"Manje sekuyisikhathi sokuqala ukulungiselela imiphumela yezikhukhula engase ibe khona echibini nasemfuleni iMendenhall."
I-Suicide Basin isiqalile ukugeleza phezu kwedamu layo leqhwa futhi abantu abasezansi komfula iMendenhall Glacier kufanele balungiselele imiphumela yezikhukhula, kodwa bekungekho nkomba yokuthi kusukela phakathi kwamabili ngoLwesihlanu kuzophuma amanzi esikhukhuleni esiqhumayo, ngokusho kwezikhulu zeNational Weather Service Juneau.
Lesi sitsha, esiye sathola ukukhishwa kwamanzi minyaka yonke okwaziwa ngokuthi i-jökulhlaups kusukela ngo-2011, sigcwele futhi “ukwehla kwamanzi okuhambisana namanzi agcwele idamu leqhwa kutholakale ngoLwesine ekuseni,” ngokusho kwesitatimende se-NWS Juneau esikhishwe ngo-11 ekuseni ngoLwesine kuwebhusayithi yokuqapha i-Suicide Basin. Lesi sitatimende siphawula ukuthi kuthathe izinsuku eziyisithupha kusukela ngesikhathi isitsha sigcwele kuze kube yilapho ukukhishwa kwamanzi okukhulu kwenzeka ngonyaka odlule.
“Lapho nje kutholwa ubufakazi bokuthi amanzi ageleza ngaphansi kweqhwa, kuzokhishwa Isexwayiso Sezikhukhula,” kusho isitatimende.
Isibuyekezo esanyatheliswa ngo-9 ekuseni ngoLwesihlanu sithe “isimo asikashintshi” ngosuku olwedlule.
U-Andrew Park, isazi sezulu esiteshini esiseduze neqhwa, uthe engxoxweni ngoLwesine ekuseni ukuthi ukuchitheka kwamanzi “akusho ukuthi kukhona ukukhishwa kwamanzi okwenzekayo njengamanje.”
“Yilowo umyalezo oyinhloko — esiwaziyo ukuthi ukhona futhi simele ukuthola ulwazi olwengeziwe,” kusho yena.
Kodwa-ke, kubantu bendawo "manje sekuyisikhathi sokuqala ukulungiselela imiphumela yezikhukhula engaba khona," kusho isitatimende esikhishwe yi-NWS Juneau.
Kusukela ngoLwesine ekuseni, izinga lamanzi oMfula iMendenhall belingamafidi angu-6.43, uma kuqhathaniswa namamitha angaba ngu-4 ekuqaleni kokukhishwa kwawo ngonyaka odlule. Kodwa uPark uthe isici esibalulekile ebunzimeni banoma yikuphi ukukhukhula kulo nyaka kuzoba ukuthi amanzi aphuma ngokushesha kangakanani esitsheni lapho idamu leqhwa liphuka.
“Uma uvuza kancane akuyona inkinga ngempela,” kusho yena. “Kodwa khipha wonke lawo manzi ngokushesha unezinkinga ezinkulu.”
I-US Geological Survey ifake imishini emisha yokuqapha ebhulohweni loMfula iMendenhall kuBack Loop Road ngoLwesine ekuseni ukusiza ekuqondiseni amalungiselelo okukhipha amanzi eSuicide Basin. Ngonyaka odlule lapho kukhishwa amanzi amarekhodi ngo-Agasti 5, i-USGS ithembele kuphela ku-gauge yayo yomfudlana iMendenhall Lake.
URandy Host, isazi samanzi e-USGS, uthe ijubane lizovumela ukubhekwa okwengeziwe kwamanzi ezikhukhula emfuleni.
“Kuzodlala isiteji, lokho esikubiza ngokuthi ukuphakama kwe-gage, njengokuthi umfula uphakeme kangakanani,” esho. “Bese kuzophinde kudlale ijubane lobuso. Kuzolinganisa ukuthi amanzi ashesha kangakanani ebusweni.”
Ingxenye enkulu yoMfula iMendenhall manje igcwele amatshe ukuvikela izakhiwo ngemuva kokuba izikhukhula zangonyaka odlule zigugule kakhulu ugu lomfula. Izikhukhula zabhidliza kancane noma ngokuphelele izindlu ezintathu kanti ezinye izindlu ezingaphezu kwamashumi amathathu nane zabhekana nomonakalo ohlukahlukene.
