The forecast thus is given at the start of the melt season and provides an assessment of the amount of glacier runoff that will be generated. (nichols.edu)
Eventually the resulting decline in glacier extent reduces the area available for melting causing a decrease in glacier runoff. (nichols.edu)
The initial response is an increase in glacier melt rate enhancing glacier runoff, while the glacier extent is still substantial in comparison to previous size. (nichols.edu)