The effects of snowfall on a snow-ice-thickness distribution

被引：4

作者：

Schramm, JL ^{[1
]}

Holland, MM ^{[1
]}

Curry, JA ^{[1
]}

机构：

[1] Univ Colorado, Dept Aerosp Engn, Boulder, CO 80309 USA

来源：

ANNALS OF GLACIOLOGY, VOL 25, 1997: PAPERS FROM THE INTERNATIONAL SYMPOSIUM ON REPRESENTATION OF THE CRYOSPHERE IN CLIMATE AND HYDROLOGICAL MODELS HELD AT VICTORIA, BRITISH COLUMBIA, CANADA, 12-15 AUGUST 1996 | 1997年 / 25卷

关键词：

D O I：

10.3189/S0260305500014178

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Snow falling uniformly on a distribution of ice thicknesses results in a distribution of snow-cover thicknesses. These snow depths depend on the amount of snow fall, the time of year at which it falls, and the thickness of the underlying ice. The effect of snowfall on snow-ice-thickness distribution is examined using a single-column ice-ocean model. The time at which snow begins to accumulate, and melt ponds and leads freeze, affects the surface albedo. The rate of snowfall affects ice-growth rates and, as a result, the ice-thickness distribution. During the period of rapid ice growth between the autumn freeze and mid-winter, snow falling on newly formed ice is rapidly depleted due to sublimation. Snow falling on thicker ice remains throughout the winter to create a source of meltwater for ponds and runoff into the ocean.

引用

页码：287 / 291

页数：3