Abstract
A canopy model is presented for estimating the diurnal or seasonal variations of heat balance component, surface tempera-ture, and soil water content. This model is composed of one canopy layer and two soil layers. The meteorological data required for the simulation are the daily amount of precipitation, the daily maximum and minimum air temperatures, the sunshine dura-tion, the daily-mean wind speed, the daily-mean vapor pressure, and the daily-mean air temperature. The results of model cal-culation agree well with observed values over a tanukimame field. Assuming that the observed value of soil water content is unknown, a method is proposed to estimate the leaf bulk coefficient for latent heat flux and soil water content using the vegetation vigor index that is determined by remote sensing.
