Xa sijonga imozulu kwizixhobo zethu zombane okanye simamele isazi ngemozulu kumabonwakude okanye kunomathotholo, sinikwa ipesenti yemvula okanye imvula (umzekelo, 70%). Lo mfanekiso ulula usixelela ukuba nokwenzeka kwemvula imini yonke. Abantu abaninzi abazi ithetha ntoni ipesenti yemvula.
Ke ngoko, siza kunikezela eli nqaku ukukuxelela ukuba ipesenti yemvula ithetha ntoni kwizibikezelo zemozulu kunye nokubaluleka kwayo.
Ithetha ntoni ipesenti yemvula?
Ukutolikwa kweli xabiso lamanani kudla ngokungaqondwa kwaye usenokuba ubhidekile malunga nenkcazo yepesenti yemvula kwingxelo yemozulu. Kubalulekile ukuqaphela ukuba neengcali zemozulu, ezinoxanduva lokudala uqikelelo olunjalo, Abasoloko befikelela kwimvumelwano ngendlela echanekileyo yokubala le pesenti.
Amathuba emvula kuqikelelo lwengqikelelo aqhele ukutolikwa njengamathuba emvula nangaliphi na ixesha ngexesha loqikelelo. Umzekelo, ukuba amathuba okuba kune imvula ngama-30%, ngoko ke amathuba okuba imvula ingani ngama-70%, akunjalo? Nangona kunjalo, oku akuchanekanga ngokupheleleyo.
Intsingiselo yegama elithi “ipesenti yemvula” isenokungacaci ngokukhawuleza. Ukucacisa, ibhekisa kumathuba okuba kubekho imvula.
Ngokwe-United States National Weather Service (NWS), ukuba nokwenzeka kwemvula (PoP), okanye inkcazelo esemthethweni yepesenti yamathuba emvula, ibonakalisa amathuba okuba kufumaneke ubuncinane bemvula eyi-0,01 mm yemvula ngexesha elithile indawo ethile kwindawo yoqikelelo.
Indlela yokubala ipesenti yemvula
Ukumisela ukuba nokwenzeka kwemvula, ekwabizwa ngokuba yi "PoP," izazi ngemozulu zixhomekeke kwizinto ezimbini. Eyokuqala linqanaba lakho lokuqiniseka (“C”) ukuba kuya kuna imvula kwindawo ethile. Inqaku lesibini liqondo apho imvula iya kunwenwa ngokubanzi ("A"). I-PoP ibalwa kusetyenziswa i-equation elula: PoP = C x A. Ke ithetha ukuthini le nxaki? Ngokwenene, I-PoP isebenza njengomlinganiselo wokuzithemba kwesazi ngemozulu ukuba kuza kunetha kwindawo yoqikelelo. I-“A” factor, kwelinye icala, imele ipesenti eqikelelweyo yendawo apho kulindeleke ukuba kubekho isixa esilinganisekayo semvula.
Masithi siyazi ngokuqinisekileyo ukuba imvula iya kwenzeka kwi-30% yaseParis. Kwimeko enjalo, sinokuthi ngokuzithemba ukuba kukho amathuba angama-30% emvula. Ngokufanayo, Ukuba inqanaba lethu lokuzithemba lingama-50% ukuba kuya kuna imvula kulo lonke elasePorto, ngoko kukho i-50% yokwenzeka kwemvula.
Ukuba uqikelelo lwemozulu lubonisa amathuba angama-50% emvula, kuyacetyiswa ukuba uphathe iambrela kunye nawe. Nangona kunjalo, kubalulekile ukuqaphela ukuba amathuba emvula awahambelani nobungqongqo okanye ubude bexesha lemvula eqikelelweyo.
Indlela esetyenziswa ziingcali zemozulu ukuvavanya ukuba nokwenzeka kwemvula ayifani kuwo wonke umsebenzi.
Njengoko kuxoxiwe ngasentla, nangefomula esekiweyo esebenza njengomgangatho kwimeteorology, Iingcali ezahlukeneyo kweli candelo zixhomekeke kwindlela yazo yokutolika kunye nendlela yokuvavanya ukuba nokwenzeka kwemvula. Kusenokubakho ukungavisisani phakathi kweengcali zemozulu malunga nokubalwa okuchanekileyo koku, kodwa ukungangqinelani akubalulekanga ngokwaneleyo ukuguqula iindlela zethu zemihla ngemihla.
