Studies on the turbulence and recovery process of the Sanriku coastal ecosystem by the giant tsunami

Fiscal Year

2013

Title

Studies on the turbulence and recovery process of the Sanriku coastal ecosystem by the giant tsunami

Project and Theme

Project 2. Studies on the Mechanisms of Marine Ecosystem Change
Representative Organization: Atmosphere and Ocean Research Institute The University of Tokyo
Theme3. Study on material circulation process changes accompanying the earthquake
Representative personToshi Nagata
OrganizationAtmosphere and Ocean Research Institute The University of Tokyo
DepartmentDepartment of Chemical Oceanography, Marine Biochemistry
Theme4. Elucidation of the actual situation and impact of land-based pollutant inflow
Representative personHiroshi Ogawa
OrganizationAtmosphere and Ocean Research Institute The University of Tokyo
DepartmentDepartment of Chemical Oceanography, Marine Biochemistry
Theme5. Construction of an ecosystem model integrating physical processes
Representative personKiyoshi Tanaka
OrganizationAtmosphere and Ocean Research Institute The University of Tokyo
DepartmentInternational Coastal Research Center, Coastal Ecosystem

Research Information

Period and Interval
2013/06/24 - 2013/06/29
Research Area
Offshore Otsuchi, Onagawa, and Kamaishi
0025_R01.pdf
Category
Research Cruise
Overview
Scientists involved in the Tohoku Ecosystem-Associated Marine Sciences (TEAMS) conducted research on pelagic and benthic environments in Tohoku area.

Overview of the Observation

Research Point Table
Point
NameON1
Coordinates38 25.25N,141 29.15E
RemarksOnagawa, inside of the bay, depth of 32 meters
NameON2
Coordinates38 25.5N,141 30.85E
RemarksOnagawa, inside of the bay, depth of 38 meters
NameON3
Coordinates38 25.8N,141 33E
RemarksOnagawa, inside of the bay, depth of 40 meters
NameON4
Coordinates38 25N,141 45E
RemarksOnagawa, beyond the bay, depth of 150 meters
NameON5
Coordinates38 25N,142 0E
RemarksOnagawa, beyond the bay, depth of 300 meters
NameON6
Coordinates38 25N,142 20E
RemarksOnagawa, beyond the bay, depth of 800 meters
NameON7
Coordinates38 25N,142 40E
RemarksOnagawa, beyond the bay, depth of 1400 meters
NameON8
Coordinates38 25N,143 0E
RemarksOnagawa, beyond the bay, depth of 1700 meters
NameKM1
Coordinates39 15.7N,141 54.1E
RemarksKamaishi, inside of the bay, depth of 20 meters
NameKM2
Coordinates39 15.5N,141 55.1E
RemarksKamaishi, inside of the bay, depth of 48 meters
NameKM3
Coordinates39 15.5N,141 56.65E
RemarksKamaishi, beyond the bay, depth of 70 meters
NameOT3
Coordinates39 21.6N,141 58.8E
RemarksOtsuchi, inside of the bay, depth of 65 meters
NameOT4
Coordinates39 20N,142 10E
RemarksOtsuchi, beyond the bay, depth of 200 meters
NameOT5
Coordinates39 20N,142 30E
RemarksOtsuchi, beyond the bay, depth of 1000 meters
NameOT6
Coordinates39 20N,142 50E
RemarksOtsuchi, beyond the bay, depth of 1600 meters
Results and Future Plan
Scientists involved in the Tohoku Ecosystem-Associated Marine Sciences (TEAMS) conducted research on pelagic and benthic environments in Tohoku area.

Investigation Item and Data Acquisition

Investigation ItemData Acquisition
CTDDepth, Temperature, Salinity
Water samplingNiskin water samplers attached to CTD were used at 15 points.
Sediment samplingMultiple Corer was used at 15 points.
Plankton samplingNorpac Twin plankton net was used at 15 points.

Reference

Related Observation Plan
FY2013 Studies on the turbulence and recovery process of the Sanriku coastal ecosystem by the giant tsunami
Related Observation Data
KK-13-1 CTD

Person in charge of Investigation

Representative personKazuhiro Kogure
OrganizationAtmosphere and Ocean Research Institute The University of Tokyo
DepartmentCenter for Earth Surface System Dynamics, Genetic Research

Keywords

Fiscal Year2013
OrganizationAtmosphere and Ocean Research Institute, The University of Tokyo
CategoryResearch Cruise
Research AreaSouth Sanriku
DisciplineOcean physics -> Water temperature
Ocean physics -> Salinity
Ocean physics -> Ocean current / Tidal current (Current direction/Current speed)
Ocean chemistry -> Salinity
Ocean chemistry -> Dissolved oxygen
Ocean chemistry -> Nutrients
Ocean chemistry -> Organic matter
Ocean environment -> Nutrients
Ocean environment -> Plant pigments
Ocean biology / Ocean ecology -> Biomass
Ocean biology / Ocean ecology -> Viruses
Ocean biology / Ocean ecology -> Bacteria
Ocean biology / Ocean ecology -> Plankton
Topography / Geology / Geophysics -> Marine sediments