"Manje yisikhathi sokuqala ukulungiselela izikhukhula ezingase zibe khona echibini nasemfuleni iMendenhall."
I-Suicide Basin isiqalile ukugeleza phezulu kwedamu layo leqhwa futhi abantu abazansi nomfula iMendenhall Glacier kufanele balungiselele imithelela yezikhukhula, kodwa abukho ubufakazi kusukela maphakathi no-Ekuseni ngoLwesihlanu ukukhululwa kwamanzi esikhukhuleni esiqhumayo kwenzeka, ngokusho kweNational Weather Service Juneau izikhulu.
Umgodi, osekukhishwe minyaka yonke okwaziwa nge-jökulhlaups kusukela ngo-2011, ugcwele futhi "ukwehla kwezinga lamanzi okuhambisana nokugcwala kwamanzi edamu eligcwele iqhwa kutholwe ekuseni ngoLwesine ekuseni," ngokwesitatimende se-NWS Juneau esikhishwe ngo-11 ekuseni ngoLwesine kuwebhusayithi yokuqapha i-Suicide Basin. Isitatimende siphawula ukuthi kuthathe izinsuku eziyisithupha kusukela ngesikhathi isitsha sigcwele kuze kube ukukhishwa okukhulu kwamanzi kwenzeka ngonyaka odlule.
"Ngokushesha uma sekutholakele ubufakazi bokuthi amanzi angaphansi kweqhwa, kuzokhishwa Isexwayiso Sezikhukhula," kuphawula isitatimende.
Isibuyekezo esishicilelwe ngo-9 ekuseni ngoLwesihlanu sithe "isimo asikashintshi" ngosuku olwedlule.
U-Andrew Park, isazi sezulu esiteshini esiseduze neqhwa, uthe engxoxweni ngoLwesine ekuseni ukuchitheka kwamanzi "akusho ukuthi ukukhululwa kuyenzeka njengamanje."
"Lowo ngumyalezo obalulekile - esaziyo ukuthi uyikho futhi silinde ukuthola eminye imininingwane," kusho yena.
Nokho, kubantu endaweni “manje sekuyisikhathi sokuqala ukulungiselela imithelela yezikhukhula engase ibe khona,” isitatimende esikhishwe yi-NWS Juneau siphawula.
Kusukela ngoLwesine ekuseni, izinga lamanzi oMfula i-Mendenhall lalingamamitha angu-6.43, uma kuqhathaniswa namamitha angaba mane ekuqaleni kokukhululwa konyaka odlule. Kodwa uPark uthe into esemqoka ebucayini banoma yiziphi izikhukhula kulo nyaka kuzoba ukuthi amanzi aphuma ngokushesha kangakanani emgodini uma idamu leqhwa liphuka.
“Uma kuvuza okuncane akuyona inkinga ngempela,” kusho yena. “Kodwa khipha wonke lawo manzi ngesikhathi esisodwa unezinkinga ezinkulu.”
I-US Geological Survey ifake imishini yokuqapha emisha ebhulohweni loMfula i-Mendenhall ku-Back Loop Road ngoLwesine ekuseni ukusiza ukuqondisa amalungiselelo okukhishwa kokukhishwa kwe-Suicide Basin. Ngonyaka odlule lapho ukukhishwa okurekhodiwe kwamanzi kwenzeka ngo-Aug. 5, i-USGS yathembela kuphela kugeji yayo yokusakaza ye-Mendenhall Lake.
URandy Host, udokotela osebenza ngamanzi e-USGS, uthe i-velocity metric izovumela ukubhekwa okwengeziwe kwamanzi ezikhukhula emfuleni.
“Kuzodlala inkundla, lokhu esikubiza ngokuthi yi-gage height, njengokuthi umfula uphakame kangakanani,” usho kanje. “Bese izokwenza nesivinini esiphezulu. Izokala ukuthi amanzi ashesha kangakanani phezulu.”
Ingxenye enkulu yoMfula iMendenhall manje isigcwele amatshe ukuze kuvikelwe izakhiwo ngemva kokuba izikhukhula zangonyaka odlule ziguguleke kakhulu osebeni lomfula. Izikhukhula zicekele phansi kancane noma zacekela phansi amakhaya amathathu kanye nezinye izindawo zokuhlala ezingaphezu kweshumi nambili zibe nomonakalo ohlukahlukene.
