𝔖 Bobbio Scriptorium
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Amount of soil ice predicted from weather observations

✍ Scribed by J.W. Cary

Publisher
Elsevier Science
Year
1982
Weight
402 KB
Volume
27
Category
Article
ISSN
0002-1571

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✦ Synopsis

An equation has been developed that gives the net daily heat flux across the soil surface m the winter. The equation is based on the Foumer heat flow relation using the thermal gradients and conduchvity at the soil surface Input reqmres the daily maximum/ minimum air temperatures, solar radlahon and snow depth The cumulative daily soil heat flux was used to eshmate the amount of ice in the soil. Several years of data from weather stations near Lafayette, Indiana, and Twin Falls, Idaho, were used to test this approach. Given a site constant that accounts for soil type and cover conditions, it appears that the presence or absence of soil ice can generally be correctly predicted at least 70% of the time over a period of years that includes both warm and cold extremes.

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