me yasa dusar ƙanƙara fari ce

me yasa dusar ƙanƙara fari ce

Dusar ƙanƙara ita ce abin da ake kira daskararren ruwa wanda ya yi hazo. Ba kome ba ne face ruwa a cikin wani yanayi mai ƙarfi wanda ke faɗowa kai tsaye daga gajimare. Dusar ƙanƙara ta ƙunshi lu'ulu'u ne na ƙanƙara waɗanda yayin da suke gangarowa zuwa saman duniya, suna rufe komai da kyakkyawan bargo. Duk da haka, ko da yake wannan bargo fari ne, mun san cewa sararin sama a bayyane yake. Wannan ya sa mutane da yawa tambaya me yasa dusar ƙanƙara fari ce.

Don haka, za mu sadaukar da wannan labarin don gaya muku menene manyan dalilan da ke sa dusar ƙanƙara ta yi fari idan ƙanƙara ta bayyana.

halayen dusar ƙanƙara

ƙasa mai dusar ƙanƙara

Don sanin dalilin da yasa dusar ƙanƙara ke fari, dole ne mu fara sanin menene halayensa. Snow ƙananan lu'ulu'u ne na ruwan daskararre wanda ana samun su ta hanyar shaƙan digon ruwa a saman troposphere. Lokacin da waɗannan ɗigon ruwa suka yi karo, sai su haɗu su haifar da dusar ƙanƙara. Lokacin da nauyin dusar ƙanƙara ya fi ƙarfin iska, zai faɗi.

Don yin wannan, zafin jiki a cikin abin da dusar ƙanƙara ke samuwa dole ne ya kasance ƙasa da sifili. Tsarin samuwar iri ɗaya ne da na dusar ƙanƙara ko ƙanƙara. Iyakar abin da ke tsakanin su shine yanayin da aka samu.

Lokacin da dusar ƙanƙara ta faɗo ƙasa, takan taru kuma tana yin yadudduka. Dusar ƙanƙara tana ci gaba da adanawa muddin yanayin zafin jiki ya kasance ƙasa da daskarewa. Idan yanayin zafi ya tashi, dusar ƙanƙara za ta fara narkewa. Yawan zafin jiki wanda dusar ƙanƙara ke tasowa shine -5°C. Yana iya faruwa a yanayin zafi mafi girma, amma ya fi yawa a -5 ° C.

Mutane sukan danganta dusar ƙanƙara da matsanancin sanyi, lokacin a zahiri mafi yawan dusar ƙanƙara tana faruwa ne lokacin da zafin ƙasa ya kai 9°C ko sama da haka. Wannan shi ne saboda ba a la'akari da wani abu mai mahimmanci: zafi na muhalli. Danshi shine yanayin yanayin kasancewar dusar ƙanƙara a wuri. Idan yanayin ya bushe sosai, ko da yanayin zafi ya yi ƙasa sosai, ba zai dusar ƙanƙara ba. Misalin wannan shi ne busassun kwari na Antarctica, inda akwai kankara amma ba dusar ƙanƙara ba.

Wani lokaci dusar ƙanƙara takan bushe. Kusan waɗancan lokutan ne lokacin da dusar ƙanƙara ta samo asali ta yanayin zafi ta wurin busasshiyar iska mai yawa ta juyar da dusar ƙanƙara zuwa foda wanda baya tsayawa a ko'ina, cikakke ga waɗannan wasannin dusar ƙanƙara.

Rufin dusar ƙanƙara bayan dusar ƙanƙara yana da bangarori daban-daban dangane da yadda ayyukan yanayi ke tasowa. Idan akwai iska mai ƙarfi, dusar ƙanƙara mai narkewa, da sauransu.

me yasa dusar ƙanƙara fari ce

dalilin da yasa dusar ƙanƙara ta zama fari dalilai

Yayin da rana da muke gani tana rawaya, wanda shine yadda muke kwatanta ta a zane-zane, hasken da take mayar mana da shi fari ne. An halicci launin rawaya ta hanyar murdiya da yanayi ya haifar. 'Yan sama jannati a sararin samaniya suna kallon rana a matsayin farar fata.

