Walƙiya mai haɗari
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Yajin walkiya ko walkiya shine fitarwar lantarki tsakanin yanayi da Kasa. Yawancin ya samo asali ne a cikin gajimare na cumulonimbus kuma yana karewa a kasa, wanda ake kira walkiya -zuwa kasa (CG). Wani nau'in yajin da ba a saba sabawa ba, walkiya daga kasa zuwa gajimare (GC), walkiya ce mai habakawa zuwa sama wanda aka fara daga wani abu mai tsayi kuma yana shiga cikin gajimare. Kusan kashi 69 cikin 100 na duk abubuwan da ke faruwa na walkiya a duk duniya suna faruwa ne tsakanin yanayi da abubuwan da ke daure kasa. Yawancin su ne intracloud (IC) walkiya da gajimare-zuwa-girgije (CC), inda fitarwa kawai ke faruwa a cikin sararin samaniya. [1] Walkiya tana afkawa matsakaicin jirgin sama na kasuwanci akalla sau daya a shekara, amma injiniyanci da kira na zamani yana nufin wannan ba matsala bace. Motsin jirage ta cikin gajimare na iya haifar da tashin walkiya.
Walƙiya mai haɗari | |
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Bayanai | |
Ƙaramin ɓangare na | lightning (en) da hatsari |
Has immediate cause (en) | lightning (en) |
Walkiya guda daya ita ce "flash", wanda ke da sarkakkiya, tsari mai yawa, wasu sassa wadanda ba a fahimta sosai ba. Yawancin CG suna walkiya kawai "busa" wuri daya na jiki, wanda ake magana da shi azaman "karewa". Tashar gudanarwa ta farko, haske mai haske, wanda ake iya gani kuma ana kiranta "yajin", kusan inci daya ne kawai a diamita, amma saboda tsananin haske, sau da yawa ya fi girma ga idon dan adam da hotuna. Fitowar walkiya yawanci tsayin mil ne, amma wasu nau'ikan watsawar a kwance na iya kaiwa sama da dubun mil a tsayi. Dukan filasha yana daukar dan juzu'in dakika daya kacal