Video: Cov dej khov dej txias npaum li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
50 degrees Fahrenheit
Tom qab ntawd, cov dej khov nab kuab txias npaum li cas?
Cov dej khov nws tus kheej yog ze rau xoom, yog li nws yog qhov txias dua thaum koj muaj dej khov nyob ib ncig ntawm koj. Cov dej khov nws tus kheej yog nyob ib ncig ntawm 300-600 meters saum hiav txwv. Qhov no txhais tau hais tias huab cua kub yuav nyob nruab nrab ntawm 2-5 degrees qis dua ntawm hiav txwv theem.
Ib yam li ntawd, nws puas muaj kev nyab xeeb rau haus dej los ntawm lub qhov dej khov? Yog li cov kab hauv qab no tsuas yog vim a dej qhov twg los yav tas los khov tsis tau txhais hais tias nws yog inherently nyab xeeb haus . Qhov tseeb, Loso tau pom cov daus thiab dej khov muaj peev xwm khaws cov quav quav thiab quav kab mob "tsis tas li," uas txhais tau hais tias koj yuav tsum xav txog qhov pov thawj ntawm koj cov yaj. dej ua tib zoo.
Yog li ntawd, dej Glacier yog ib txwm txias?
Dej khov dej khov heev txias . Cov no dej khov hu ua "temperate" dej khov . Glaciologists xa mus rau a dej khov raws li ib " txias " dej khov yog hais tias nws yog ntau tshaj li ob peb degrees hauv qab lub freezing kub nyob rau hauv feem ntau ntawm nws thickness.
Vim li cas dej glacier xiav?
Ib daim loj compressed ice, los yog a dej khov , zoo li tshwm xiav . Es, dej ice yog xiav rau tib yam vim li cas cov kua ntau ntau dej yog xiav : Nws yog ib qho tshwm sim ntawm qhov overtone ntawm oxygen-hydrogen (O-H) daim ntawv cog lus stretch hauv dej , uas absorbs lub teeb ntawm qhov kawg liab ntawm qhov pom spectrum.
Pom zoo:
Dab tsi yog qhov sib xyaw ntawm cov dej khov thiab cov ntsev ntau hu ua?
Teb: Qhov sib tov no hu ua anti freezing agent. Feem ntau cov lus ntsev yog cov tshuaj sodium chloride
Cov dej khov tuab npaum li cas thaum lub caij ntuj sov kawg?
12,000 feet
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Vim li cas cov dej khov ntab saum dej?
Raws li nws txias ntxiv thiab khov rau hauv dej khov, nws ua tau tsawg dua. Cov dej khov ntab vim tias nws muaj li 9% tsawg dua li cov dej ua kua. Hauv lwm lo lus, dej khov siv li 9% ntau qhov chaw tshaj li dej, yog li ib liter dej khov hnyav dua li dej. Cov dej hnyav dua hloov cov dej khov sib zog, yog li cov dej khov ntws mus rau saum
Ntau npaum li cas ntawm cov pej xeem hauv ntiaj teb nyob ntawm cov kab ke roob rau tag nrho lossis qee qhov ntawm lawv cov dej?
Roob yog lub ntiaj teb "dej yees," muab 60-80% ntawm tag nrho cov dej tshiab rau peb ntiaj chaw. Tsawg kawg ib nrab ntawm lub ntiaj teb cov pej xeem nyob ntawm roob ecosystem kev pabcuam kom muaj sia nyob - tsis yog dej xwb, tab sis kuj muaj zaub mov thiab lub zog huv