氯气泄漏重大事故后果模拟分

ArchitecturestyleofsanfranciscoSanFranciscoTHEGEOGRAPHYLOCATION:westcoastofSanFranciscoPeninsula.SQUARE:​​47squaremiles.HISTORY:foundin1769,joinedtheU.S.FederalinPOPULATION:800,000people,about250000wereChinese.LOCATION:MainCaliforniaearthquakezone.Thelargestearthquake:1906EVER:in1851,1858,1865and1868Thelatestearthquake:1989Thestreetsofthecitycenterappearedafewfeetwidebreach,includingthelineoftheBayBridge.•Urbanarea:typicalhillyground.•Themostfamousthreehills:NobHill，RussianHillandTelegraphHill.•TEMPRATURE•Hightemperatureinsummer:20Celsiusdegrees,onlyaboutoneweekinayearwillhigherthan30duetothestrongbreeze.•September:warmest•temperatureofthePacificarebetween10and15,•themidnighttemperatureinsummer:lowerthan10Celsiusdegrees.••CLIMATE:subtropicalMediterraneanclimate,•knownas:theAmerican'smostwelcomecity.Sanfranciscocityhall1.Solemn2.Holy3.rulableUnionsquareAnareaof2.6acres,Occupyafewstreetblocksofthecentralshopping,hotelandtheaterdistrictLombardStreet,aneast-westdirectionthroughthestreetsofPresidioDistrictandCowHollowdistrictofSanFrancisco,California,USA.ItisthemostcrookedstreetintheUnitedStates,andhaseightsharpbendsjustonashortdistanceoftheroad.Fisherman'sWharfItconcludestthewaterareafromGhirardeliSquareofthenorthofsanfranciscotothebandsof35WharfSinceitsinceptioninthe1840s,ChinatownhasbeenintheUnitedStatesplaysanimportantroleinthehistoryandcultureoftheChineseimmigrantcommunitiesinNorthAmericaGoldenGateBridgeisasymbolofsanfrancisco,whichisthefirstsuspensionbridgespanningmorethan1000metresSanFranciscoInternationalAirportModernization,convenience,speedinessWhatistheclimateofSanFrancisco?TheMediterraneanclimate?Themaritimeclimateoftemperatezone?RIGHTWRONGThecharacterofmediterraneanclimateistherealotofraininwinteranditisdividedintotwotypes:oneisCoolsummertypeandanotherisWarmsummertypeCoolsummertype:closetothecoldoceancurrentscoast,summercoolfoggy,littlerain.Theaveragetemperatureisbelow22degreesinthemosthotmonth,inthemostcoolmonththeaveragetemperatureisaround10degrees.Warmsummertype:farfromshore,dryandhotinsummer,theaveragetemperatureinthemosthotmonthisabove22degrees,wetwintersaremild.TheanothercharacteristicofSanFranciscoweatheristhedifferenceoftemperatureissmallinoneyearandalargetemperaturedifferenceinoneday.LandscapeSanfrosiscoisacitywhereyoucanspendyourholiday.peoplecomefromeverycorneroftheworldcreatetheuniqueculture.ThebesttimetotravelSanFranciscoisfitfortourismthroughouttheyear.Winterisgenerallymorehumid.Insummer,itmayappearSummerfogandtheweathermayappearmultipletimeschangesintheday,itismuchcoolerthanotherareasofCalifornia.LandscapetheGoldenGateBridge,Homosexuality,Cablecars,Carchases,hippy(Hippies),Alcatraz,Fisherman'sWharf,SiliconValley,NobHillNorthBeachopentime:everytimefreeNorthBeach,therearemanyItalian-Americanimmigrantslivingthere.Duringthedaycansitandenjoythecoffee,pastaandcakesinCoffeeorrestaurantoutdoor.NightinWashingtonSquare,WashingtonSq,AlcoholordinnerinNorthBeach,fullyawareoftheSanFrancisco-styleItalianstyle.FishermansWharFisherman'sWharfislocatedattheintersectionofJeffersonStreetandTaylorStreet,isoneofthesymbolsofSanFrancisco.ItGatheresalotofshoppingcenters,road,rowuponrowoftheSanFranciscocrabsellers,streetmusiciansandartistsperformingisonebyone.Fisherman'sWharfhasbecomeapopulartouristattractioninSanFrancisco.UnionSquareUnionSquareislocatedindowntownSanFrancisco.UnionSquare,neartheshops,designershoppingmallseverywhere,itisashopper'sparadise.AlongthefashionableMaidenLane,cometoSanFranciscowhichtheonlyonedesignedbyFrankLloydWrightbuilding(nowanartgallery,closedonSundays)FolkArtBuilding(FolktheArtInternational,Monument).TransamericaPyramidThisisapyramid-building,853feethigh(approximately259.99meters),itisthetallestbuildinginthecityofSanFrancisco.Thisbuildingisasymbolicheadquartersoftheultra-USfinanceandinsurancecompany,farfrombuildingexternalhalfacresofurbanopenspace,itcanholdconcerts.THANKYOU