|
'''Orkan''' (''tropski ciklon'', ''uragan'') [[meteorologija|meteorološka]] je pojava na [[Zemlja|Zemlji]] koja se sastoji od brzih [[vjetar|vjetrova]] te mnogo [[kiša|kiše]]. Uragani mogu trajati nekoliko dana ili tjedana i česta su pojava na istoku [[SAD]], Jugoistočnoj [[Azija|Aziji]] i na sjeveru [[Australija|Australije]]. Suprotno o medijskim napisima o snažnim vjetrovima koji sve uništavaju na svom putu uragani su na kopnu mnogo slabiji vjetar od naše bure iako u obalnom području imaju veću razornu moć zbog dizanja razine mora.<ref>[http://blog.meteoadriatic.net/2012/10/30/tc-sandy-vs-jadranska-bura/ TC Sandy vs jadranska bura]</ref>
== Work in progress ==
Tropski ciklon je brzo rotirajući [[oluja|olujni sitem]] koji se odlikuje centrom nasa [[Oblast visokog pritiska|niskomniskim pritiskupritiskom]], [[Beaufortova skala|jakom vetrovima]], i spiralnim aranžmanom [[Grmljavinska oluja|grmljavinskih oluja]] koje proizvode jaku kišu. DependingU onzavisnosti itsod locationnjegovog andpoložaja i strengthjačine, atropski tropicalciklon cyclonese isnaziva referredimenima tokao byšto namessu suchurgan as [[#Hurricane or typhoon({{jez-eng|hurricane]]}}, ({{IPAc-en|ˈ|h|ʌr|ɨ|k|ən}} orili {{IPAc-en|ˈ|h|ʌr|ɨ|k|eɪ|n}}<ref>{{cite web|url=http://www.oxforddictionaries.com/us/definition/english/hurricane#hurricane|title=hurricane|publisher=Oxford dictionary |accessdate=October 1, 2014}}</ref><ref>{{cite web|url=http://www.merriam-webster.com/dictionary/hurricane|title=Hurricane - Definition and More from the Free Merriam-Webster Dictionary|accessdate=October 1, 2014}}</ref><ref>{{cite web|url=http://www.collinsdictionary.com/dictionary/english/hurricane|title=Definition of "hurricane" - Collins English Dictionary|accessdate=October 1, 2014}}</ref>), [[#Hurricanetajfun or typhoon({{jez-eng|typhoon]]}}, {{IPAc-en|t|aɪ|'|f|uː|n}}=, [[#Tropicaltropska storm|tropical storm]]oluja, cyclonicciklonska stormoluja, [[#Tropicaltropska depression|tropical depression]]depresija, andi simplyjednostavno cycloneciklon.<ref>{{cite web|url=http://oceanservice.noaa.gov/facts/cyclone.html|title=The only difference between a hurricane, a cyclone, and a typhoon is the location where the storm occurs|publisher=noaa.gov|accessdate=October 1, 2014}}</ref>
TropicalTropski cyclonescikloni typicallyse formtipično overformiraju largenad bodiesbelikim ofkoličinama relativelyrelativno warmvruće watervode. TheyOni deriveizvode theirsvoju energyenergiju throughiz the evaporation ofisparavanja [[watervoda|vode]] fromsa thepovršine [[oceanokean]] surfacea, whichkaja ultimatelyse ultimativno [[condensationkondenzacija|recondenseskondenzuje]] intou [[cloudsoblak|oblake]] andi rainkišu, whenkad moistse airvlažni risesvazduh andpodigne coolsi toohladi do [[SaturatedZasićena fluidtečnost|saturationzasićenja]]. ThisOvaj [[energyizvor sourceenergije]] differsse fromrazlikuje that ofod [[extratropicalekstratropski cycloneciklon|mid-latitudeciklonskih cyclonic stormsoluja]] srednje geografske širine, suchkao što assu [[nor'easter]]s and [[European windstorm]]s, which are fueled primarily by [[Baroclinic instability|horizontal temperature contrasts]]. The strong rotating winds of a tropical cyclone are a result of the [[conservation of angular momentum]] imparted by the Earth's rotation as air flows inwards toward the axis of rotation. As a result, they rarely form within 5° of the equator.<ref name="BAMS Zhang 1988">{{cite doi|10.1175/1520-0477(1998)079<0019:TCAGCC>2.0.CO;2}}</ref> Tropical cyclones are typically between {{convert|100|and|4000|km|mi|abbr=on}} in diameter.
Termin ''Tropicaltropski'' refers tose theodnosi geographicalna origingeografsko ofporeklo thesetih systemssistema, which form almost exclusively over [[tropics|tropical]] seas. ''Cyclone'' refers to their cyclonic nature, with wind blowing [[Clockwise and counterclockwise|counterclockwise]] in the [[Northern Hemisphere]] and clockwise in the [[Southern Hemisphere]]. The opposite direction of circulation is due to the [[Coriolis effect]].
In addition to strong winds and rain, tropical cyclones are capable of generating high waves, damaging [[storm surge]], and [[tornado]]es. They typically weaken rapidly over land where they are cut off from their primary energy source. For this reason, coastal regions are particularly vulnerable to damage from a tropical cyclone as compared to inland regions. Heavy rains, however, can cause significant flooding inland, and storm surges can produce extensive coastal [[flood]]ing up to {{convert|40|km|mi}} from the coastline. Though their effects on human populations are often devastating, tropical cyclones can relieve [[drought]] conditions. They also carry heat energy away from the tropics and transport it toward [[temperate]] [[latitudes]], which may play an important role in modulating regional and global [[climate]].
|
