Sawir - NASA
Sidii aan faallo uga bixin jirnay dhowaan blog, dhalaalku wuxuu ka tegayaa qaaradda Antartik baraf la'aan. Labadii maalmood ee la soo dhaafay, waxa horey loogu magacaabay barafka ugu weyn adduunka: Larsen C.
Isaga oo miisaankiisu yahay tiriliyan tan, indhaha oo dhami isagay saarnaayeen muddo dheer. Taasina waa taas, maxaa hadda dhici doona? Waqtigaan la joogo, Antarctica mar dambe isku mid uma eka doonto; aan micne lahayn lumisay in kabadan 12% aaggeedii barafka.
Baraf-weynaha weyn, in kasta oo uu muddo sabaynayay, saamayn toos ah kuma yeelan doono heerka badda; Hadda saynisyahannadu way ka welwelsan yihiin sida ay u ogaadeen in daboolka barafka Antarctica uu aad uga deggan yahay sidii ka horreeyay dildilaaca asal ahaan, taasoo macnaheedu yahay baraf cusub ayaa samaysan kara muddada gaaban ama muddada dhexe.
Jebinta Larsen C muddo dheer baa la soo baranayey, tan iyo markii dhismihii Larsen A uu burburay 1995, iyo 2002 Larsen B. Sannadkan dhexdiisa, 2017, laga bilaabo Jannaayo illaa Juun dhererka dildilaaca Larsen C wuxuu ku kordhay in ka badan 200km. Waxaa ku soo biirtay qaaradda iyada oo layn ballaadhan oo ballac ah oo dhan 4,5 km, illaa ugu dambayntii, intii u dhaxeysay 10-kii ilaa 12-kii Luulyo, gabi ahaanba way dillaacday.
Sawir - Businessinsider.com
Lama oga waxa dhici doona hadda kadib; Waxay u badan tahay, barafku wuxuu u kala jabi doonaa jajabyo kala duwan oo ugu dambeyn saameyn ku yeelan kara heerka badda. Weli, waxa ugu welwelka badan ayaa ah in haddii celceliska heerkulka adduunka uu sii kordho, Antarctica waxaa laga yaabaa in barafku ka dhammaado.
Waxaan ku helnay daahfurkaan naxdinta leh Sentinel-1 dayax gacmeedka Wakaaladda Hawada Yurub, oo loo adeegsaday in lagula socdo horumarka Lissen C fissure sanadkii la soo dhaafay, iyo dayax gacmeedka Aqua MODIS iyo aaladda Suomi VIRS, labadaba ka socda NASA.
Wixii macluumaad dheeraad ah, riix halkan.