Earth Science

On the evening news , one and only(a) would usually detect a reporter or meteorologist give the stand forebode for the next few days . The forecast may conk out constant stand conditions for the entire week , or it could auspicate extreme changes in the run as the days go by . There are many things that could indicate these changes in the weather . However the best indicator of weather changes is atmospherical squashAtmospheric closet refers to the force per unit area exerted against a rise up by the weight of the commit above that surface (University of Illinois , 1999 . unspoiled like liquids , style applies pressure on all things which is set within it and surrounding it ( Pressure 2000 . Atmospheric pressure is quantified in Pascals (Pa ) and is calculated with the use of a barometer ( Pressure 2000Atmospheric pressure is one of the best determinants of weather (Williams , 2008 . In weather maps , the letters H and L are used to identify the areas with high and minor pressure areas respectively . These areas are crucial as they specify the weather . It is a high pressure area when the pressure of the pushover is greater than that of the air around it . It is a mortified pressure area when the pressure of the air is lower than that of the air around it (Williams , 2008High pressure is mostly linked with good weather , while low pressure is connected with bad weather (Williams , 2008 . High pressure is expected in areas wherein the air is declining . The stemma of the air makes it warmer , which impedes cloud formation . However , the air which goes down in areas with high pressure allow for finally rise again in areas with low pressure .

When the air ascends , it becomes frigidness . Then , the humidity of the cold air will be reduced to water . If the air is very cold , the humidity can result to ice . If there is able water or ice , there will be precipitation (Williams , 2008Indeed , pressure in the air plays a indispensable part in influencing the weather condition . This is the reason wherefore atmospheric pressure is a key indicator of weather changesReferencesPressure (2000 . Encyclopedia of Atmospheric Environment . Retrieved September 16 , 2008 , from hypertext transfer protocol /www .ace .mmu .ac .uk /eae /weather /older /Pressure .htmlUniversity of Illinois (1999 . Atmospheric pressure . Retrieved September 16 , 2008 , from http /ww2010 .atmos .uiuc .edu (Gh /guides /mtr /fw /prs /def .rxmlWilliams , J (2008 . What s happening inner(a) highs and lows USATODAY .com . Retrieved September 16 , 2008 , from http /asp .usatoday .com /weather /tg /whighlow /whighlow .htmPAGEPAGE 1...If you lack to get a full essay, order it on our website: Ordercustompaper.com

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