Kukwera kwakukulu kwa mvula yamphamvu panthawi yoyambira mvula ya kumpoto chakum'mawa: kafukufuku

Pakhala mvula yochuluka kwambiri panthawi yoyambira ya mvula ya kumpoto chakum'mawa mu 2011-2020 ndipo kuchuluka kwa mvula yamphamvu kwawonjezekanso panthawi yoyambira ya mvula yamkuntho, akutero kafukufuku yemwe wachitika ndi akatswiri akuluakulu a zanyengo ku India Meteorological Department.
Pa kafukufukuyu, malo 16 a m'mphepete mwa nyanja omwe ali pakati pa gombe la kum'mwera kwa Andhra Pradesh, kumpoto, pakati ndi kum'mwera kwa gombe la Tamil Nadu adasankhidwa. Malo ena a nyengo omwe adasankhidwa anali Nellore, Sulurpet, Chennai, Nungambakkam, Nagapattinam ndi Kanniyakumari.
Kafukufukuyu adawonetsa kuti mvula ya tsiku ndi tsiku idakwera pakati pa 10 mm ndi 33 mm panthawi ya mvula yamkuntho mu Okutobala pakati pa 2011-2020. Mvula ya tsiku ndi tsiku m'zaka makumi angapo zapitazi nthawi zambiri inali pakati pa 1 mm ndi 4 mm.
Mu kusanthula kwake pa kuchuluka kwa mvula yamphamvu mpaka yamphamvu kwambiri m'derali, zawululidwa kuti pakhala mvula yamphamvu masiku 429 m'malo 16 ochitira nyengo panthawi yonse ya mvula yakum'mawa kwa kumpoto chakum'mawa kwa zaka khumi.
Bambo Raj, m'modzi mwa olemba kafukufukuyu, anati kuchuluka kwa mvula yamphamvu kunali masiku 91 m'sabata yoyamba kuyambira pomwe mvula yayamba. Mwayi wa mvula yamphamvu m'mphepete mwa nyanja wawonjezeka ndi nthawi 19 kuposa nthawi yomwe mvula yayamba kale poyerekeza ndi nthawi yomwe mvula yayamba kale. Komabe, mvula yamphamvu yotereyi siichitika kawirikawiri mvula yamphamvu ikatha.

Poona kuti masiku oyambira ndi osiya ndi zinthu zofunika kwambiri pa nthawi ya mvula yamkuntho, kafukufukuyu adati ngakhale kuti masiku oyambira anali pa Okutobala 23, nthawi yoyambira inali pa Disembala 31 m'zaka khumi. Izi zinali pambuyo pa masiku atatu ndi anayi motsatana kuposa masiku apakati a nthawi yayitali.
Mphepo yamkuntho inakhala nthawi yayitali kum'mwera kwa Tamil Nadu mpaka pa 5 Januwale.
Kafukufukuyu adagwiritsa ntchito njira ya superposed epoch kusonyeza kuwonjezeka ndi kuchepa kwa mvula pambuyo poti mvula yayamba ndi kutha m'zaka khumi. Izi zidachokera ku deta ya mvula ya tsiku ndi tsiku pakati pa Seputembala ndi Febuluwale yomwe idapezeka ku National Data Centre, IMD, Pune.
Bambo Raj adanenanso kuti kafukufukuyu anali wotsatira maphunziro akale omwe cholinga chake chinali kupanga deta yakale yokhudza masiku oyamba kwa mvula yamkuntho komanso nthawi yobwerera kwa mvula kwa zaka 140 kuyambira mu 1871. Malo ngati Chennai aswa mbiri ya mvula yambiri m'zaka zaposachedwa ndipo avareji ya mvula pachaka mumzindawu yawonjezeka m'zaka zaposachedwa.

Tapanga kumene choyezera mvula chaching'ono chomwe sichingagwe ndi dzimbiri choyenera kuyang'anira zachilengedwe zosiyanasiyana, talandiridwa kuti mudzacheze.

Choyezera mvula chomwe chimazindikira madontho