ESTIMATION OF DIFFUSION COEFFICIENT IN SHALLOW WATER REGION BY USING A VIDEO CAMERAAND BALLOON

Abstract

In order to monitor the environment in the coastal zone, a monitoring system with a digital video camera, which moored to a balloon, is developed in this study. From some images captured by the developed monitoring system the diffusion coefficient over the artificial tidal flat of Hannan Second District in Osaka Bay, and the seawater purification system through use of biological intake of oyster growth promoted by bubbling in Katakami Bay in Nagasaki. The estimated values of the diffusion coefficients at the both observation sites have same order 10^-2 m²/s.