Urban Water

The rise in urbanization and population growth has amplified concerns about Urban Water management. Our research focuses on sustainable solutions for water supply, treatment, and distribution in cities. Through advanced technologies and resource optimization, our goal is to promote responsible and efficient urban water use..

Study 1

  • The study develops a model to simulate the urban water cycle in suburban catchments near Tokyo, Japan, considering both natural and artificial factors.
  • The model accurately represents water movement, human water usage, and discharge, showing good agreement with observed data.
  • The study analyzes long-term variations and the impacts of artificial infiltration, contributing to a better understanding of urban hydrological processes and supporting integrated water management.

Study 2 

  • The study introduces a modeling approach for simulating infiltration systems in urban areas, comprising a hydrological sub-model and an infiltration system sub-model.
  • The model utilizes numerical simulations and the continuity equation to determine infiltration characteristics and simulate storm runoff while considering the effects of infiltration systems.
  • The model's performance is validated in a residential area with an infiltration system, showing its effectiveness in evaluating system performance and understanding its impact on stormwater runoff.

Study 3 

  • The study utilizes a specific hydrological process model to assess the impact of urbanization on the hydrological cycle and the effectiveness of infiltration systems in restoration.
  • A hilly catchment in Tokyo undergoing urban development is selected for the study, with model parameters derived from various data sources.
  • The model's performance is verified by comparing simulated and measured stream flows, and subsequent simulations are conducted to assess changes in the hydrological cycle caused by urbanization. Different restoration strategies, including infiltration trenches and on-site retention-infiltration systems, are explored and evaluated.