Monitoring of surface waves and profile of water properties in the southern part of Otsuchi Bay

Fiscal Year

2013

Title

Monitoring of surface waves and profile of water properties in the southern part of Otsuchi Bay

Project and Theme

Project 2. Studies on the Mechanisms of Marine Ecosystem Change
Representative Organization: Atmosphere and Ocean Research Institute The University of Tokyo
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
2013/04/01 - 2014/03/31
Every one hour monitoring from October 3, 2012, 12:00 p.m. JST. Monitoring of water property was stopped due to disconnection of the cable on December 6, 2013.
Research Area
Off Nagasaki in the southern part of Otsuchi Bay, Iwate Prefecture
Research Point Table
Point
NameBuoy for monitoring waves and wind
Coordinates39 20.651N,141 57.62E
NameBuoy for monitoring water properties
Coordinates39 20.606N,141 57.663E
Category
Mooring system (Observation buoy)
Overview
A GPS wave buoy with an anemometer and a profiling buoy, moored off Nagasaki on the southern coast of Otsuhi Bay in October 2012, have been operated to observe surface wind and waves, and the vertical profile of water quality (water temperature, salinity, dissolved oxygen, chlorophyll-a concentration, turbidity, pH and ORP) every one hour

Investigation Item and Data Acquisition

Investigation ItemData Acquisition
Measurement of surface wind by an ultrasonic anemometer10 minutes average of wind speed and direction
Measurement of surface waves by a single mode GPS wave sensor20 minutes wave statistics (Maximum, 1/10 maximum and significant wave heights, and related wave periods and directions)
Measurement of vertical profile of water qualitywater temperature, salinity, dissolved oxygen, chlorophyll-a concentration, turbidity, pH and ORP

Reference

Related Observation Result
FY2013 Monitoring of surface waves and profile of water properties in the southern part of Otsuchi Bay

Person in charge of Investigation

Representative personKosei Komatsu
OrganizationUniversity of Tokyo
DepartmentGraduate School of Frontier Sciences

Keywords

Fiscal Year2013
OrganizationThe University of Tokyo
CategoryMooring system (Observation buoy)
Research AreaSouth Sanriku
DisciplineOcean physics -> Water temperature
Ocean physics -> Salinity
Ocean physics -> Transparency / Turbidity
Ocean chemistry -> Salinity
Ocean chemistry -> Dissolved oxygen
Ocean chemistry -> pH
Ocean environment -> Plant pigments
Marine meteorology -> Wind direction / Wind velocity
Marine meteorology -> Waves (period / height / direction)