Record Decline Of Ice Sheets, Except East Antarctica

For the first time, scientists have mapped elevation changes of Greenlandic and Antarctic glaciers. For the new digital maps, the researchers evaluated all data by the CryoSat-2 altimeter SIRAL. Satellite altimeter measure the height of an ice sheet by sending radar or laser pulses in the direction of the earth. These signals are then reflected by the surface of the glaciers or the surrounding waters and are subsequently retrieved by the satellite. This way the scientists were able to precisely determine the elevation of single glaciers and to develop detailed maps.  read more

Read the whole article on

More from