“Ubu ni cyo gihe cyo gutangira kwitegura ingaruka zishobora guterwa n’imyuzure ku kiyaga n’uruzi rwa Mendenhall.”
Ikibaya cy’abishwe cyatangiye gutemba hejuru y’urugomero rwacyo rw’urubura kandi abantu bo munsi y’urubura rwa Mendenhall bagomba kuba biteguye ingaruka z’imyuzure, ariko nta kimenyetso cyagaragaye kugeza mu gitondo cyo kuwa gatanu ko amazi yavuye mu myuzure yadutse, nk’uko byatangajwe n’abayobozi ba serivisi y’igihugu y’iteganyagihe ya Juneau.
Iki kibaya, cyagiye kigaragara buri mwaka kizwi nka jökulhlaups kuva mu 2011, cyuzuye kandi "igipimo cy'amazi gihuye n'amazi yuzuye ku rugomero rw'urubura cyagaragaye mu gitondo cya kare cyo ku wa Kane," nk'uko itangazo rya NWS Juneau ryasohotse saa kumi n'imwe za mu gitondo ku wa Kane ku rubuga rwa interineti rw'abakurikirana ikibaya cyo kwiyica. Iri tangazo rivuga ko byafashe iminsi itandatu uhereye igihe ikibaya cyuzuye kugeza igihe amazi yarekuwe umwaka ushize.
“Ibimenyetso by’uko amazi yavuye munsi y’ibirwa bito bito bikimara kugaragara, hazatangwa umuburo w’umwuzure,” nk’uko itangazo ribivuga.
Amakuru mashya yasohotse saa cyenda za mu gitondo ku wa gatanu yavuze ko "imiterere itarahinduka" mu munsi ushize.
Andrew Park, umuhanga mu by’ikirere kuri sitasiyo iri hafi y’urubura, yavuze mu kiganiro yagiranye na we kuwa kane mu gitondo ko amazi yamenetse “ntibivuze ko hari ikintu kirimo gukorwa ubu.”
Yagize ati: “Ubwo ni bwo butumwa bw’ingenzi — ko tuzi ko ari bwo kandi ko dutegereje amakuru arambuye.”
Ariko, ku bantu bo muri ako gace “iki ni cyo gihe cyo gutangira kwitegura ingaruka zishobora guterwa n’imyuzure,” nk’uko itangazo ryashyizwe ahagaragara na NWS Juneau ribivuga.
Ku wa kane mu gitondo, urwego rw'amazi y'uruzi rwa Mendenhall rwari metero 1.43, ugereranije na metero 1.50 mu ntangiriro z'umwaka ushize. Ariko Park yavuze ko ikintu cy'ingenzi mu bukana bw'umwuzure uwo ari wo wose muri uyu mwaka kizaba ari uburyo amazi asohoka vuba mu kibaya iyo urugomero rw'urubura rwangiritse.
Yagize ati: “Niba ufite akantu gato k’amazi ntabwo ari ikibazo mu by’ukuri. Ariko shyira amazi yose ako kanya uzagira ibibazo bikomeye.”
Ishuri Rikuru ry’Ubushakashatsi ku Majyambere rya Amerika ryashyize ibikoresho bishya byo kugenzura ku kiraro cy’uruzi rwa Mendenhall kiri ku muhanda wa Back Loop mu gitondo cyo kuwa Kane kugira ngo bifashe kuyobora imyiteguro yo gusezerera amazi mu gihe cyo kurekura ikibaya cy’amazi cyitwa Suicide Basin. Umwaka ushize ubwo amazi yarekurwaga ku ya 5 Kanama, USGS yishingikirizaga gusa ku gipimo cyayo cy’amazi cyo ku kiyaga cya Mendenhall.
Randy Host, umuhanga mu by’amazi muri USGS, yavuze ko iki gipimo cy’umuvuduko kizatuma habaho igenzura ryinshi ry’amazi y’umugezi anyura mu ruzi.
Yagize ati: “Izakora ku rubyiniro, icyo twita uburebure bwa gage, nk'uburebure bw'uruzi. Hanyuma izakora no ku muvuduko w'ubuso. Izapima umuvuduko w'amazi ku buso.”
Igice kinini cy'uruzi rwa Mendenhall ubu cyuzuyemo amabuye yo kurinda inyubako nyuma y'uko umwuzure w'umwaka ushize wangije cyane inkombe z'uruzi. Umwuzure wasenye igice cyangwa burundu amazu atatu ndetse n'andi mazu arenga mirongo itatu yangiritse mu buryo butandukanye.
