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A trouble new video point 13 age of melt at the Greenland Ice Sheet . The picture was stitched together based onNASAandEuropean Space Agency(ESA ) satellite data point .
The video discover how the edges of the ice sheet are melting more speedily than the center , particularly at spots where glacier flow into the sea . The fresh enquiry find that between 2010 and 2023 , Greenland lost 563 cubic miles ( 2,347 cubic klick ) of glass , which is enough to fill Lake Victoria , Africa ’s largest lake . The Greenland Ice Sheet has been losing mass since 1998 , allot to theNational Oceanic and Atmospheric Administration , and it ’s presently the second - biggest contributor to sea level rise after the elaboration of water that occurs due to warm temperatures .
The enquiry , published Dec. 20 in the journalGeophysical Research Letters , was n’t just about quantifying ice loss , though . Both NASA and ESA have orbiter keeping a close centre on the realm . ESA ’s CryoSat-2 uses radar to measure the elevation of Earth ’s open , while NASA ’s ICESat-2 apply laser measurements . Both methods have pros and confidence trick , and researcher wanted to be sure the two measurements returned standardized results and could be combined for greater truth .
The solvent showed that they can : CryoSat-2 and ICESat-2 differed by no more than 3 % in their estimates of the tiptop change on the Greenland Ice Sheet . Their joint results disclose that the ice sheet thin by an norm of 3.9 ft ( 1.2 metre ) over 13 long time .
But that average number obscures major departure across the tack . The ice tabloid ’s edges lose 21 foundation ( 6.4 m ) , on modal . Outlet glacier take care the worst passing , with a uttermost of 246 substructure ( 75 K ) at the Zachariae Isstrøm glacier . The worst losses appear in the darkest bolshy in the new video made from the data .
— NASA aircraft uncovers internet site of hush-hush Cold War nuclear projectile tunnel under Greenland internal-combustion engine sheet
— Fossils from Greenland ’s frozen heart reveal it was a unripened tundra report in prime less than 1 million years ago
— Giant virus happen upon living in Greenland ’s glowering ice and red snow
Since 2020 , CryoSat-2 and ICESat-2 have been orb along the same track — a joint effort between ESA and NASA to ensure the data collected by both artificial satellite can be coincidental and synchronized .
" It is swell to see that the data from ' sister missions ' are providing a consistent impression of the changes going on in Greenland,“Thorsten Markus , project scientist for the ICESat-2 delegation at NASA , said in astatement . " Understanding the similarities and differences between radar and lidar methamphetamine hydrochloride plane elevation measuring allows us to amply exploit the complementary nature of those artificial satellite missions . "