Ithetha ntoni ipesenti yemvula kwii-apps?
Xa beshiya ikhaya, abantu abaninzi bafumanisa ukuba akwanelanga ukujonga efestileni ukujonga imozulu nokwazi ukuba imvula iza kune. Ngoku, abantu abaninzi ngakumbi bajonga ii-apps eziphathwayo ukujonga iimeko zemozulu ngaphambi kokuba baphume. Nangona kunjalo, usenokuba uyazibuza ukuba yeyiphi ipesenti yeemvula ezininzi iinkonzo zemozulu ezibonelelayo kwaye kutheni ingasoloko ihambelana noko ubona ngaphandle kwefestile yakho okanye ekugqibeleni kwenzeka ntoni. Ungakhathazeki, ayisiyongxaki kwifowuni yakho.
Enye yezona mpendulo zisisiseko ukuba le pesenti ithetha ukuthi "imele amathuba okuba kuya kunetha kwisixeko sakho, kodwa azisoloko zichanekile." Abanye bathi le pesenti ihambelana "nexesha abakuxelela ngalo indawo yendawo apho kuya kuna imvula."
Le pesenti yemvula ingakuxelela ulwazi olungaphezulu kunokuba ucinga kuba inani lithetha ukuba nokwenzeka kwemvula, imiphezulu eya kuba manzi, kunye nokuba iya kuba manzi kangakanani na. NgokweNkonzo yeSizwe yeMeteorological (AEMET), Eli nani lilungiswa ngokusekelwe kwidatha yangaphambili kwaye liyisebenzisela ukubonisa ipesenti yamaxesha okunetha kwemvula kwindawo ojonge kuyo ngokwemeko obukuyo ngelo xesha.
Umbutho ubonelela ngeepesenti zemvula kwindawo nganye ekufutshane kangangoko kunokwenzeka kwiimeko zokwenyani. Nangona kunjalo, ubukhulu bendawo esijonge kuyo idatha yemvula, liya kuba lincinci elichanekileyo eli nani.
Ke xa sibona ama-60% kwi-app yemozulu, umzekelo, ayisixeleli ukuba kuza kune imvula kuma-60% omhlaba, okanye kukho amathuba angama-60% okunetha ngaloo mini. Enyanisweni, isixelela ukuba kwakufuthi kangakanani imvula xa iimeko zemozulu ezifanayo zazisenzeka ngaphambili. Kule meko, oko kuthetha ukuba phantsi kweemeko zangoku ze-atmospheric, amaxesha amathandathu kwalishumi ane imvula kwixesha elidlulileyo.
Iziphumo ezahlukeneyo
Ukwenza uqikelelo, abahlalutyi bemozulu baphindaphinda izinto ezimbini: ukuqiniseka ukuba inkqubo yemvula iyabumba okanye isondela kuyol, ibalwa ukusuka kwimilinganiselo yeatmospheri, iphindaphindwe ngobungakanani (indawo ebonakalayo) ekulindeleke ukuba inkqubo yemvula ibe nayo. Ngaphakathi kwendawo yokuhlalutya (isiphumo sitshintshiwe kuphela iindawo ezimbini zedesimali kwaye amathuba okuna kwemvula afunyenwe).
Oku kubonisa ukuba ipesenti efanayo yemvula inokufezekiswa ngokuseta amaxabiso ahlukeneyo kwinto nganye.
Ukubona ukuba le mbono isebenza njani, masibuyele kumzekelo wethu apho Indawo inamathuba angama-40 emvula: ukuba umhlalutyi uqinisekile ukuba imvula iya kuba nemvula kule ndawo. (ukulinganisa isantya somoya, ubushushu bomoya, ukufuma komoya, njl.njl.), kodwa ulindele ukuba inkqubo igubungele kuphela i-50% yendawo, iya kuthi kukho "i-40% yamathuba emvula" ngelo xesha.
Ngakolunye uhlangothi, ukuba omnye umhlalutyi uqikelela ukuba imvula iya kugubungela i-100% yendawo ehlalutyiweyo, kodwa i-40% iqinisekile ukuba imvula iya kufikelela kwindawo, uya kufumana umphumo ofanayo: "Naphi na kwindawo ngeli xesha. imvula ngama-40%.
Ndiyathemba ukuba ngolu lwazi unokufunda ngakumbi malunga nokuba ipesenti yemvula ithetha ntoni kunye nokubaluleka kwayo.