Fiscal Year
2012
Title
Hydrographic observation and deployment of mooring off Sanriku
Project and Theme
Project 3. Research on factors controlling open ocean benthopelagic ecosystem dynamics
Representative Organization: Japan Agency for Marine-Earth Science and Technology
Theme3. Long-term monitoring of the physic-chemical environment in fisheries grounds| Representative person | Shuichi Watanabe |
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| Organization | Japan Agency for Marine-Earth Science and Technology |
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| Department | Eastern Japan Marine Ecosystems Dynamics Project team |
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Research InformationPeriod and Interval2013/03/07 - 2013/03/14
Research Area
CategoryMooring system (Observation buoy)
OverviewThis cruise of Oshoro maru (OS252) is conducted under the TEAMS project, namely Tohoku Ecosystem Array of Marine Sciences. Detailed investigation is hydrographic observation and mooring deployments of the sediment trap and the underwater profiling buoy system equipped with CTD sensor (SEA-SAW).
Overview of the Observation
Research Point Table
| Point | | Name | Point1:O-1 |
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| Coordinates | 39.241,142.2345 |
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| Remarks | Mooring Point |
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| Name | Point1:O-2 |
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| Coordinates | 39.23083,142.3275 |
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| Remarks | Mooring Point |
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| Name | Point1:O-3 |
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| Coordinates | 39.22967,142.46017 |
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| Remarks | Mooring Point |
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Research Point Map & Track Chart Map & Point List
Results and Future PlanAll hydrocasts were conducted using 12-position, 12 liter Niskin bottles carousel system with SBE
CTD-DO system. During this cruise, 3 casts of CTD observation were carried out. Seawater samples of salinity, nutrients, TA, DIC, DOC, 18O-H2O, Chl.a and HPLC were collected by 12 liter Niskin bottles mounted on the CTD/Carousel Water Sampling System and a bucket at stations O-1, O-2 and O-3. The distributions of these properties will be determined as soon as possible after this cruise.
Investigation Item and Data Acquisition
| Investigation Item | Data Acquisition |
|---|
| Hydrographic observation | CTD, FRRF (Chl.a, PAR), Dissolved inorganic carbon, total alkalinity, nutrients, salinity, 18O-H2O, dissolved organic carbon, chl.a, HPLC |
| sediment trap | sinking particles |
| underwater profiling buoy system | CTD |
Reference
Related Observation Plan
Related Observation Data
Person in charge of Investigation
| Representative person | Masahide Wakita |
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| Organization | Japan Agency for Marine-Earth Science and Technology |
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| Department | Eastern Japan Marine Ecosystems Dynamics Project team |
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| Fiscal Year | 2012 |
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| Organization | Japan Agency for Marine-Earth Science and Technology |
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| Category | Mooring system (Observation buoy) |
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| Research Area | South Sanriku |
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| Discipline | Ocean physics -> Water temperature
Ocean physics -> Salinity
Ocean chemistry -> Salinity
Ocean chemistry -> Nutrients
Ocean chemistry -> Organic matter
Ocean chemistry -> Total carbonic acid
Ocean chemistry -> Alkalinity
Ocean chemistry -> Others
Ocean environment -> Nutrients
Ocean environment -> Plant pigments
Ocean environment -> Organic carbon
Ocean environment -> Alkalinity
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