wind SpeedWind speed is measured with an anemometer. An anemometer has three or four cups mounted at the ends of the spokes that spin on an axle. The force of the wind against the cups turn the axle. A speedometer attached to the axle shows the wind speed.Wind speed, or wind velocity, is a fundamental atmospheric rate. Wind speed is caused by air moving from high pressure to low pressure.Wind speed affects weather forecasting, aircraft and maritime operations, construction projects, growth and metabolism rate of many plant species, and countless other implications.

Global Wind BeltsThe Coriolis effect & other factors combine to produce a pattern of calm areas & wind belts around the earth. The calm areas include the Drumholds & the horse latitudes. The major global wind belts are the trade winds, the prevailing westerlies, & the polar easterlies. Global wind belts are the surface winds of each hemisphere that are divided into three wind belts: Polar Easterlies: From 60-90 degrees latitude. Prevailing Westerlies: From 30-60 degrees latitude (aka Westerlies). Tropical Easterlies:From 0-30 degrees latitude (aka Trade Winds).

Watch this Bill Nye video on water cycle !!!



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