NUMERICAL STUDY ON EFFECT OF DENSITY STRATIFICATION ON WATER STRUCTURE VARIATION DUE TO TYPHOON IN ISE BAY AREA

Abstract

 In order to discuss the effect of density stratification on water structure variation in Ise Bay area due to typhoon, the present study conducted a hindcast simulation of water structure variation under the influence of Typhoon 0918 and a numerical experiment with strong density stratification using an air-seawater quality coupled model. As a result, density stratification was recognized to affect the flow and density variation process due to the typhoon. Moreover, the numerical results revealed that hypoxia rapidly disappeared when a strong flow in Ise Bay area was generated by a strong wind during the typhoon passage even in the case of strong stratification which would enhance the grow of hypoxia.