Amanda Hatch, ufite inzu yuzuye santimetero 2.8 z'amazi mu gice cy'amazi umwaka ushize, yavuze ko ivugurura rikomeye ryo gukomeza kurinda inzu y'umuryango we ryarangiye.
Yagize ati: “Ntabwo duhangayikishijwe cyane kuko twazamuye inzu metero enye. Ariko dufite imodoka ikoresha amashanyarazi, bityo niyuzura tuzayimurira mu muhanda tuyijyana kwa mugenzi wacu. Ariko twiteguye.”
Hatch yavuze ko ahantu ho gukurura inzu hongewemo imbaraga kugira ngo habeho kuyuzura. Yavuze ko ubwishingizi butari bwishyuye ibyangiritse umwaka ushize, ariko ubufasha mu by’ibiza n’inkunga byasabwe binyuze mu Ishyirahamwe ry’Abacuruzi Bato byafashije mu gusana no kuvugurura inzu.
Uretse ibyo, Hatch yavuze ko nta kindi cyo gukora uretse gukurikirana ibiri kuba.
“Ntabwo hagaragara uko bizagenda, sibyo?” “Bishobora kuba byinshi. Bishobora kuba bike. Bishobora kuba buhoro. Tugomba gutegereza gusa kugira ngo tubone. Nishimiye ko urutonde rwacu rwarangiye bityo ntitugomba kubihangayikishwa cyane.”
Marty McKeown, ufite inzu yangiritse cyane bigatuma isigarana umwobo munsi y'icyumba cyo kubamo, yavuze ko aracyakora imirimo yo gusana inzu ndetse n'urubaraza rwayogojwe - kandi usibye inguzanyo ya SBA ntabwo yabonye ubufasha yari yizeye buturutse ku mujyi cyangwa izindi nzego za leta. Yavuze ko afite "impungenge nyinshi" ku bijyanye n'uko ibintu bimeze ubu, ariko nta bwoba afite mu gihe akurikirana uko ikibaya gihagaze.
Yagize ati: “Tuzareba uruzi kandi dufate ingamba nibiba ngombwa. Sinzatangira kwimuka mu nzu yanjye. Tuzagira igihe nihagira ikiba.”
Imvura nshya yaguye muri Nyakanga yashyizwe ahagaragara muri Juneau mu kwezi gushize, aho raporo y'ibanze yagaragaje santimetero 12.21 z'imvura ku kibuga cy'indege mpuzamahanga cya Juneau ugereranije n'iyaguye mbere ya santimetero 10.4 mu 2015. Habayeho imvura ingana mu minsi yose y'ukwezi uretse ibiri, harimo na santimetero 0.77 zapimwe kuwa gatatu.
Iteganyagihe rizaba mu ntangiriro z'icyumweru gitaha risaba ko ikirere kizaba gikeye kandi ikirere kibe kirekire kugeza mu myaka ya za 70.
Robert Barr, umuyobozi wungirije w’umujyi w’Umujyi n’Akarere ka Juneau, yavuze ko imvura nyinshi igwa muri Juneau iteye impungenge kuko iyo uruzi ruri hejuru, nta mwanya uhagije wo kurekura amazi yo kuzuza uruzi. Yavuze ko CBJ yakira raporo z’uko ibintu bimeze buri munsi zituruka muri NWSJ.
Yagize ati: “Baduha igitekerezo cyabo cyiza ku bijyanye n’uko jökulhlaup yaba imeze ku nzego zitandukanye zo gusohora iyo iba isohotse mu gihe cyo gutanga iyo raporo. Rero buri gicamunsi turabyumva. Kandi muri make icyo bitubwira ni uko jökulhlaup iramutse isohotse ubu, iri hagati ya 20% na 60% by’umubare wose wa Suicide Basin, dore uko jökulhlaup yaba imeze. Iyo isohoka iri hagati ya 100% by’umubare wa Suicide Basin - umwaka ushize yasohotse iri hagati ya 96% - dore uko jökulhlaup yaba imeze. Kandi ubu iyo isohotse iri hagati ya 100% byaba bibi kurusha umwaka ushize.”
Barr yavuze ko ikibaya kidakunze kurekura 100%. Umwaka ushize ni wo wari ingano nini kurusha izindi ikibaya cyarekuye icyarimwe. Ariko nta buryo bwo kumenya uko amazi azarekura vuba.
Kanda kuri iyi link iri hepfo kugira ngo umenye byinshi
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Igihe cyo kohereza: Ukwakira-08-2024