Fiscal Year
2013
Title
Monitoring and modeling of river water mixing and diffusion in estuaries, brackish waters and coastal areas
Project and Theme
Project 2. Studies on the Mechanisms of Marine Ecosystem Change
Representative Organization: Atmosphere and Ocean Research Institute, The University of Tokyo
Theme7. Monitoring and modeling of river water mixing and diffusion in estuaries, brackish waters and coastal areas| Representative person | Hidekatsu Yamazaki |
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| Organization | Tokyo University of Marine Science and Technology |
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| Department | Faculty of Marine Science, Department of Ocean Sciences |
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Research InformationPeriod and Interval2013/06/10 - 2013/06/10
Research Area
CategoryField survey
OverviewThe purpose of this field research is to understand the river water mixing and diffusion around Otsuchi bay. Conducted by 3 monitoring buoys, we will observe a water quality continuously. We will also observe a water structure by using new Tow-Yo instrument, Yoing Ocean Data Acquisition Profiler (YODA Profiler).
Overview of the Observation
Research Point Table
| Point | | Name | Stn.1 |
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| Coordinates | 39.33817,141.91433 |
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| Name | Stn.2 |
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| Coordinates | 39.345,141.9395 |
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| Name | Stn.3 |
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| Coordinates | 39.35,141.96 |
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| Polygon | | Name | Line1 |
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| Coordinates | 39.35506,141.91022/39.33275,141.93161 |
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| Name | Line1 |
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| Coordinates | 39.34128,141.92833/39.33267,141.89794 |
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Research Point Map & Track Chart Map & Point List
Results and Future PlanWe mounted three mooring arrays in the Otsuchi Bay. In addition, We observed temperature, salinity, fluorescence, turbidity and the current field in the Otsuchi Bay. Although, the stratification was weak, the run-up of the internal waves was observed.
Investigation Item and Data Acquisition
| Investigation Item | Data Acquisition |
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| Water quality | Temperature,Salinity,Ocean current,Tidal current(Current direction Current speed),Turbidity,Fluorescence |
| Observation buoy | Temperature, Salinity, Ocean current Tidal current(Current direction Current speed), Atmospheric pressure, Air temperature, Sea level |
Reference
Related Observation Plan
Related Observation Data
Person in charge of Investigation
| Representative person | Hidekatsu Yamazaki |
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| Organization | Tokyo University of Marine Science and Technology |
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| Department | Faculty of Marine Science, Department of Ocean Sciences |
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| Fiscal Year | 2013 |
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| Organization | Tokyo University of Marine Science and Technology |
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| Category | Field survey |
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| Research Area | South Sanriku |
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| Discipline | Ocean physics -> Water temperature
Ocean physics -> Salinity
Ocean physics -> Ocean current / Tidal current (Current direction/Current speed)
Ocean physics -> Transparency / Turbidity
Ocean chemistry -> Salinity
Ocean chemistry -> Dissolved oxygen
Ocean environment -> Plant pigments
Marine meteorology -> Atmospheric pressure
Marine meteorology -> Air temperature / Dew point temperature / Wet bulb temperature
Marine meteorology -> Sea surface temperature
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