2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Glaciers hauv Garhwal Himalaya hauv Is Nrias teb tau thim rov qab sai heev uas cov kws tshawb fawb ntseeg tias feem ntau ntawm nruab nrab thiab sab hnub tuaj Himalayan glaciers tuaj yeem ploj mus los ntawm 2035. Arctic hiav txwv dej khov tau thinned ntau dhau ntawm Ib nrab xyoo dhau los, thiab nws qhov twg tau poob li ntawm 10 feem pua hauv 30 xyoo dhau los.
Yuav muaj pes tsawg lub glaciers rov qab?
Nyob rau hauv ib daim ntawv luam tawm xyoo 2009 los ntawm University of Zurich, Swiss glacier daim ntawv ntsuam xyuas ntawm 89 glaciers pom 76 thim rov qab, 5 nyob ruaj ruaj thiab 8 nce los ntawm qhov chaw uas lawv tau nyob hauv 1973.
Cov dej khov twg rov qab sai tshaj?
Ntawm cov glaciers ceev tshaj plaws yog cov hauv Alaska, Iceland thiab Alps. Qhov xwm txheej no tseem muaj kev cuam tshuam loj heev rau lub roob glaciers hauv Pamir roob, Hindu Kush thiab Himalayas.
Thaum twg cov glaciers pib thim rov qab?
Qee cov kws tshawb fawb ntaus nqi qhov kev tawm tsam loj heev rau Kev Hloov Kho Kev Lag Luam, uas tau pib ncig 1760. Qhov tseeb, ntau lub kaus mom dej khov, cov dej khov thiab cov txee dej khov tau ploj mus tag nrho hauv lub xyoo pua no. Ntau ntau tau thim rov qab sai heev uas lawv yuav ploj mus nyob rau hauv ntau xyoo lawm.
Puas yog McCarty glacier thim rov qab lossis nce mus?
McCarty glacier thim rov qab ~ 20 km ntawm lub sijhawm ob daim duab no tau raug coj los thiab tsis pom hauv daim duab xyoo 2004. Ua ntej no, McCarty tau ua tiav nws qhov kev paub ntau tshaj plaws nyob ib puag ncig1850 kwv yees li 0.5 km ntawm nws txoj haujlwm hauv xyoo 1909 thiab tau ruaj khov thaum lub sijhawm ntawd 1.
Pom zoo:
Puas yog cov dej khov ntev ntev dua li cov dej khov nab kuab?
Lwm qhov sib txawv loj ntawm glacials thiab interglacials yog cov kev hloov hauv dej hiav txwv. Thaum lub sij hawm glacial, cov dej hiav txwv poob qhov nruab nrab ntawm 100m raws li cov dej evaporated thiab khaws cia rau hauv cov glaciers loj hlob thiab cov ntawv dej khov.
Lub kaus mom dej khov puas rov khov?
Tom qab lub caij nplooj ntoos hlav thiab lub caij ntuj sov lub caij ntuj sov, lub hau ntawm cov dej khov nab kuab ntab saum toj ntawm hiav txwv Arctic pib rov khov. Xyoo 2020, txawm li cas los xij, txhua xyoo khov tau qeeb qeeb. … Tab sis tsis zoo li xyoo 2012, dej hiav txwv tsis pom nws tus nqi qis dua rau xyoo 2020.
Puas rov tuav pov hwm rov qab xav tau cov neeg tuav pov hwm rov qab?
Cov tuam txhab tuav pov hwm rov qab feem ntau yuav rov ua pov hwm lawv tus kheej, lub sij hawm hu ua retrocession. Ntau txoj cai tau nthuav tawm ntawm ntau tus neeg tuav pov hwm rov qab. Nyob rau hauv rooj plaub no, qhov kev sib pauv yuav koom nrog tus thawj coj rov tuav pov hwm uas yuav sib tham txog cov ntsiab lus ntawm txoj cai uas lwm tus neeg tuav pov hwm rov qab yuav koom nrog.
Puas khov tsis muaj dej khov khov?
Lub kaw-off valve ua haujlwm hauv qab kab te. Dej tsis tuaj yeem khov vim thaum nws kaw, tag nrho cov dej hauv cov kav dej tso tawm ib lub qhov hauv lub valve uas tau teem rau hauv av hauv qab kab te. Can Frost-free faucets freeze? Ib lub faucet tsis muaj dej khov yog tsim lostiv thaiv dej los ntawm khov hauv cov yeeb nkab lossis lub valve thiab ua rau nws puas.
Qhov twg yog dej khov lossis dej khov?
Dej khov tsawg dua dej Qhov no yog vim dej khov qhov ntom ntom tsawg dua li cov dej ntom ntom. Thaum khov, qhov ntom ntawm cov dej khov txo qis li ntawm 9 feem pua. Vim li cas dej thiaj ntom dua dej khov? "cov khoom" (molecules) hauv dej yog ntim nruj dua li hauv dej khov, yog li dej muaj qhov ntom ntom dua li dej khov.
