Proposed definitions for glacier mass budget terms

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Authors:Meier, M. F.
Volume Title:Journal of glaciology
Source:Journal of glaciology; Symposium on Problems of Mass Balance Studies, Cambridge, Eng., Jan. 5-7, 1962. 4(33). United States. P.252-263. ISSN: 0022-1430
Publication Date:1962
Note:14 refs. Ant. Acc. No: 74
Abstract:A set of internally consistent mass budget terms is proposed for consideration. Vertically measured, water-equivalent components of accumulation, ablation, and net budget are defined for points on a glacier (specific quantities) or as area-integrated totals for the whole glacier (total quantities). The budget year is defined as the time between two minima of net budget. Additional terms involving specific and total rates of accumulation, ablation, net budget, and various subdivisions of the glacier area are developed. Mass budget quantities can be separated into steady-state and budget imbalance terms. Net budgets can be calculated by simplified means when the variation of budget with altitude is known. It is suggested that the term "firn" be applied to layers which have survived one summer's ablation season. (Auth.)
Index Terms:Glacier ice--Mass balance; Glacier ice--Terminology
Publication Type:journal article
Record ID:135730
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040 |a ViAlAGI  |c ViAlAGI 
100 1 |a Meier, M. F. 
245 1 0 |a Proposed definitions for glacier mass budget terms 
300 |a p. 252-263 
500 |a 14 refs. Ant. Acc. No: 74 
500 |a Key title: Journal of Glaciology 
500 |a Source note: Journal of glaciology; Symposium on Problems of Mass Balance Studies, Cambridge, Eng., Jan. 5-7, 1962. 4(33). United States. P.252-263. ISSN: 0022-1430 
500 |a Publication type: journal article 
520 |a A set of internally consistent mass budget terms is proposed for consideration. Vertically measured, water-equivalent components of accumulation, ablation, and net budget are defined for points on a glacier (specific quantities) or as area-integrated totals for the whole glacier (total quantities). The budget year is defined as the time between two minima of net budget. Additional terms involving specific and total rates of accumulation, ablation, net budget, and various subdivisions of the glacier area are developed. Mass budget quantities can be separated into steady-state and budget imbalance terms. Net budgets can be calculated by simplified means when the variation of budget with altitude is known. It is suggested that the term "firn" be applied to layers which have survived one summer's ablation season. (Auth.) 
653 |a Glacier ice--Mass balance 
653 |a Glacier ice--Terminology 
773 0 |t Journal of glaciology  |d Oct. 1962  |x 0022-1430  |n Journal of glaciology; Symposium on Problems of Mass Balance Studies, Cambridge, Eng., Jan. 5-7, 1962. 4(33). United States. P.252-263. ISSN: 0022-1430 Publication type: journal article  |g Vol. 4, no. 33 (Oct. 1962),