Ice - sheet volume is controlled by the balance between mass input and mass loss; mass input is almost entirely due to snowfall, and mass loss is from iceberg calving supplied by flow of the ice sheet, or runoff of melt wat
Ice -
sheet volume is
controlled by the
balance between
mass input and
mass loss;
mass input is almost entirely due to snowfall, and
mass loss is from iceberg calving supplied by flow of the
ice sheet, or runoff of melt wat
ice sheet, or runoff of melt water.