«New satellite method enables undersea estimates from space: Statistical advance quantifies important ocean parameters in the illuminated ocean.» (sciencedaily.com)
It uses algorithms to detect changes to the forest in areas as small as 10 square meters, about 100 square feet, allowing scientists to find small - scale disturbances that can not be detected by traditional satellite methods. (carnegiescience.edu)
The study found reasonable agreement between the different satellite methods, and arrived at the following best estimates of mass balance changes per year for 1992 through 2011: Greenland: lost 142 ± 49 gigatons; East Antarctica: gained 14 ± 43 gigatons; West Antarctica: lost 65 ± 26 gigatons; Antarctic Peninsula: lost 20 ± 14 gigatons. (nsidc.org)