ACCUMULATION PATTERNS ON THE GREENLAND ICE SHEET.
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Pagination or Media Count:
All available mean annual accumulation data on the Greenland ice sheet excluding the Thule Peninsula have been collected and analyzed using multiple regression techniques to develop equations capable of predicting mean annual accumulation. The analysis was carried out for north Greenland, south Greenland, and for the transition zone between the two major regions. The resulting equations show that mean annual accumulation can be predicted from the independent parameters, latitude, longitude, and elevation. The patterns of accumulation are shown in a series of isohyetal maps contours of accumulation in terms of water. The major feature shown is a well defined asymmetry in accumulation a pronounced east slope maximum in south Greenland and an equally pronounced west slope maximum in north Greenland. Poleward of 69N, isohyets decrease in elevation to the north. Mean annual accumulation ranges from greater than 90 gsq cm in southeast Greenland to less than 15 gsq cm in northeast Greenland. A brief discussion of mass balance estimates of the Greenland ice sheet and of the relevance of this study to them is included. Author
- Snow, Ice and Permafrost