U-Amanda Hatch, omuzi wakhe wagcwala amanzi ngamasentimitha ayisishiyagalombili endaweni yokukhasa ngonyaka odlule, uthe ukulungiswa kabusha kokuvikela umuzi womndeni wakhe kusanda kuqedwa.
“Asikhathazekile neze ngoba indlu siyiphakamise ngamamitha amane,” kusho yena. Kodwa sinayo imoto kagesi, ngakho uma igcwala izikhukhula sizobe sinyusa imoto emgwaqweni siyiyise emzini womngane. Kodwa sesimi ngomumo.
Indawo yokukhasa yendlu iphinde yaqiniswa ukuze ivikeleke ekukhukhuleni, kusho uHatch. Uthe umshwalense awuzange uvale umonakalo ngonyaka odlule, kodwa usizo lwezinhlekelele kanye noxhaso lwezimali olufunwa yiNhlangano Yezamabhizinisi Amancane kusize ukulungisa nokulungisa kwenzeke.
Ngaphandle kwalokho, uHatch uthe, akukho okuningi okumele kwenziwe ngaphandle kokuqapha okwenzekayo.
“Akukho okushiwo ukuthi kuzohamba kanjani, akunjalo?” kusho yena. "Ingaba phezulu. Ingase ibe ncane. Ingase ihambe kancane. Kuzomele silinde ukuze sibone. Ngiyajabula ukuthi uhlu lwethu seluqediwe ngakho akufanele sikhathazeke ngempela ngalo."
UMarty McKeown, umuzi wakhe owalimala kakhulu owashiya imbobo ngaphansi kwegumbi lokuphumula, uthe usalungisa ikhaya kanye nevulandi eligugulekile - futhi ngaphandle kwemali mboleko ye-SBA akakutholanga ukukhululeka ayekulindele edolobheni noma kwezinye izinhlaka zikahulumeni. Uthe “unezinga eliphezulu lokukhathazeka” ngesimo samanje, kodwa akethuki njengoba eqaphe isimo somgodi.
“Sizobuka umfula bese sithatha izinyathelo uma kudingeka,” usho kanje. “Ngeke ngiqale ngiphume endlini yami sizoba nesikhathi uma kukhona okwenzekayo.
Irekhodi elisha lemvula langoJulayi labekwa ngoJuneau phakathi nenyanga edlule, nombiko wokuqala obonisa imvula engu-12.21 amayintshi e-Juneau International Airport uma kuqhathaniswa nokuphakama kwangaphambilini okungamayintshi angu-10.4 ngo-2015. Kube nemvula elinganisekayo kuzo zonke ngaphandle kwezinsuku ezimbili zenyanga, okuhlanganisa amayintshi angu-0.77 akalwa ngoLwesithathu.
Isibikezelo ekuqaleni kwesonto elizayo sibiza ukuthi isibhakabhaka siphele kanye nokuphakama okuphezulu kufinyelele kuma-70s.
URobert Barr, isekela lemenenja yedolobha eDolobheni naseBorough yaseJuneau, uthe imvula enkulu eJuneau iyakhathaza ngoba uma umfula uphakeme, iba nesikhala esincane sokudedelwa kwamanzi ukuze agcwalise umfula. Uthe i-CBJ ithola imibiko yesimo nsuku zonke evela ku-NWSJ.
"Basinikeza ukuqagela kwabo okuhle mayelana nokuthi i-jökulhlaup izobukeka kanjani emazingeni ahlukene okukhishwa uma izokhishwa ngesikhathi salowo mbiko," esho. Ngakho-ke njalo ntambama siyakuthola lokho. Futhi ngokuyisisekelo lokho okusitshelayo ukuthi uma i-jökulhlaup ikhishwa njengamanje, ku-20% kuya ku-60% wevolumu ephelele ye-Suicide Basin, nansi indlela i-jökulhlaup engabukeka ngayo. Uma ikhishwe ku-100% wevolumu ye-Suicide Basin - okuyinto ngonyaka odlule ikhishwe ku-96% ibukeka kanjani manje. ikhishwe ngo-100% izoba yimbi kakhulu kunonyaka odlule.”
Isitsha asivamisile ukukhipha ngo-100%, kusho uBarr. Ngonyaka odlule bekuyivolumu enkulu kunazo zonke ezakhishwa ngesikhathi esisodwa. Kodwa ayikho indlela yokusho ukuthi amanzi azophuma ngokushesha kangakanani.
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Isikhathi sokuthumela: Oct-08-2024