Distribution type evaluation method of snow and ice water resources

摘要

PPROBLEM TO BE SOLVED: To provide a distribution type of an evaluation method for snowice as a water resource such as predicting future variation by grasping a variation in accurate snowice water resource quantity in objective region and variation in outflow rate of the objective region, for example, by the eventual output, outflow rate for snowfall and snow melting in order to construct a system by verifying and correcting actual outflow and calculation outflow using a distribution type of an outflow model. PSOLUTION: The objective region is partitioned in a grid. From snowfall in each grid by meteorological data and each geographical conditions and the outflow of each grid including snow melting by a phenomenological model based on snowfall quantity, snow melting, soil penetration and evaporation, the outflow rate of the whole objective region is calculated from a pseudo river channel network by actual river data and geological data. By verifying and comparing the outflow and the actual outflow and correcting parameters for correcting the snowfall quantity in each grid and calculating the snowfall quantity, snow melting or outflow, accurate snowice water resources in the objective region is grasped with the distribution type of the evaluation method for the snowice water resources. PCOPYRIGHT: (C)2006,JPO&NCIPI