1991•PROCEEDINGS OF HYDRAULIC ENGINEERINGOpen access

Long-term Runoff Analysis by Tank Model Incorporated with Rainfall Interception and SPAC

Michio HASHINO, Hiromu Yoshida, Hideki Ichihara

Abstract

Long-term runoff analysis by a tank model incorporated with rainfall interception and SPAC (Soil-Plant-Atomosphere Continuum) is performed using observations of rainfall interception and daily atmospheric temperature besides rainfall and runoff. Parameters representing evaporation rates by rainfall interception and from ground water runoff and the transpiration rate of soil moisture through vegetation are identified by minimizing the square sum of residuals of runoff discharge.

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Available abstract

Key concepts: Interception, Surface runoff, Environmental science, Hydrology (agriculture), Transpiration, Runoff curve number, Vegetation (pathology), Evaporation