Flowing water model is a computer program not the real earth ecosystem.
Explanation:
The flowing water model is a simulated computer program that integrates the land, aster, and groundwater-surface systems and can calculate the demand for each land-use type.
Such as agriculture, urban, native, and natural vegetation. It's similar to that of earth's flowing water as it based on the simar feature of the water system as of earth.
Due to its just a simulation or model its cannot predict the varieties of the monsoon and ned's a single one-dimensional flow through a network that is set to incorporate time. But the earth is an unpredictable and dynamic system.