Wannan hasken da muke samu daga taurari shine jimillar dukkan launukan bakan da ake iya gani, kuma sakamakonsa fari ne. Wannan shine ainihin akasin halin da ake ciki tare da zanen. Idan muka hada dukkan kalar gidan, da bakar fata.

Dusar ƙanƙara ta ɗauki wani siffa ta musamman. Dusar ƙanƙara mai faɗowa a zahiri tana faɗowa a cikin nau'i na manyan flakes. An makale iska a tsakanin wadannan flakes. Lokacin da hasken rana ya mamaye kowannen su, sai ta sami canjin matsakaici, daga iska zuwa kankara da kankara zuwa iska. Kuna iya yin ta akai-akai. Har ila yau, sassan suna nunawa a saman lamba ɗaya.

Mahimmin ra'ayi shine fahimtar cewa duk hasken da ke bugun flakes yana kashewa a duk kwatance. Babu wani ɓangare na hasken da ke ɗauka. Don haka farin haske ya bar flakes tare da halaye iri ɗaya kamar yadda hasken ya zo. Don haka dusar ƙanƙara fari ce.

dusar ƙanƙara na launi daban-daban

Dusar ƙanƙara koyaushe fari ce. Duk da haka, ƙila mun gan shi a wasu launuka a wasu hotuna. A Spain, a cikin 'yan shekarun nan, mun ga wuraren shakatawa na ski da dusar ƙanƙara ta rina launin ruwan kasa.

Dalilin ba ya da alaƙa da haske, amma tare da dakatarwar ƙurar da iskoki ke ɗauka daga Arewacin Afirka. Yayin da suke daidaitawa, suna tare da dusar ƙanƙara wanda ke daɗaɗɗen sassan filin wasan ski.

Sa'an nan za mu iya samun dusar ƙanƙara na wasu launuka, amma da zarar ya kasance a ƙasa sai ya zama launi. Wannan shi ne yanayin dusar ƙanƙara mai ƙura, wanda ƙwayoyin cuta na ƙasa ke samarwa waɗanda idan sun haɗu da dusar ƙanƙara, suna rina shi irin wannan launi. Ko baki, idan akwai gurbataccen carbon.

Cikakken bayanin dalilin da yasa dusar ƙanƙara ke fari

Farin dusar ƙanƙara

Dusar ƙanƙara ta ƙunshi flakes, waɗanda lu'ulu'u ne na lu'ulu'u masu daskarewa a kusa da foda. Suna da siffar tauraro kuma suna da hannaye guda shida, kowannensu ya ƙunshi ƴan kwayoyin quintillion. Suna samuwa a cikin gizagizai cike da ɗigon ruwa wanda zafinsa ya ragu zuwa -12ºC. Yayin da flakes ke haɗuwa da juna, iska ta kama. Wannan iska ce ta ba shi launin ruwan dusar ƙanƙara.

Wannan iskar tana watsa haske, wato ta shanye shi tana fitar da shi ta ko'ina kamar kwallon billiard. Haske fari ne domin shine jimillar dukkan launukan bakan gizo: ja, orange, rawaya, kore, blue da violet. Iska tana kunshe da kwayoyin iskar oxygen, nitrogen da iskar gas mai daraja, da kuma wasu abubuwan da aka dakatar da su kamar kura, digon ruwa da lu'ulu'u na ruwa da gishiri.

Kowane nau'in da ke samar da iska yana tarwatsa haske a cikin wani takamaiman launi daidai gwargwado. Wato kowa yana da fifiko ga wani launi wanda ke siffanta hasken da ya sauka a kansu kuma ya bambanta shi da sauran launuka. Alal misali, nitrogen da oxygen suna warwatsa shuɗi da violet da yawa, waɗanda ke fitowa a kowane bangare, yayin da sauran launuka ke barin su wuce cikin layi madaidaiciya. Muna ganin harbin shudi mai haske a kowane bangare.

Duk da haka, iskar da ke makale a cikin sararin da ke tsakanin dusar ƙanƙara ba ita ce iskar da shuɗin sama ke samarwa ba. A ƙarƙashin waɗannan iyakoki, launuka kuma suna watsewa, amma idon ɗan adam ba zai iya godiya da zaɓuɓɓukan launi na abubuwa daban-daban ba. Mun ga cewa hasken ya sake haɗuwa, wanda yake fari.

