Yanayi na Dhaka

Dhaka ta fuskanci yanayi mai zafi, jika da ɗanshi. Ƙarƙashin rarrabuwar yanayi na Köppen, Dhaka yana da yanayin jika da bushewar yanayi. Garin yana da lokacin damina na musamman, tare da matsakaita na shekara-shekara na 25 °C (77 °F) kuma kowane wata yana nufin bambanta tsakanin 18 ° C (64 ° F) a cikin Janairu da 29 ° C (84 °F) a cikin Agusta.Weatherbase: Historical Weather for Dhaka, Bangladesh". weatherbase.com. Retrieved 2008-12-15. Kusan kashi 80 cikin 100 na yawan ruwan sama na shekara-shekara na milimita 1,854 (73.0 in) yana faruwa a lokacin damina da ke gudana daga watan Mayu zuwa karshen watan Satumba. Kara gurbacewar iska da ruwa da ke fitowa daga cunkoson ababen hawa da sharar masana'antu babbar matsala ce da ke shafar lafiyar jama'a da ingancin rayuwa a cikin birni. Jikunan ruwa da dausayi a kusa da Dhaka suna fuskantar lalacewa yayin da ake cika waɗannan gine-gine masu hawa da yawa da sauran ci gaban ƙasa. Tare da gurɓata yanayi, irin wannan zaizayar ƙasa na barazanar lalata yawancin halittun yankin.

Yanayin sanyi ba sabon abu bane a ciki da wajen Dhaka. Lokacin da yanayin zafi ya ragu zuwa 8 ° C (46 ° F) ko ƙasa da haka, mutanen da ba su da tufafi masu dumi kuma suna zaune a gidajen da ba su dace ba suna iya mutuwa saboda sanyi.Hundreds Dead in Bangladeshi Cold Spell". The Washington Post. 6 January 1998. p. A14. In northern Bangladesh, temperatures dipped to 46 degrees Sunday, the Independent newspaper said. Although the temperature was above freezing, it was cold enough to kill people in tropical Bangladesh, where half the population of 120 million people can't afford enough food or warm clothes.

 Dalilai 
Dhaka tana da yanayin jika da bushewar yanayi na wurare masu zafi. Lokacin damina yana kawo kusan kashi 80% na matsakaicin ruwan sama na shekara-shekara na milimita 1,854 (inci 73) kuma yana faruwa tsakanin Mayu da Satumba.

Daminar Kudu maso Yamma na faruwa daga Yuni zuwa Satumba a cikin watannin bazara. A wannan lokacin ruwan sama kamar da bakin kwarya ya yi kamari a birnin da ma kasar baki daya. Ana yawan samun ambaliyar ruwa a Dhaka kusan kowace shekara.

Guguwa mai zafi suna faruwa a cikin watanni na rani daga Afrilu zuwa Yuni sannan daga Satumba zuwa Disamba. Wadannan guguwa na faruwa kusan kowace shekara a Bangladesh ko da yake karfinsu ya bambanta daga shekara zuwa shekara.

Guguwar guguwa ta zama ruwan dare gama gari a Bangladesh saboda tana ɗaya daga cikin ƙasashen da ake yawan fama da ita a duniya, bayan Amurka da Kanada."The Online Tornado FAQ (by Roger Edwards, SPC)"

 Tasirin sauyin yanayi 
Duba kuma: Sauyin yanayi a Bangladesh da sauyin yanayi a Kudancin Asiya

Sauyin yanayi ya tilastawa mutane da yawa a Bangladesh mazauna karkara yin ƙaura zuwa garuruwan da ya haifar da hauhawar yawan jama'ar marasa galihu na Dhaka[8]. Kasancewar Bangladesh kasa da taku 20 ne kawai daga matakin teku, akwai fargaba da fargabar cewa nan da karshen karni na 21, sama da kashi daya bisa hudu na kasar za su fuskanci bala'in ambaliyar ruwa, yayin da mutane miliyan 15 za su yi gudun hijira saboda hawan teku.[8] Al’ummar Dhaka, wanda a halin yanzu mutane miliyan 13 ne, ana hasashen za su karu zuwa miliyan 20 nan da shekara ta 2025. Wannan ya haifar da fargabar cututtukan da ke haifar da ruwa da bullar wasu cututtuka da dama[9]. Wani rahoto na Majalisar Dinkin Duniya da WWF ya yi gargadin cewa Dhaka ya fi fuskantar hadarin sauyin yanayi a Asiya.

 Ruwan sama na Daka 
Lokacin damina yawanci yana farawa daga Yuni kuma yana ƙare a watan Satumba. Mai zuwa shine ruwan sama na damina na shekara-shekara na ƴan shekarun baya bisa bayanai daga Sashen yanayi na Bangladesh.Bangladesh Meteorological Department". Archived from the original on 2011-02-19. Retrieved 2010-11-19.

A cikin 2000, an yi rikodin jimillar milimita 5,220 (206 in).

A cikin 2001, an yi rikodin jimillar milimita 5,590 (220 in).

A cikin 2002, an yi rikodin jimillar milimita 7,257 (285.7 in).

A cikin 2003, an yi rikodin jimlar milimita 4,934 (194.3 in).

A cikin 2004, an yi rikodin jimillar milimita 8,308 (327.1 in).

A cikin 2005, an yi rikodin jimlar milimita 6,903 (271.8 in).

A cikin 2006, an yi rikodin jimillar milimita 7,137 (281.0 in).

A cikin 2007, an yi rikodin jimillar milimita 8,895 (350.2 in).

A cikin 2008, an yi rikodin jimlar milimita 6,712 (264.3 in).

A cikin 2009, an yi rikodin jimillar milimita 6,252 (246.1 in).

A cikin 2010, an yi rikodin jimillar milimita 5,016 (197.5 in).

 Matsalolin yanayi 
Matsanancin yanayi da suka haɗa da cyclones na wurare masu zafi, mahaukaciyar guguwa, fashewar gajimare da ambaliyar ruwa sun yi tasiri a Dhaka:

A cikin 1956, an sami kimanin milimita 326 (inci 12.8) na ruwan sama a cikin sa'o'i 24 a Dhaka.

A cikin 1970, guguwa mai zafi ta Category-3 ta kashe mutane 500,000 a yankin bakin teku, wanda kuma ya yi mummunar tasiri a Dhaka.

A cikin 1989, wata mahaukaciyar guguwa ta kashe mutane 1,300 a yankin Dhaka.

A cikin 1991, guguwa mai zafi ta Category-5 ta lalata gabar tekun Bangladesh, ta yi tasiri ga Dhaka da tsananin ruwan sama da iska mai lahani.

A cikin 2004, an yi rikodin rikodin ruwan sama na milimita 341 (inci 13.4) a Dhaka cikin sa'o'i 24.

A cikin 2009, an sami kimanin milimita 333 (13.1 in) na ruwan sama a Dhaka cikin sa'o'i 24.

A cikin 2023, a ranar 16 ga Afrilu, yankin Dhaka ya sami matsakaicin matsakaicin 40.6 °C (105.1 °F), mafi girman zazzabi na Afrilu a yankin tun 1965.

 Manazarta