“Ngoku lixesha lokuba siqale ukulungiselela iimpembelelo ezinokubakho zezikhukula ecaleni kwechibi laseMendenhall nomlambo.”
I-Suicide Basin iqalile ukugeleza phezulu kwedama layo lomkhenkce kunye nabantu abasezantsi ukusuka kwi-Glacier yaseMendenhall kufuneka balungiselele iimpembelelo zesikhukula, kodwa akukho nto ibonisa ukuba phakathi kwentsasa ngoLwesihlanu ukukhutshwa kwamanzi kwisikhukula sokuqhuma kwenzeka, ngokutsho kweNkonzo yeMozulu yeSizwe yamagosa kaJuneau.
Isitya, esiye safumana ukukhutshwa konyaka okwaziwa ngokuba yi-jökulhlaups ukusukela ngo-2011, sigcwele kwaye "ukuhla komgangatho wamanzi okuhambelana nokuphuphuma kwamanzi kwidama lomkhenkce kufunyenwe kwangoko ngoLwesine ekuseni," ngokwengxelo ye-NWS Juneau ekhutshwe ngentsimbi ye-11 kusasa ngoLwesine kwiwebhusayithi yokubeka iliso kwi-Suicide Basin. Ingxelo iphawula ukuba yathatha iintsuku ezintandathu ukusuka kwixesha apho isitya sasigcwele kude kube ukukhutshwa okukhulu kwamanzi kwenzeka kunyaka ophelileyo.
“Kamsinya nje ukuba ubungqina bokukhutshwa kwamanzi angaphantsi komkhenkce bufunyenwe, iSilumkiso soMkhukula siya kukhutshwa,” utshilo ingxelo.
Uhlaziyo olupapashwe nge-9 am ngoLwesihlanu luthe "imeko ayitshintshanga" kusuku oludlulileyo.
U-Andrew Park, isazi ngemozulu kwisikhululo esikufutshane nomkhenkce, uthe kudliwanondlebe ngoLwesine ekuseni ukuchitheka kwamanzi "akuthethi ukuba ukukhululwa kuyenzeka ngoku."
“Lo ngowona myalezo uphambili — esiwaziyo ukuba ukho kwaye sime ngolunye ulwazi,” utshilo.
Nangona kunjalo, kubantu abakummandla "ngoku lixesha lokuqalisa ukulungiselela iimpembelelo ezinokubakho zezikhukula," isitatimende esikhutshwe ngu-NWS Juneau amanqaku.
NgoLwesine ekuseni, umgangatho wamanzi woMlambo waseMendenhall wawungama-6.43 ezinyaweni, xa kuthelekiswa neenyawo ezine ekuqaleni kokukhululwa konyaka odlulileyo. Kodwa iPark ithe eyona nto iphambili kubunzima baso nasiphi na isikhukhula kulo nyaka iya kuba yindlela amanzi aphuma ngayo ngokukhawuleza kwisitya xa idama lomkhenkce liqhekeka.
“Ukuba unendawo evuzayo encinci ayiyongxaki ngenene,” utshilo. "Kodwa khupha onke loo manzi kwangoko uneengxaki ezinkulu."
I-US Geological Survey ifake izixhobo ezitsha zokubeka iliso kwibhulorho yoMlambo i-Mendenhall kwi-Back Loop Road ngoLwesine ekuseni ukunceda ukukhokela amalungiselelo okukhutshwa kokukhululwa kwe-Suicide Basin. Kunyaka ophelileyo xa ukukhutshwa kwerekhodi yamanzi kwenzeka ngo-Agasti 5, i-USGS yayithembele kuphela kwi-gauge yayo ye-Mendenhall Lake.
URandy Host, isazi se-hydrologist kunye ne-USGS, uthe i-metric yesantya iya kuvumela uphononongo olongezelelweyo lwamanzi ezikhukula emlanjeni.
“Iza kwenza iqonga, into esiyibiza ngokuba yi-gage height, njengokuphakama komlambo,” utshilo. “Kwaye ke izakwenza isantya somphezulu.
Uninzi loMlambo iMendenhall ngoku luzaliswe ngamatye ukukhusela izakhiwo emva kokuba izikhukula zonyaka ophelileyo zikhukulise kakhulu iindonga zomlambo. Isikhukhula sitshabalalise ngokuyinxenye okanye ngokupheleleyo amakhaya amathathu kunye nezinye iindawo zokuhlala ezingaphezu kweshumi elinesibini zibe nomonakalo ohlukeneyo.
