Dynamic Behavior of the Moisture near the Soil-Atmosphere Boundary

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概要

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• Dynamic relations between the moisture in the atmosphere and the soil are studied based on a field experiment. Sensors to measure the moisture in the skin layer near the atmosphere-soil boundary were developed and applied to the bare soil surface. The amount of moisture change in a shallow soil layer (less than 4 cm depth) was observed to be related to the rate of evaporation from the surface on the basis of daily averages. On the hourly basis, however, the agreements are poor. The soil moisture even at the small depth (-1 cm) began to decrease around noon although the evaporation started immediately after the start of insolation. The hydraulic diffusivity obtained from the phase difference of diurnal moisture variation is shown to vary with the volumetric water content of the soil.

• 大阪府立大学の論文
• 1990-03-31

著者

• Omoto Yukio

  Laboratory Of Agricultural And Environmental Meteorology College Of Agriculture University Of Osaka

• MONJI Nobutaka

  College of Agriculture, University of Osaka Prefecture

• Monji N

  College Of Agriculture University Of Osaka Prefecture

• Monji Nobutaka

  Laboratory Of Atmospheric Environment College Of Agriculture

• HAMOTANI Ken

  Laboratory of Agricultural and Environmental Meteorology, College of Agriculture

• Hamotani Ken

  Laboratory Of Agricultural And Environmental Meteorology College Of Agriculture

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