An essay on Weather maps

Weather lay discloses, or synoptic charts, croup appearrather complicated. nevertheless when you know what thelines and symbols slopped you will and these functionseasy to use. One of the most pregnant features of the atmosphereand one that is genuinely frequently accountd is commit drive, or the lading of the standard atmosphere. All credit line hasweight. magical spell we cant feel it because we ar constantlysurrounded by it, sensitive instrumentscalled barometers can measure the duck soup constrict. Atmospheric air pressure measurements aregiven in hectopascals (hPa). some(prenominal) times a day,air pressure is read at sundry(a) weather stationsaround the world. Many observers around Australiameasure air pressure and some other aspects ofthe weather and send them to the national andregional centres of the Bureau of Meteorology. These observations are unite with othersmade from satellites, aircraft, ships at sea and inother countries to prepare weather maps. The main(prenominal) lines that we search on weather mapsare called isobars. Isobars are lines joining placesof enough pressure. Highs and abjectsThe average weight of air at sea address is 1013 hPa. If air pressure measures more than 1013 hPa, it isusually an area of sinking air and is generally anarea of high school pressure. High pressure systems areoften called anticyclones. You can see from the plank icy what a high pressure system lookslike and the left-handed heed the air travelsin a high pressure system. The despicable air, knownas wind, always carry ons bulge out of a high and into a lowpressure system. If air pressure measures below 1013 hPa, it isusually an area of rising air, and is generally anarea of low pressure. Low pressure systems areoften called cyclones. You can see in our duck whata low pressure system looks like and the clockwisedirection the air travels in a low pressure system. Pressure systems generally affect from west toeast as they move acro ss Australia and around theworld. As they mo! ve they change in shape andoften change their latitudinal position. PRESSURE SYSTEMSSometimes people confuse pressure systems withair bargaines. An air toilet is a large section of theatmosphere containing air with a identical temperatureand moisture content. A line drawn on aweather map to show where two different airmasses meet is called a front. in that respect are two maintypes of fronts: insensate fronts and warm fronts. When we look at the direction of winds on aweather map we can work out if temperatures arewarmer, cooler or about conventionality for the time ofyear. In Australia, a northerly wind (coming fromthe north) means warmer than radiation diagram temperaturesand a due southerly wind, cooler than normaltemperatures. Easterlies and westerlies meantemperatures that are around normal. rock MASSES AND FRONTSWINDS AND TEMPERATURESAMPLE STUDYSnowfalls to the south and centralranges of south-eastern AustraliaThe weather map below for 30 July 2003 shows a stone-col d front moving into the Tasman Sea that hasbrought a `cold snap to south-eastern Australia. Cold and moist air from the ocean to the south ofAustralia locomote across Tasmania, Victoria andNew South Wales bringing massive snowfalls tothe high parts of the tablelands and ranges. Over 40 centimetres of snow dangle in the SnowyMountains and therewere falls of up to20 centimetres overthe CentralTablelands. Whilesuch snowfalls arewelcome news forskiers during thewinter months,they often createdifficult conditionsfor graziers whomust take earlyprecautions to protecttheir sheep from thevery cold weather. Weather map, 30 July 2003http://www.icms.com.au/inqua2007/abstract/192.htmhttp://www.google.com.au/search?hl=en&q=pattern+climate+and+ve lounge aroundation+in+Australia&meta= If you destiny to get a full essay, order it on our website: OrderCustomPaper.com

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