Ngamaqondo obushushu afunyenweyo phantsi kwe 20 degrees centigrade nangolwandle lomkhenkce ngaphezulu kwemitha, ubusika beArctic bucelomngeni ngokupheleleyo kubaphandi abaqokelela ezona nkcukacha zisisiseko zolwandle, ezinje ngokuqhutywa kwamanzi, ubushushu kunye noxinano.
Kubaphandi abanjengoGuy Williams, obezula-zula ezi ndawo ukusukela ngo-1999, kunye noogxa bakhe, idatha ivela kumthombo ongalindelekanga. Amatywina anakho ukulandela umkhondo wolwandle kunye nokubonelela ngedatha ekunokuba nzima kakhulu ukuyifumana. Iimpawu ezinxibe izixhobo ezincinci ze-CTD ivumela ukuba baphonononge ngokuthe nkqo iilwandle, nto leyo ethetha ukuba zingazi yonke into ngobume bolwandle.
Eyilwe zizazinzulu kwiYunivesithi yaseSt Andrews, ezo izixhobo ngoku ziyakwazi ukulandela umkhondo ukuhamba kweempawu zokutywina njengoko zinqumla kwiindawo ezahlukeneyo zaselwandle. Ukulinganisa kumakhulu egremu, izixhobo ziqhotyoshelwe kwiintloko zamatywina ngohlobo lwentlaka kwaye zihlala njalo de kube kukhutshiwe, okuhlala kungunyaka. Ii-sensors ziyakwazi ukulinganisa i-CTD kunye nedatha yendawo rhoqo kwimizuzwana emine kunye nokuthumela isahlulo sayo ngesathelayithi.
Uyabona ukuba bawela njani uLwandle lwaseMazantsi kunye nezo iinkangeleko nkqo Ithathwe xa ifakwe emanzini kuzo zonke iintlobo zemibala. U-Williams kunye neqela lamanye amazwe babenako ukuvavanya idatha eqokelelwe ukusuka kwi-2011 ukuya kwi-2013 ngamatywina endlovu. Yintoni eyabavumela ukuba bazi ukuba indawo esempuma yeAntarctica yayisongelwe ngohlobo lwamanzi abandayo anceda ukuqhuba ukujikeleza kwezondlo kunye neegesi ezanyibilika zijikeleze iilwandle zomhlaba.
Idatha etyhiliweyo ayishiywanga apha kuphela, kodwa bafumanisa ukuba iishelfu zomkhenkce zikhona izitshixo zokugcina inkqubo. Amanzi acocekileyo aphuma ekunyibilikeni umkhenkce, ethintela imveliso yezixineneyo zamanzi ngokuhamba kwexesha, ezinokuthi zikhokelele ekucutheni imisinga yolwandle jikelele njengoko iplanethi iqhubeka ishushu. Liqhekeza eliphambili kwiphazili, ngokutsho kwabalinganiswa bolwandle.
Kunjalo Amatywina akanakusombulula yonke into, kuba abakwazi ukuqubha phantsi kweeshelfu zomkhenkce, kodwa bayakwazi ukubonelela ngedatha ebalulekileyo yokuqonda imisinga yolwandle.