U-Amanda Hatch, umzi wakhe wakhukuliswa ngamanzi i-intshi ezisibhozo kwindawo yokukhasa kulo nyaka uphelileyo, uthe ulungiso olukhulu lokukhusela ikhaya losapho lwakhe lugqityiwe.
“Asinaxhala kakhulu kuba siyiphakamise ngeenyawo ezine indlu,” utshilo. Kodwa sinayo imoto yombane, ngoko ukuba ikhukulisa siza kube sinyusa inqwelo-mafutha esitratweni siyise kwindlu yomhlobo.
Indawo yokukhasa yendlu nayo yomelezwa ukuze ikhuseleke kwizikhukula, utshilo uHatch. Uthe i-inshorensi ayizange iwugubungele umonakalo kulo nyaka uphelileyo, kodwa uncedo lwentlekele kunye nenkxaso-mali efunwa nguMbutho wamaShishini amaNcinci ancedisa ukulungisa nokuphucula.
Ngaphaya koko, uHatch uthe, akukho nto ingako inokwenziwa ngaphandle kokubeka iliso okwenzekayo.
“Akukho nto ixelayo ukuba iza kuhamba njani, akunjalo?” watsho. "Inokuba phezulu. Inokuba ncinci. Ingacotha. Kufuneka silinde nje ukuze sibone. Ndiyavuya ukuba uluhlu lwethu lwenziwe ukuze singabi naxhala malunga nalo."
UMarty McKeown, ikhaya lakhe lafumana umonakalo omkhulu owashiya umngxuma ovulekileyo ecaleni ngaphantsi kwegumbi lokuhlala, uthe usalungisa ikhaya kunye ne-patio ekhukulisekileyo - kwaye ngaphandle kwe-SBA mboleko ayizange ifumane isiqabu ebesilindele kwisixeko okanye kwamanye amaqumrhu karhulumente. Uthe "unenkxalabo ephezulu" malunga nemeko yangoku, kodwa akothuki njengoko ebeka esweni imeko yesitya.
“Sizakubukela umlambo kwaye sithathe amanyathelo ukuba kuyimfuneko,” utshilo. “Andizuqalisa ukufuduka endlwini yam, siza kuba nexesha ukuba kukho into eyenzekayo.”
Irekhodi elitsha lemvula kaJulayi libekwe ngoJuniau ngenyanga edlulileyo, kunye nengxelo yokuqala ebonisa i-intshi ye-12.21 yemvula kwi-Airport ye-Juniau International xa kuthelekiswa nokuphakama kwangaphambili kwee-intshi ze-10.4 ngo-2015. Kwakukho imvula enokulinganiswa kuzo zonke kodwa iintsuku ezimbini zenyanga, kubandakanywa i-0.77 intshi elinganiswe ngoLwesithathu.
Uqikelelo lwengqikelelo kwasekuqaleni kweveki ezayo lufuna ukucocwa kwesibhakabhaka kunye namaqondo aphakamileyo afikelele kwiminyaka yama-70s.
U-Robert Barr, usekela-manejala wesixeko kwiSixeko kunye ne-Borough yaseJuneau, uthe imvula enkulu e-Juneau iyaxhalabisa kuba xa umlambo uphezulu, kukho indawo encinci yokukhutshwa kwamanzi ukuze azalise umlambo. Uthe i-CBJ ifumana iingxelo zemihla ngemihla ezivela kwi-NWSJ.
"Basinika eyona ngqikelelo yabo malunga nokuba i-jökulhlaup iya kujongeka njani kumanqanaba ahlukeneyo okukhutshwa ukuba ibinokukhutshwa ngexesha laloo ngxelo," utshilo. "Ngoko yonke imva kwemini sifumana loo nto. Kwaye ngokusisiseko oko kusixelela ukuba i-jökulhlaup ikhutshwe ngoku, kwi-20% ukuya kwi-60% yevolumu epheleleyo ye-Suicide Basin, nantsi into enokuthi i-jökulhlaup ibonakale. ikhutshwe nge-100% iya kuba mbi ngakumbi kunonyaka ophelileyo. "
Isitya asiqhelekanga ukukhulula kwi-100%, utshilo uBarr. Kulo nyaka uphelileyo ngowona mqulu wawukhutshiweyo kwisitya esinye. Kodwa akukho ndlela yokuxela ukuba amanzi aya kuphuma ngokukhawuleza kangakanani.
Nceda ucofe ikhonkco elingezantsi ukuze ufumane iinkcukacha ezithe vetshe
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Ixesha lokuposa: Oct-08-2024