Estimation of Surface Soil Water Content of Sand Dune at Night

Yasushi Abe, Kyoichi Otsuki, Makio Kamichika

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

It is well known that soil water content at the surface of sand increases at night, which is dry in the daytime. The mechanism of this phenomenon, however has not quantitatively clarified because continuous measurement of nighttime soil water content is very difficult. Thus, in this study, the method to estimate nighttime surface soil water content was examined by using the meteorological and soil physical data measured at Tottori sand dune in 1995. Albedo of the infrared radiation and thermal conductivity of the sand surface, which are readily calculable, were selected as the parameters of the estimation equation. Albedoes can calculate from the surface temperatures of sand measured by thermocouple and radiation thermometer, and sky temperature measured by radiation thermometer. Thermal conductivities can calculate from the radiation balance, heat balance, and temperature gradient at soil surface. The results show that thermal conductivities would give satisfying estimations of surface soil water content of sand surface.

Original languageEnglish
Pages (from-to)185-190
Number of pages6
JournalJournal of Agricultural Meteorology
Volume53
Issue number3
DOIs
Publication statusPublished - Jan 1 1997
Externally publishedYes

Fingerprint

dunes
dune
soil water content
thermal conductivity
soil water
water content
sand
surface water
thermometers
infrared radiation
radiation balance
thermocouples
heat balance
temperature profiles
temperature gradient
surface temperature
albedo
soil
soil surface
heat

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Atmospheric Science

Cite this

Estimation of Surface Soil Water Content of Sand Dune at Night. / Abe, Yasushi; Otsuki, Kyoichi; Kamichika, Makio.

In: Journal of Agricultural Meteorology, Vol. 53, No. 3, 01.01.1997, p. 185-190.

Research output: Contribution to journalArticle

Abe, Yasushi ; Otsuki, Kyoichi ; Kamichika, Makio. / Estimation of Surface Soil Water Content of Sand Dune at Night. In: Journal of Agricultural Meteorology. 1997 ; Vol. 53, No. 3. pp. 185-190.
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