Melting and Heat Exchange at the Bottom of a Snow Cover

Content Provider	Scilit
Author	Kojima, Kenji Motoyama, Hideaki
Copyright Year	1985
Description	The melting rate of the bottom of a snow cover during the winter and its variation with time were studied in relation to heat exchange at the ground-snow interface. Continuous observations were made of bottom-melt, using a lysimeter, during the past four winters beginning December 1980, at our test field in Moshiri, Hokkaido, which is known for severe coldness and deep snow. During the four months in this area the amount of bottom-melt ranged from 45 - 70 mm in total and from 0.4 - 0.6 mm per day on average. In winters with much snow the daily amount of bottom-melt decreased gradually from a maximum of about 1.5 $mm.d^{-1}$ in early December, reached its minimum of 0.2 - 0.3 mm $d^{-1}$ day in February, and then increased again. In a winter with a smaller amount of snow it varied greatly with time during the early period of the winter and became zero temporarily. Such variations of the melting rate could be explained by conductive heat fluxes observed in the ground and snow. The daily average of the former was about 5 $W.m^{-2}$ at a depth of 0.1 m in early December and decreased to about 2.5 $W.m^{-2}$ in early April.
Related Links	https://www.cambridge.org/core/services/aop-cambridge-core/content/view/7C982321C616BAA9B2FE316D176B68FC/S0260305500010612a.pdf/div-class-title-melting-and-heat-exchange-at-the-bottom-of-a-snow-cover-div.pdf
Ending Page	277
Page Count	2
Starting Page	276
ISSN	02603055
e-ISSN	17275644
DOI	10.1017/S0260305500010612
Journal	Annals of Glaciology
Volume Number	6
Language	English
Publisher	Cambridge University Press (CUP)
Publisher Date	1985-01-01
Access Restriction	Open
Subject Keyword	Annals of Glaciology Atmospheric Sciences
Content Type	Text
Resource Type	Article
Subject	Earth-Surface Processes