254 – Contributed Oral Poster Presentations: Section on Statistics and the Environment
Simulation Models for Ambient Water Quality Criteria for Dissolved Oxygen
Ryo Akaishi
The Institute of Statistical Mathematics
Kosei Iwase
Yokohama College of Pharmacy
Koji Kanefuji
The Institute of Statistical Mathematics
Mitsumasa Okada
The Open University of Japan
A three-dimensional water quality model is developed for simulating temporal and spatial variations of dissolved oxygen in the ambient water. This developed model predicts the spatial distribution of tidal current and dissolved oxygen to evaluate for the water quality criteria in Japan. In order to achieve and maintain the water quality conditions necessary to protect the aquatic living resources of the Chesapeake Bay and its tidal tributaries, the U.S. Environmental Protection Agency Region III has developed the guidance document, entitled Ambient Water Quality Criteria for Dissolved Oxygen, Water Clarity and Chlorophyll a for the Chesapeake Bay and Its Tidal Tributaries (Regional Criteria Guidance). Oxygen is one of the most essential environmental constituents supporting life.
