Monitoring over-winter soil water dynamics in a freezing and snow-covered environment using a thermally insulated tensiometer

Yukiyoshi Iwata, Tomoyoshi Hirota

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Water potential below a frozen soil layer was continuously monitored over an entire winter period (using thermally insulated tensiometers sheltered in a heated chamber) along with other soil, snow and atmospheric variables. In early winter, the freezing front advanced under a thin snow cover, inducing upward soil water flow in the underlying unfrozen soil. The freezing front started to retreat when the snow cover became thick enough to insulate the soil, resulting in the reversal of the flow direction in the unfrozen zone. These data provide a clear illustration of soil water dynamics, which have rarely been monitored with a tensiometer.

Original languageEnglish
Pages (from-to)3013-3019
Number of pages7
JournalHydrological Processes
Volume19
Issue number15
DOIs
Publication statusPublished - Oct 15 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Water Science and Technology

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