The mass balance, or annual ice—accumulation rate, of an ice sheet is the net resultant of a number of physical processes (snowfall, freezing of water, evaporation, etc.), and the contribution of a particular process may vary considerably from place to place. Nevertheless, to study the basic response of continental ice sheets to changes in environmental conditions, it is sufficient to express the mass balance in terms of height with respect to the snow line. At the snow line the mass balance is zero by definition. For schematic calculations it is sufficiently accurate to set the mass balance M linearly proportional to z — hs, where z is elevation (above sea level) and hs is the height of the snow line.
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- Basic Response of Ice Sheets to Environmental Conditions
C. J. van der Veen
- Springer Netherlands
Systemische Notwendigkeit zur Weiterentwicklung von Hybridnetzen