U-Amanda Hatch, ondlu yakhe yagcwala amanzi angamasentimitha ayisishiyagalombili endaweni yokukhasa ngonyaka odlule, uthe ukulungiswa okukhulu ukuze kuqinisekiswe ikhaya lomndeni wakhe kusanda kuqedwa.
“Asikhathazekile kakhulu ngoba sesiphakamise indlu ngamafidi amane,” kusho yena. “Kodwa sinemoto kagesi, ngakho uma ikhukhula sizoyithutha imoto siye emgwaqweni siye endlini yomngane. Kodwa sesikulungele.”
Indawo yokucasha endlini nayo yaqiniswa ukuze ivikeleke ezikhukhuleni, kusho uHatch. Uthe umshwalense awuzange ukhokhele umonakalo ngonyaka odlule, kodwa usizo lwezinhlekelele kanye nokuxhaswa ngezimali okufunwa yi-federal Small Business Association kwasiza ekwenzeni ukulungiswa nokuthuthukiswa kube nokwenzeka.
Ngaphandle kwalokho, uHatch uthe, akukho okuningi okungenziwa ngaphandle kokuqapha okwenzekayo.
“Akunakwaziwa ukuthi kuzohamba kanjani, akunjalo?” esho. “Kungaba phezulu. Kungaba ngaphansi. Kungaba kancane. Kufanele silinde ukubona. Ngiyajabula ukuthi uhlu lwethu seluqediwe ngakho akudingeki sikhathazeke ngakho.”
UMarty McKeown, onendlu ewonakele kakhulu okwashiya imbobo evulekile ngaphansi kwegumbi lokuphumula, uthe usalungisa indlu kanye ne-patio eyakhukhuleka - futhi ngaphandle kwemali mboleko ye-SBA akatholanga impumuzo ayeyilindele edolobheni noma kwezinye izinhlaka zikahulumeni. Uthe "ukhathazekile kakhulu" ngesimo samanje, kodwa akethuki njengoba eqapha isimo se-basin.
“Sizobheka umfula futhi sithathe isinyathelo uma kudingeka,” kusho yena. “Ngeke ngiqale ukuphuma endlini yami. Sizoba nesikhathi uma kwenzeka okuthile.”
Irekhodi elisha lemvula ngoJulayi labekwa eJuneau ngenyanga edlule, ngombiko wokuqala okhombisa amasentimitha angu-12.21 emvula eJuneau International Airport uma kuqhathaniswa nokuphakama kwangaphambilini kwamasentimitha angu-10.4 ngo-2015. Kube nemvula elinganisekayo kuzo zonke izinsuku ngaphandle kwezimbili zenyanga, okuhlanganisa amasentimitha angu-0.77 alinganiswe ngoLwesithathu.
Isibikezelo sasekuqaleni kwesonto elizayo sidinga ukuthi isibhakabhaka sicwebe futhi kube nokuphakama okufika eminyakeni yawo-70.
URobert Barr, iphini lomphathi wedolobha weDolobha kanye neSifunda saseJuneau, uthe imvula enkulu eJuneau iyakhathaza ngoba uma umfula uphakeme, kunendawo encane yokukhululwa kwamanzi ukuze kugcwaliswe umfula. Uthe i-CBJ ithola imibiko yansuku zonke yesimo evela ku-NWSJ.
“Basinika ukuqagela kwabo okuhle kakhulu ngokuthi i-jökulhlaup izobukeka kanjani emazingeni ahlukene okukhishwa uma ibizokhishwa ngesikhathi sombiko,” kusho yena. “Ngakho-ke njalo ntambama sithola lokho. Futhi lokho kusitshela ukuthi uma i-jökulhlaup ikhishwa manje, ku-20% kuya ku-60% wevolumu iyonke ye-Suicide Basin, nansi indlela i-jökulhlaup ezobukeka ngayo. Uma ibizokhishwa ku-100% wevolumu ye-Suicide Basin — eyakhishwa ngonyaka odlule ku-96% — nansi indlela i-jökulhlaup ezobukeka ngayo. Futhi njengamanje uma ibizokhishwa ku-100% kuzoba kubi kakhulu kunonyaka odlule.”
UBarr uthe i-basin ayivamisile ukukhulula ngo-100%. Ngonyaka odlule kwakuyivolumu enkulu kakhulu i-basin eyayiyikhiphe ngesikhathi esisodwa. Kodwa ayikho indlela yokubona ukuthi amanzi azophuma ngokushesha kangakanani.
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Isikhathi sokuthunyelwe: Okthoba-08-2024