Ngamazinga okushisa atholakele ngaphansi kuka-20 degrees centigrade Futhi njengoba ulwandle lweqhwa lungaphezu kwemitha ubukhulu, ubusika base-Arctic buyinselelo ngokuphelele kubaphenyi abaqoqa imininingwane eyisisekelo yolwandle, njengokuqhutshwa kwamanzi, izinga lokushisa nobuningi.
Kubaphenyi abanjengoGuy Williams, obelokhu ezulazula kulezi zingxenye kusukela ngo-1999, nozakwabo, idatha ivela emthonjeni ongalindelekile. Izimpawu ziyakwazi ukulandelela olwandle futhi zinikeze imininingwane ebingaba nzima kakhulu ukuyithola. Izimpawu ezigqoke amadivayisi we-micro-CTD ivumela ukuthi zihlole zibheka izilwandle, okusho ukuthi zingakwazi konke ngokuma kolwandle.
Yakhelwe ososayensi e-University of St Andrews's, labo Amadivayisi manje ayakwazi ukulandelela ukunyakaza kwezimpawu njengoba kudabula izindawo ezahlukahlukene zasolwandle. Kukalwa ngamakhulu amagremu, amadivayisi afakwa ezinhlokweni zezimpawu ngohlobo lwe-resin futhi ahlala njalo aze ahlukaniswe, okuvame ukuba unyaka. Izinzwa ziyakwazi ukukala i-CTD nedatha yendawo njalo ngemizuzwana emine bese ithumela ingxenye yayo ngesathelayithi.
Uyabona ukuthi bawela kanjani uLwandle lwaseNingizimu kanye nalabo amaphrofayili aqondile Ithathwe lapho icwiliswa kuzo zonke izinhlobo zemibala. UWilliams nethimba lamanye amazwe bakwazile ukuhlola idatha eqoqwe kusuka ku-2011 kuya ku-2013 ngophawu lwezindlovu. Yini ebenze bakwazi ukwazi ukuthi isifunda esisempumalanga ye-Antarctica besigoqwe ngohlobo lwamanzi abandayo asiza ukuhambisa ukusakazwa kwezakhamzimba kanye namagesi ancibilikile azungeze izilwandle zomhlaba.
Akugcinanga lapho ngemininingwane eveziwe eshiywe lapha, kepha bathole ukuthi amashalofu eqhwa okhiye bokugcina uhlelo. Amanzi ahlanzekile aphuma ekuncibilikeni kweqhwa, aphazamisa ukukhiqizwa kwalawo manzi aminyene ngokuhamba kwesikhathi, okungaholela ekwehliseni imisinga yolwandle lomhlaba njengoba iplanethi iqhubeka nokufudumala. Kuyisiqephu esiyisihluthulelo kule phazili, ngokusho kwababhali bezolwandle abafanayo.
Kunjalo izimvu zamanzi azikwazi ukuxazulula yonke into, ngoba abakwazi ukubhukuda ngaphansi kwamashalofu eqhwa, kodwa bayakwazi ukunikeza imininingwane ebalulekile yokuqonda imisinga yolwandle.