Thaw ra'ayi ne da ke haifar da rikice-rikice. A gefe guda, wannan abin tunawa ne na bazara, saboda komai yana narkewa, yana da dumi a waje. Ga wasu, kalmar na iya kasancewa da alaƙa da laka, slush da kududdufai. A lokaci guda, idan muka yi la'akari da wannan tsari daga tsarin kimiyya, to akwai bangarorin masu kyau da marasa kyau.
Thaw tsari ne na halitta wanda yake dacewa da yanayin yanayin ƙasa da yanayin arewacin duniya. Inda babu hunturu tare da alamun dusar ƙanƙara, irin wannan lamari ba zai iya zama ba. Bugu da kari, ya kamata a sani cewa haduwar wannan lokacin tare da bazara ba shi da cikakke daidai - yana nufin sauyin canji a yanayin zafi kawai a lokacin sanyi, lokacin da yanayin zafi sama da sifili na kwanaki da yawa ya zo. A kan titi a wannan lokacin yana iya zama hadari ko, akasin haka, rana - duk ya dogara da dalilin bayyanar irin wannan tsarin na ɗabi'a.
Zai zama alama cewa mummunan abu shine cewa a tsakiyar hunturu zaka iya jin daɗin bazara har tsawon kwanaki. Amma, a ƙarshen narkewar, kankara kusan koyaushe tana shiga. Bugu da kari, idan yanayin zafin da ke sama ya dade sosai, to tsirrai na iya hango shi bisa kuskure, don haka farkawarsu ta fara. Saurin farko na sanyi ya sake haifar da mutuwar gonaki.
Irin
Gabaɗaya, ana ɗaukar nau'ikan nau'ikan tsari guda biyu:
- advective - waɗannan nau'ikan narke, a matsayin doka, suna faruwa a farkon lokacin hunturu, kuma har ma suna iya wucewa har zuwa hutun Sabuwar Shekara. Wannan tsari na halitta yana faruwa ne saboda yawan dumbin iska, musamman daga Tekun Atlantika. Yanayi a wannan lokacin yawanci hadari ne;
- radiation - ire-irensu na narkewa suna faruwa a ƙarshen hunturu da farkon Maris. A wannan lokacin, yanayi, akasin haka, yana da rana, don haka mutane galibi suna tunanin cewa bazara ya riga ya zo. A zahiri, wannan yaudara ce - bayan fewan kwanaki, sanyi ya sake dawowa.
Wasu lokuta siffofin biyu na sama suna cakuɗe. A waɗannan kwanakin, ƙila za a sami canji mai kaifi a yanayin zafin yau da kullun - da rana yana iya zama dumi sosai, kuma da daddare akwai sanyi da ma tsananin sanyi. Ya tafi ba tare da faɗi cewa irin waɗannan shararrun yanayi ba su da tasiri mai kyau a kan ciyayi.
Menene haɗarin?
Da farko kallo, babu wani abu mai mahimmanci a nan - menene ba daidai ba ga bazara da ke zuwa na fewan kwanaki? A halin yanzu, akwai mafi mummunan a nan fiye da tabbatacce. Bugu da ƙari, wannan ya shafi ba kawai ga shuka ba, kamar yadda aka ambata a sama.
Tabbas, mafi girman lalacewa, ana yi ne akan ayyukan noma na ɗan adam - saboda ɗumamar ɗumi, dusar kankara ta rikice, sabili da haka, tsire-tsire basu da kariya daga sabon sanyi.
Irin wannan tsallewar zafin jiki na da haɗari ga mutumin da kansa. Da farko dai, ya kamata a san cewa bayan duk wani narkewa, kankara ke shigowa, kuma wannan yana haifar da hadurran hanya, katsewar hanyoyin sadarwa, raunin masu tafiya. Hakanan, likitoci sun lura cewa sauye-sauye kwatsam na zafin jiki na zama barazana ga mutanen da ke fama da cututtukan zuciya. Wannan kuma bashi da tasiri mai kyau akan lafiyar hauka.