Tottenham Glacier shine mafi girma a gabashin Antarctica kuma narkewarta yana kara sauri saboda karuwar iska a Kudancin Tekun. Tare da dumamar yanayi, dunkulen kankara suna narkewa cikin hanzari da sauri kuma idan muka kara zuwa wannan iskar dake dauke su zuwa ruwan dumi, zafinsu zai faru da wuri.
Shin kuna son sanin yanayin glacier na Tottenham?
Tottenham glacier ya narke da sauri
Shirin Antarctic na Ostiraliya yana ci gaba da lura da yanayin ƙanƙarar kankara ta Antarctic. Gilashin lantarkin shine mafi girma a gabashin Antarctica kuma ana ƙara bayyana narkewarta, saboda iskoki suna karawa da karfi kuma tana turawa zuwa ruwa mai dumi na gabar tekun Antarctic wanda ya ratsa ƙasa da ɓangaren kankarar.
Cigaban shigarwar ruwa mai dumi a cikin ɓangaren kankara na kankara sa shi narkewa da sauri. Wannan ƙaddamarwa ta dogara ne akan haɗuwa da hotunan tauraron dan adam, bayanan iska, da abubuwan da ke cikin teku. A sarari yake yadda sashin ƙananan ke narkewa cikin sauri kuma yana hanzarta motsi da kankarar zuwa cikin teku.
“Ayyukanmu suna ba da shaidar haɗin keɓaɓɓu a watsa zafi daga yanayi ta cikin teku zuwa kan kankara, "in ji daya daga cikin masu binciken, David Gwyther, daga Jami'ar Tasmania, a cikin wata sanarwa.
Saboda canjin yanayi, saurin iska yana canzawa a Tekun Kudancin kuma ana hasashen wannan zai karu da yawa, saboda haka, gilashin lantarkin zai narke da sauri, yana ba da gudummawa ga hauhawar duniya a matakin teku.
Windarfin iska da ruwan dumi
Abubuwan da ke tasiri ga narkewar kankara sune iska da zafin ruwan. A lokacin da iska ta fi karfi, ruwan da ke saman yana motsawa kuma an maye gurbinsa da ruwa mai dumi da dumi, don haka lokacin da ya shafi glaciers, yana hanzarta narkewar tasu.
Kankara ya fitar da murabba'in kilomita 538.000 a gabashin Antarctica kuma yana zubar da tan miliyan 70.000 na kankara kowace shekara, bisa ga bayanin kula na Antarctic Division na Australiya.