In order to be called an iceberg, the ice mass must rise more than 16 feet (4.9 m) above sea level, be between 98 feet and 164 feet (30 to 50 m) thick and cover an area of at least 5,382 square ...

The result was made possible by a new comparison of three different types of satellite observations: measurements of the change in gravity by changes in ice mass with the satellite pair GRACE ...

Unravelling the confusion depends on appreciating the difference between the two different types of ice, which we can broadly term “land ice” and “sea ice” – although as we shall see ...

Microwave radiometers on satellites pick up these differences in emissivity, which are observed as variations in brightness temperature for the different types of ice. The 'brightness' data are ...