Plan

( Top of the page ) ｜ Research Division of Sediment and Material Transport ｜ Research Division of Environmental Science and Technology of Tidal Flat and Sediment ｜ Research Division of Environmental Modeling

Research Division of Sediment and Material Transport

Objectives: To clarify the material supplied from the terrestrial region and the atmosphere

FY 2005	Establishment of the fix observation line and methodology of the field experiment
FY 2006	Clarifying re-suspension, flocculation and deposition of suspended sediment
FY 2007	Calculation and proposal of the reduction technology of the material load from terrestrial region that flows into the Ariake Sea Estimation of the material flux related to bottom sediment in the inner part of the Ariake Sea
FY 2008	Establishment of the methodology of the estimation of the material (nutrients and organic carbons) flux from the terrestrial region, air, and bottom sediment.
FY 2009	Estimation of the long term change of the material flux in the Ariake Sea for the boundary condition of the ecosystem model

( Top of the page ) ｜ Research Division of Sediment and Material Transport ｜ Research Division of Environmental Science and Technology of Tidal Flat and Sediment ｜ Research Division of Environmental Modeling

Research Division of Environmental Science and Technology of Tidal Flat and Sediment

Objectives:

FY 2005	Survey of occurrence of hypoxic water mass, movement of heavy metal, denitrification in a tideland and water quality of creek
FY 2006	Survey of metal concentration in a biota, and nitrogen cycle in sediment Investigation of mechanism of occurrence of hypoxic water mass, and reduce of water load Verifying the effect of sand banking
FY 2007	Elucidate of metal concentration in a biota and its influence Investigation of prevention measures of hypoxic water mass Flaming a model of nitrogen cycle in sediment Verifying the effect of sand banking
FY 2008	Elucidate of metal concentration in a biota and its influence Investigation of prevention measures of hypoxic water mass Building the model of nitrogen cycle in sediment Verifying the continuity of effect of sand banking
FY 2009	Elucidate of metal concentration in a biota and its influence Investigation and generalize of prevention measures of hypoxic water mass Investigation of the model of nitrogen cycle in sediment Examination of selection of point to construct a sand banking

( Top of the page ) ｜ Research Division of Sediment and Material Transport ｜ Research Division of Environmental Science and Technology of Tidal Flat and Sediment ｜ Research Division of Environmental Modeling

Research Division of Environmental Modeling

Objectives:

FY 2005	Collect monitoring data of the Ariake Sea taken by national and prefectural agencies. Construct the systems for water quality analysis and numerical simulation. Conduct preliminary survey in the Ariake Sea.
FY 2006	Clarify the sediment transport processes and its implications for the ecosystem dynamics.
FY 2007	Construct an ecosystem simulation model of the Ariake Sea and conduct the monitoring and experiments to take basic parameters for the model.
FY 2008	Establish the ecosystem simulation model to simulate the dynamics of the lower trophic level in the Ariake Sea.
FY 2009	Asses the influence of the construction of the Isahaya Sea Dyke on the ecosystem of the Ariake Sea with the numerical simulation model.