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Combined
ice and water balances of Maclure Glacier, California, South Cascade
Glacier, Washington, and Wolverine and Gulkana Glaciers, Alaska, 1967
hydrologic year
By Tangborn, W.V., Mayo, L.R., Scully, D.R., and Krimmel, R.M.
U.S. Geological Survey Professional Paper 715-B, 20 p.
ABSTRACT
Combined ice and water balances were measured in the 1967 hydrologic year
(October I-September 30) on four glaciers in western North America ranging
in latitude from 37° to 63° N. This hydrologic year was characterized by
heavier than normal winter precipitation in California and Washington and
abnormally dry winter conditions in coastal Alaska. In summer the western
conterminous states were abnormally dry and central and southern Alaska
experienced very wet conditions.
Maclure Glacier (lat 37°45' N., 3,650-m (meters) mean equilibrium line
altitude) had an above normal winter balance of 3.46 m and a positive annual
balance of 1.05 m (meters of water equivalent).
South Cascade Glacier (lat 48°22' N., 1,900-m mean equilibrium line
altitude) had a winter balance of 3.28 m, slightly above average. Above
normal summer ablation resulted in a final annual balance of -0.58 m,
slightly more negative than has been the case for the past decade.
Wolverine Glacier's (lat 60°24' N., 1,200-m mean equilibrium line
altitude) winter balance was 1.17 m, considerably below normal; the annual
balance was -2.04 m.
Gulkana Glacier (lat 63°15' N., 1,700-m mean equilibrium line altitude)
had a winter balance of 1.05 m, approximately normal for this glacier; the
final annual balance was -0.30 m.
Contents
Abstract
Introduction
Weather during the 1967 hydrologic year
Measurement system
Maclure Glacier
Description
Field program
Weather
Glaciologic balances
Hydrologic balance
South Cascade Glacier
Description
Field program
Weather
Glaciologic balances
Hydrologic balance
Wolverine Glacier
Description
Field program
Weather
Glaciologic balances
Hydrologic balance
Gulkana Glacier
Description
Field program
Weather
Glaciologic balances
Hydrologic balance
Relationships between hydrology of these glaciers
References cited
Tangborn, W.V., Mayo, L.R., Scully, D.R., and Krimmel, R.M., 1977, Combined ice and
water balances of Maclure Glacier, California, South Cascade Glacier, Washington, and
Wolverine and Gulkana Glaciers, Alaska, 1967 hydrologic year: U.S. Geological Survey
Professional Paper 715-B, 20 p.
[Full report body, Acrobat PDF (10
MB)] [6 Plates, Acrobat PDF (40
MB)]
Report from USGS
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Maintainer: Rod March
Last update:
Tuesday, June 05, 2007 04:04 PM
URL: http://ak.water.usgs.gov/glaciology/reports/1977_pp715B/index.htm
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