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In order to develop a new optical method to measure the refractive index of seawater having longterm stability, we propose to use a heterodyne Michelson interferometer. We made a prototype, and measured the difference of refractive index of pure water and 30/00 saline water in order to evaluate the possibility of the proposed method. The result coincided with the theoretically expected value within...
In the development of a model to predict the impacts caused by the discharge of dissociated water, we collected and analyzed the parameters needed for the model in the area for the calculation. The parameters are based on the existing study and the surveyed results. The prototype of this model was established to assess the diffusion process of the water which released from the seabed or water column...
As it takes about ten years since the current TRITON buoys have started being deployed, the current buoys were rather senescent. It has been necessary to develop new measurement equipments for the TRITON buoy. This study introduced the current situation on the development of meteorological sensor systems, water temperature sensor systems, and underwater non- contact data transmission system, which...
In order to understand the variation from intraseasonal to interannual time scale in the Indian Ocean, we have conducted observation by mooring buoy array mainly in the eastern tropical Indian Ocean. Here, some results of observational studies in terms of intraseasonal to semiannual change in the thermal field and recent observed Indian Ocean Dipole events are shown. Also future mooring buoy observation...
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