A brand new research using satellite tv for pc observations decided that Antarctic-wide ice cabinets gained 661 Gt of mass from 2009 to 2019.
An method counting on assumptions of an unrealistic “regular state” or fastened calving flux (as a substitute of real-world time-variable observations) estimates a internet Antarctic ice shelf lack of -20,028 Gt over this identical 11-year interval – a greater than 30-fold distortion of noticed ice loss. [emphasis, links added]
New analysis (Andreasen et al., 2023) makes use of observational proof from MODIS to evaluate internet ice losses and beneficial properties for 34 ice cabinets throughout Antarctica from 2009-2019.
These noticed knowledge present the mass beneficial properties from East Antarctica and the Ross and Ronne-Filchner ice cabinets have been bigger on internet than the mass losses in West Antarctica and the Peninsula.
Consequently, Antarctica as a complete has been gaining mass since 2009.
“General, the Antarctic ice shelf space has grown by 5,305 km² since 2009, with 18 ice cabinets retreating and 16 bigger cabinets rising in space.”
Most research make the most of an alarmism-friendly “steady-state assumption” method to estimate ice losses “within the absence of observations.”
This enables the agenda-driven facilitators of ice-loss estimates to “overestimate ice loss on ice cabinets which are advancing.”
For instance, utilizing the “steady-state assumption” technique, a internet lack of -20,028 Gt might be alleged for Antarctic ice cabinets from 2009-2019.
Satellite tv for pc observations, in distinction, assess a +661 Gt mass acquire throughout this identical interval.
Thus, assumption-based ice losses are artificially inflated over 3,000% greater than observations, flagrantly misrepresenting ice shelf habits throughout Antarctica.
The apply of distorting the numbers to drive a story has infiltrated one other side of local weather science.
Picture Supply: Andreasen et al., 2023
High photograph of Ross Sea, Antarctica, by Una Miller on Unsplash.
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