Long term monitoring of bottom water and sea floor environments in off Otsuchi, Iwate.(981m)

Fiscal Year

2014

Title

Long term monitoring of bottom water and sea floor environments in off Otsuchi, Iwate.(981m)

Project and Theme

Project 3. Research on factors controlling open ocean benthopelagic ecosystem dynamics
Representative Organization: Japan Agency for Marine-Earth Science and Technology
Theme2. Marine environmental changes monitoring
Representative personShuichi Watanabe
OrganizationJapan Agency for Marine-Earth Science and Technology
DepartmentEastern Japan Marine Ecosystems Dynamics Project team

Research Information

Period and Interval
2014/06/24 - 2015/05/11
Research Area
39- 19.9470'N, 142- 26.960'E, 981m in water depth
Category
Mooring system (Observation buoy)
Overview
Deployment of long term monitoring system.Continuation of the observation by the system that was deployed last year.

Overview of the Observation

Research Point Table
Point
Coordinates39.332383,142.449533
Remarks981m in water depth
Results and Future Plan
Monitoring of current velocity, direction. water temperature, salinity, dissolved oxygen and turbidity. Photographs and videos at sea floor.

Investigation Item and Data Acquisition

Investigation ItemData Acquisition
Mooring system (Observation buoy)Water temperature (1 hour interval)
Mooring system (Observation buoy)Salinity (1 hour interval)
Mooring system (Observation buoy)Water depth (1 hour interval)
Mooring system (Observation buoy)Turbidity (1 hour interval)
Mooring system (Observation buoy)Dissolved oxygen concentration (1 hour interval)
Mooring system (Observation buoy)Current direction and intensity (1 hour interval)
Mooring system (Observation buoy)Picture of sea floor (4 day interval)
Mooring system (Observation buoy)Movie of sea floor (5 minutes in 1 week interval)

Reference

Person in charge of Investigation

Representative personKazumasa Oguri
OrganizationJapan Agency for Marine-Earth Science and Technology
DepartmentEastern Japan Marine Ecosystems Dynamics Project team

Keywords

Fiscal Year2014
OrganizationJapan Agency for Marine-Earth Science and Technology
CategoryMooring system (Observation buoy)
Research AreaSouth Sanriku
DisciplineOcean 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