Abstract
We propose a new geophysical flow circulation model (GeoCIRC) based on object-oriented programming to compute surface and ground water flows. In this study, we focus on an infiltration processes and illustrate the basic structure of the model. The computational domain is discretized with vertical column objects that compute vertical infiltration processes within each column. They are horizontally interconnected and compute horizontal infiltration processes. The each column object consists of layer objects of different properties and resolutions to express weather, ground and geological characteristics. As a computational example, vertical circulation due to the horizontal density difference was reproduced. Then, to verify the accuracy of the model, GeoCIRC was applied to river discharge process in the Kushiro River. The computed results showed good agreements with the CoD of 0.95 and 0.81 for the Gojukkoku and Hirosato river discharge stations, respectively.