Irin wannan tasiri yana faruwa tare da gashin gashin polar bear, alal misali. Alkyabbarsa ba fari dusar ƙanƙara ba ce, amma a bayyane. Iskar da ke makale tsakanin gashin kanta ce ke sa ta zama fari ta hanyar watsa haske, kamar a cikin dusar ƙanƙara.

Irin wannan iska wanda ke sa dusar ƙanƙara fari ya ba shi wani yanayi: sakamako mai ban sha'awa. Mu da ke zaune a birane suna lura da kwanciyar hankali da dusar ƙanƙara ke kawowa. Yanayin garin ya yi shiru. Ba don motoci suna tafiya a hankali ba ko kuma mutane suna tafiya ƙasa. Abin da ya faru shi ne dusar ƙanƙara ta kashe sautin. An ƙara da iska a cikin gidan kwano na ciki iskar har yanzu tana makale a cikin dusar ƙanƙara, wanda ke ɓoye ɗimbin ramukan da ke ɓoye iska mai yawa.

dusar ƙanƙara mai launin kore

kore dusar ƙanƙara

Lokacin jin kalmar koren dusar ƙanƙara, abin da mutum zai yi tunani shi ne ciyayi na girma saboda narkewar dusar ƙanƙara ta Antarctic. A halin yanzu, saboda hauhawar yanayin zafi a duniya, farin dusar ƙanƙara yana juyewa kore yayin da algae ke tsiro. Girma shi da yawa zai mayar da shi kore dusar ƙanƙara kuma ya ba shi bayyanar kore mai haske. Ana iya ganin lamarin ko da daga sararin samaniya kuma ya taimaka wa masana kimiyya yin taswira.

Ana tattara duk bayanan godiya ga tauraron dan adam masu iya kallo da ɗaukar hotuna. Abubuwan lura da aka yi a lokacin bazara da yawa a Antarctica an haɗa su tare da tauraron dan adam don kimanta duk wuraren da za a gwada koren dusar ƙanƙara. Za a yi amfani da duk waɗannan ma'auni don ƙididdige yadda saurin algae zai ci gaba da yaduwa a cikin nahiyar saboda sauyin yanayi. Ba abin mamaki ba, haɓakar waɗannan ƙananan algae yana shafar yanayin yanayin duniya.

Albedo na Duniya shine adadin hasken rana da abubuwa daban-daban ke nunawa a sararin samaniya. Daga cikin waɗannan abubuwa muna samun saman da launuka masu haske, gajimare, gas, da dai sauransu. Dusar ƙanƙara na iya nuna har zuwa 80% na hasken rana mai shigowa. Binciken akan kore dusar ƙanƙara shine cewa an rage bayanan albedo zuwa 45%. Wannan yana nufin ƙarin zafi zai iya tsayawa a saman ba tare da an nuna shi baya zuwa sararin samaniya ba.

Mutum na iya tunanin cewa tunda albedo na Antarctica zai ragu, zai zama matsakaicin matsakaicin zafin jiki mai ƙarfafa kai. Duk da haka, dole ne a yi la'akari da bangarori daban-daban waɗanda suka shafi wannan canjin yanayin zafi. Misali, Ci gaban microalgae kuma yana sauƙaƙe ɗaukar carbon dioxide ta hanyar photosynthesis. Wannan yana taimakawa rage hayakin iskar gas, wanda ke taimaka mana rage yanayin zafi.

Sabili da haka, dole ne mu bincika ma'auni tsakanin adadin zafin da Antarctica ke iya riƙewa saboda raguwar albedo na ƙasa da kuma ikon ƙananan algae don ɗaukar carbon dioxide daga yanayi. Kamar yadda kowa ya sani, carbon dioxide iskar gas ce mai gurɓataccen iska tare da ƙarfin rufewa. Don haka, yawan iskar carbon dioxide da ake samu a cikin yanayi, yawan zafin da ake adanawa, yana haifar da tashin hankali.

Ina fatan cewa tare da wannan bayanin za ku iya ƙarin koyo game da dalilin da yasa dusar ƙanƙara ke fari.


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