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Hatsarin ruwan sama mai ƙarfi a lokacin damina ta arewa maso gabas: nazari

An samu karuwar ruwan sama sosai a lokacin da aka fara damina daga arewa maso gabas a tsakanin shekarar 2011-2020 sannan kuma adadin ruwan sama ya karu a lokacin damina, in ji wani bincike da wasu manyan masana yanayi na sashen hasashen yanayi na Indiya suka gudanar.
Don binciken, an zaɓi tashoshi 16 na bakin teku a cikin bel tsakanin kudancin bakin tekun Andhra Pradesh, arewa, tsakiya da kudancin Tamil Nadu. Wasu daga cikin tashoshin yanayi da aka zaɓa sune Nellore, Sulurpet, Chennai, Nungambakkam, Nagapattinam da Kanniyakumari.
Binciken ya nuna cewa ruwan sama na yau da kullun ya karu tsakanin 10 mm zuwa 33 mm a lokacin damina a watan Oktoba tsakanin 2011-2020. Ruwan sama na yau da kullun a irin wannan lokacin a shekarun da suka gabata yawanci yana tsakanin mm 1 zuwa 4 mm.
A cikin binciken da ta yi kan yawan ruwan sama mai yawa da magudanar ruwa a yankin, ya bayyana cewa an samu ruwan sama mai karfin gaske na tsawon kwanaki 429 a tashoshin yanayi 16 a duk fadin yankin arewa maso gabas cikin shekaru goma.
Mista Raj, daya daga cikin wadanda suka yi binciken, ya ce adadin ruwan sama da aka samu ya kai kwanaki 91 a cikin makon farko tun da damina ta fara. Yiwuwar ruwan sama mai yawa akan bel na bakin teku ya karu da sau 19 a lokacin damina ta kasance idan aka kwatanta da lokacin da aka fara farawa. Duk da haka, irin wannan matsalar ruwan sama mai yawa ba kasafai ba ne bayan janyewar damina.

Binciken da aka yi ya nuna cewa lokacin da za a fara da kuma fitar da ranar damina ta kasance muhimman abubuwa na damina, binciken ya ce yayin da ma'anar ranar farawa ta kasance ranar 23 ga watan Oktoba, matsakaicin ranar janyewar ita ce ranar 31 ga watan Disamba a cikin shekaru goma. Waɗannan kwanaki uku da huɗu sun biyo baya fiye da matsakaicin kwanakin tsawon lokaci.
Damina ta tsaya tsayin daka a kudu maso gabar tekun Tamil Nadu har zuwa 5 ga Janairu.
Binciken ya yi amfani da dabarun zamani don nuna yawan karuwa da raguwar ruwan sama bayan farawa da janyewa a cikin shekaru goma. Ya dogara ne akan bayanan ruwan sama na yau da kullun tsakanin Satumba da Fabrairu da aka samu daga Cibiyar Bayanai ta Kasa, IMD, Pune.
Mista Raj ya lura cewa binciken ya kasance mabiyi ne na binciken da aka yi a baya wanda ke da nufin samar da bayanan tarihi game da farkon damina da lokacin janyewar na tsawon shekaru 140 tun daga 1871. Wurare irin su Chennai sun karya tarihin yawan ruwan sama da yawa a cikin 'yan shekarun nan kuma matsakaicin ruwan sama na shekara-shekara ya karu a cikin 'yan shekarun nan.

Mun ƙirƙiro sabon ƙaramin ƙaramar ma'aunin ruwan sama mai jure lalata da ya dace da sa ido iri-iri na muhalli, maraba da ziyartar

Sauke ma'aunin ruwan sama

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Lokacin aikawa: Oktoba-10-2024