Since 2002, satellites of GRACE (Gravity Recovery and Climate Experiment, Experiment Gravity Recovery and Climate, is a joint space mission between NASA and the German Space Agency) have been able to fully measure all the ice. Satellites measure changes in gravity table to determine variations across the Antarctic ice sheet. Initial observations show that most of the mass loss comes from the western Antarctic.
To get more information Grace, it is better understood change is the ice sheets of Antarctica. The figure below shows the changes of ice mass during periods of April 2002 to February 2009. The blue lines show values unfiltered, monthly. They have removed red seasonal variabilities.

I satellites measure that Antarctica is losing land ice at an accelerated pace.
Since 2002, satellites of GRACE (Gravity Recovery and Climate Experiment, Experiment Gravity Recovery and Climate, is a joint space mission between NASA and the German Space Agency) have been able to fully measure all the ice. Satellites measure changes in gravity table to determine variations across the Antarctic ice sheet. Initial observations show that most of the mass loss comes from the western Antarctic.
To get more information Grace, it is better understood change is the ice sheets of Antarctica. The figure below shows the changes of ice mass during periods of April 2002 to February 2009. The blue lines show values unfiltered, monthly. They have removed red seasonal variabilities.

