Cov kws tshawb fawb nyob sab Europe ntawm 14th tso dej khov nab kuab cov qauv sau los ntawm Alps mus rau hauv lub qhov tsua dej khov tshwj xeeb hauv Antarctica, kos npe rau kev qhib lub ntiaj teb thawj qhov chaw txias txias rau khaws cia siab - qhov siab ntawm cov dej khov nab kuab.
Raws li Associated Press, qhov chaw ntim dej khov no yog nyob hauv qab 5-meter- siab snowdrift ze ntawm Concordia Chaw nres tsheb, ib qho kev sib koom ua ke ntawm Fabkis-Italian Antarctic chaw tshawb fawb. Qhov kub nyob ntawd nyob ib ncig ntawm -52 degrees Celsius nyob ib ncig ntawm lub xyoo, zoo tagnrho rau khaws cia cov ice cores.
Thawj pawg ntawm cov dej khov nab kuab tso rau ntawm 14th tau coj los ntawm cov dej khov nyob rau ntawm Mont Blanc hauv Fabkis thiab Grande Compaq hauv Switzerland. Cov dej khov nab kuab no tau tawm ntawm qhov chaw nres nkoj Italian ntawm Trieste, taug kev rau 50 hnub ntawm lub tub yees txias thiab caij dav hlau mus txog Antarctica.
Ice cores yog cylindrical ice masses tho los ntawm glaciers thiab yog cov ntaub ntawv tshawb fawb tseem ceeb hauv kev lag luam glaciology. Lawv tsis tsuas yog khaws cov ntaub ntawv hais txog keeb kwm ntawm huab cua huab cua thiab ib puag ncig kev hloov pauv, tab sis kuj tseem sau txog kev cuam tshuam ntawm tib neeg kev ua ub no ntawm huab cua thiab ib puag ncig, ua lub luag haujlwm tseem ceeb hauv kev tshawb fawb txog kev hloov pauv huab cua thoob ntiaj teb.
Qhov dej khov nab kuab no, lub npe hu ua "Ice Memory," yog ua los ntawm lub hauv paus ntawm tib lub npe suav nrog cov chaw tshawb fawb los ntawm Fabkis, Ltalis, Switzerland, thiab lwm lub tebchaws. Lub hauv paus yog mob siab rau drilling thiab khaws cia cov dej khov nab kuab los ntawm cov dej khov los yog ploj mus rau kev tshawb fawb yav tom ntej.
