FormationSayniska

Xawaaraha dabaysha ee duufaanaha iyo duufaanada

Haddaba xawaaraha dabaysha lagu cabbiraa qalabka gaarka ah - koob anemometer. qalab Tani waa mid fudud ilaa xad: on dhidibka taagan daadgureyntaasi xuubcaaro at darafyadiisa oo ka mid ah oo waxaa la geeyaa Safra. koob Kuwani waa inay awoodaan in ay qabsadaan tan iyo Taabto wax yar. Under tallaabada ay karoos uu bilaabo inuu isku shaandheyn, iyo qalabka wax lagu qoro diiwaan dhidibka taagan ee inta jeer ee meerto. Sidaas darteed, waxaan dhihi karaa in dabayshu ka imanayso xawaare ka mid ah mitir badan oo halkii kilomitir labaad ama aad u badan saacadiiba. Near anemometer Vane ah ayaa qarka u saaran, oo muujinaysa jihada socodka hawada.

Laakiin ka hor, ka hor war abuurashadoodii ah oo alaabta muusikada ah sax in loo ogaado xawaaraha dabaysha, dadka loo isticmaalo qiyaasta, oo waxaa la sameeyey by Admiral Ingiriisi ah Beaufort. Oo wuxuu kaloo sameeyey miiska meesha dhammaan dayuuradaha hawada waxaa loo kala saaraa ka eber ilaa 12 dhibcood. Waayo, Hufnaan, Beaufort isticmaalo box: at eber (deji dhintay) banner ka soo laalaadeen on calamada ah. Markii mid ka mid ah ayaa score liidata kareyso, muddo laba - wavers, saddex - ruxaya, iyo wixii la mid ah, ilaa 12 dhibcood, kolkii dabayshii beddelin Dabayl iyadoy dhab ah, dooxeen off buundooyinka iyo guryaha. Waxaa la fahamsan yahay in marka qulqulka hawada waxaa la dedejiyey si xawaare ah 37 mitir per labaad, calanka ma aha mar dambe lagama maarmaan ah in ay hadlaan, oo ilmada iyo xanbaarsan la element calamada.

Si kastaba ha ahaatee, 12 dhibcood ama 37 m / s - tani ma aha xadka. qalabka casriga ah u ogolaan cabbirka hagaagay ee Beaufort iyo iyaga kaabaya leh shan dhibcood oo kale. Waxaa qiyaasta Saffir-Simpson cabiraya jab aad u xoog badan. xawaaraha Wind in duufaan a, sida ay Beaufort, waa in aanay noqon wax ka yar 35 m / s, laakiin kulaale, iyo iyaga oo keliya ma aha, ay dhacdo in tacsida hawada u dhaqaaqin xawaare rikoor 170 mitir halkii labaad. xoogga dhaqdhaqaaqa waqti isku mid ah waa in loo hayaa caws fudud ku xayiran in sagxadaha adag sida musmaarro bir ah! Si loo go'aamiyo walxahaasi, sita failure, luqada aadanaha kacay magacyada badan: Duufaan, duufaan, tornado, thrombus, duufaanka, duufaan. Mid ka mid ah ifafaale ama haddii ay tahay kala duwan?

Ha noo, marka hore, ka fiirsan awoodda sheegtay Alley guriga ee dalka sixir ah ee Oz. United States of America at its dhamaadka galbeedka sare iyo qabow Mountains Rocky. hawo qabow badan buuraha ururayaa wuxuuna abuuraa gobolka kar. US kabo faras bari ku wareegsan oo gacanka Mexico iyo Badda diiran Caribbean - meel ka mid ah Cadaadiska hoose. oo buuraha iyo badda u dhaxaysa yihiin baaxad weyn, guri sida miiska korkiisa ah, meelaha gobolka Kansas, Iowa iyo Oklahoma. Aan arkayn uu ku caqabadaha gaarka ah, hawada qabow hoos gobays, buuxiya updrafts kaamerada, qaloocdo galay muquuninta ah. Sayidka ayaa ku dhashay "tornado" ( "qoqobada" ee Spanish) ama "thrombus" ( "biibiile" ee Faransiis). Magaca waa mid aad u badnaayeen, waayo, waa arrin u eg tuubo Rafaa dhulka samada, gudahood kaas oo wax kasta oo daba noqonayaa. xawaaraha dabaysha halka dhexe ee tuubada gaari karaan 150 m / s, iyaga qudhooduba waa wada dhaqdhaqaaqay dushiisa biibiilaha xawaare ka mid ah 50-60 kilomitir saacaddii.

Waxaa dhacaya in diiran mass hawada badan ee Caribbean iyo badaha kale latitudes kulaylaha horjoogsado badda ku. Markaas waxaa ay u yeedheen duufaanada tropical (ee Giriigga ah ee "kiklon" - Giraanta mas) ama duufaan (furneyd "Huracan" - si deggan oo ruux.dalka loo yaqaan "baabbi'iyaa, ruuxa oo dhan"). xawaaraha dabaysha at duufaan weyn, iyo heerka burburinta - aad. Sida laga soo xigtay "xoog Coriolis" sabab u ah rogista cajaladda dhulka, wax ku muquuninta duufaan Southern Hemisphere ee qaloocdo jihada bilow ah, iyo waqooyiga - counterclockwise. Saadiyayaasha wac kuwaas oo xubno ka, ku dhashay Safra waqooyiga, magac dhaddig, iyo xagga koonfureed - lab. Magacyada ayaa la siiyaa alifbeetada Latin tan iyo bilowgii sannadkan in 31 December, tusaale ahaan, Alice, Bertha, Catherine, iwm Waxaa lagama maarmaan ah si loo xisaabiyo inta ay duufaantaasi ku dhashay sanadka gudihiisa, iyo inay is barbar dhigaan macluumaadka, kuwaas oo la sannadood oo kale. squalls oo dhan ma ka dhigay dhaawac sida "Katrina" New Orleans. Laakiin cabbirka ee xawaaraha dabaysha, cadaadiska ee "isha of duufaanka" iyo dirka ee duufaanka ku saabsan qiyaasta Saffir-Simpson qiimeyn doonaa heerka khatarta dhici raba iyo in ay qaadaan tallaabooyin si guuraan dadka.

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