Sakamakon narkar da shi

Narkar da kankara

Kamar yadda muka riga muka sani, kowace shekara ana barin duniyar tamu tare da ƙananan yankuna da ke rufe kankara. Karuwar yanayin duniya saboda karuwar tasirin greenhouse yana yin barna ga tsarin halittu wadanda suka dogara da kankara don rayuwa. Sakamakon narkarwar ya fi yadda kuke tunani tsanani. Saboda haka, zamu sadaukar da wannan labarin don gaya muku duk abin da kuke buƙatar sani game da shi sakamakon narkewa.

Idan kana son karin bayani game da wannan batun, to sakon ka kenan.

Rinanƙara zanen kankara

Babban sakamako na narkewar

Yanayin da duniyar ta rayu a baya game da yanzu ya sha bamban. Saboda dumamar yanayi, Arctic yana ci gaba zuwa narkewa baki ɗaya sau biyu ko ninki uku na saurin sauran duniya. Ice yana taka muhimmiyar rawa ga yawancin dabbobin dabba irin su polar bears. Yawancin lokaci, Satumba shine lokacin da ake samun babban koma baya na zanen kankara. A yau, a cikin waɗannan watannin lokacin da kaurin katakon kankara ya ragu zuwa rabi.

Babban dalilin da yasa katunan kankara ke raguwa a kowace shekara cikin saurin sauri saboda layin jigilar zafin da yake zuwa daga Ecuador. Wannan hanzarin ɗumamar yanayin zai haifar da lokacin bazara wanda babu kankara a cikin Arctic ba da daɗewa ba.

Idan aka kwatanta da 'yan shekarun da suka gabata, za mu yi maganar kankara mai shekaru da yawa. Wannan nau'in kankara shine wanda ake samu kuma yake iya dorewa bayan shudewar yanayi da shekaru. Ta wannan hanyar, ana yin yadudduka na kankara azaman siradi wanda za'a iya samun adadi mai yawa daga gare shi. Koyaya, tare da ƙaruwar yanayin zafi na shekara shekara ya fi na baya zafi. Saboda haka, kusan dukkanin kankara da za'a iya lura dasu wannan shekarar ta farko. Wato, cewa ya samu yayin lokacin yanzu kuma tabbas zai iya ɓacewa tare da lokacin narkewa.

Ice da yake samuwa a rana mai hunturu yana da kauri karami sosai fiye da wanda yake samuwa kuma yana wanzuwa shekara-shekara. Ta hanyar samun ƙarami kauri, idan yawan zafin jiki ya fi yadda aka saba, zai iya narkewa a lokacin bazara daya kawai.

Sakamakon narkar da shi

Lalacewa ga flora da fauna

Kamar yadda ake tsammani, idan tsarin halittu ya ƙirƙira duk wata ma'amala a matakin flora da fauna, ƙwayoyin cuta da fungi, ba hauka ba ne sosai a ce sakamakon narkewar na iya zama masifa. Zamu yi nazarin sakamakon narkar da shi daya bayan daya.

Ragewa a cikin albedo na ƙasa

Da farko dai dole ne mu san menene albedo. Sakamakon narkar da girman yana da ban mamaki ga duniyar tamu. Kodayake mutane da yawa ba sa suna shi suna jin sun fahimci albedo muhimmin abu ne ga dumamar yanayi. Shine yawan hasken rana wanda saman duniya ke nunawa ko komawa zuwa sararin samaniya.

Kamar yadda muka sani, rana da rana tana yawan haskaka rana zuwa duniya. Wannan adadin hasken rana a saman duniya kuma, Dogaro da launi na farfajiya, zai dawo da yawa ko amountasa na hasken rana zuwa yanayin. Launi mafi haske, fari shine mafi yawa, sune ke da alhakin tunatar da wannan lamarin hasken rana. Yana da ma'ana a yi tunanin cewa ɗaya daga cikin sakamakon narkewar shi ne rage adadin hasken rana da ake nunawa saboda kankara zai riga ya nuna shi. Akasin haka, teku tana tserewa daga ɗaukar zafi ta hanyar samun launi mai duhu. Kar mu manta cewa baki yana daukar zafi.

Idan zanen kankara ya ɓace, raguwar cikin albedo zai haifar da mahimmancin riƙe zafi daga saman duniya da haɓaka mafi girma a yanayin duniya. Ana lura da cewa, yayin da kankara ta bace, dusar ƙanƙara a bakin tekun ta narke da sauri sosai a lokacin bazara. Wannan saboda yawan iska ya fi dumi kuma ya isa daga tsaftataccen teku.

Matakan teku

Sakamakon narkar da shi

Bai kamata mu rikita narkewar Arctic da narkar da Antarctica ba. Arctic Arctic ba ta kasance a farfajiyar ƙasa ba. Wannan shine, idan kankara a sandar arewa ta ƙare ba zai shafi matakin teku ba. Zamu iya tabbatar da wannan gaskiyar lokacin da muka sanya gilashin ruwa tare da kankara. Lokacin da kankara ta ƙare ta narke gaba ɗaya sai mu ga cewa matakin ruwa a cikin gilashin iri ɗaya ne. Wannan saboda ƙanƙara tana da girma amma ƙarancin ƙarfi. Wato, yana mamaye mafi girman sararin samaniya ƙananan ruwa. Ta yadda idan, ya narke, sai ya maye gurbin sautin da yake ciki da yawan ruwan da ya tara.

Koyaya, ɗayan sakamakon narkewar mai tsanani shine narkewar kankara na kankara na Antarctica. A wannan yanayin, kankara tana saman ƙasa. Ta wannan hanyar cewa, idan kankara ta narke, duk yawan adadin ruwan da aka adana zai ƙare da haɓaka tekun.

Inara yawan hayakin methane

Perito Moreno Glacier

Gas na Methane ɗayan gas ne wanda ke iya riƙe mafi yawan zafi. Idan kankara a sandar arewa ta narke gaba ɗaya a watannin bazara, duk jikin ruwa na iya zafin wuta har zuwa kimanin digiri 7, yana shan yawancin hasken rana. A wannan yanayin, tuni akwai kankara wanda ke iya nuna hasken rana. A saboda wannan dalili, yana kaiwa ga teku da kuma kara fitar da iskar gas na methane da aka ajiye a cikin permafrost.

Permafrost ƙasa ce da ta daskarewa shekara da shekaru. Wannan shine abin da muka ambata a baya lokacin da muke magana game da kankara mai shekaru da yawa.

Jirgin ruwa

Wannan rafin jet shine menene ya raba sandar arewa daga ƙananan iska latitude. Narkewar kankara a cikin wannan yanki yana jinkirta rafin jet. Wannan yana samar da tsarin yanayi kamar fari, ambaliyar ruwa da raƙuman zafi suna da ƙarfi da ƙarfi. Idan wannan tasirin ya ci gaba a kan lokaci, samar da abinci a duniya na iya kasancewa cikin haɗari mai tsanani.

Ina fatan cewa tare da wannan bayanin zaku iya koyo game da sakamakon narkar da shi.


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