Author(s): Y. Jia; N. Tamai
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Keywords: No Keywords
Abstract: An integrated and distributed modeling of water and energy transfer is conducted in this study. Spatial heterogeneity of physical variables and scale problems have drawn attentions of both hydrologists and meteorologists in recent years. How to consider them in hydrology models and meteorology models is far from mature. Though statistic method is commonly studied at present (e.g., Avissar, 1992), nesting or explicit subgrid method is also observed (e.g., Seth et al., 1994). A similar nesting method is applied in this study to a sub-cathchment of the Tama river at the middle reach (Tokyo, Japan) which is partly urbanized. The study results show that there are large spatial variations of water and energy budgets which had to be considered in the water management of the catchment. Close relations are also shown between water balance and energy balance. The computed discharge is favorably matched by the observation at the outlet of the catchment.
Year: 1997