altnews.org By
A new study utilizing satellite observations determined that Antarctic-wide ice shelves gained 661 Gt of mass from 2009 to 2019.
An approach relying on assumptions of an unrealistic “steady state” or fixed calving flux (instead of real-world time-variable observations) estimates a net Antarctic ice shelf loss of -20,028 Gt over this same 11-year period – a more than 30-fold distortion of observed ice loss. [emphasis, links added]
New research (Andreasen et al., 2023) uses observational evidence from MODIS to assess net ice losses and gains for 34 ice shelves across Antarctica from 2009-2019.
These observed data show the mass gains from East Antarctica and the Ross and Ronne-Filchner ice shelves were larger on net than the mass losses in West Antarctica and the Peninsula.
Consequently, Antarctica as a whole has been gaining mass since 2009…
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