Diffusion
; Estimation
; Drifting buoys
; Oil transport
; Sagami Bay
; Sea surfaces
; Spilled oil
; Sponge rubber
; Turbulent diffusivities
; Surface waters
; computer simulation
; diffusion
; diffusivity
; observational method
; oil spill
; pollutant transport
; sea surface
; sponge
; turbulent flow
; computer simulation
; diffusion
; experimental model
; Japan
; quantitative study
; analysis
; bay
; oil spill
; water flow
; water pollutant
; Honshu
; Japan
; Kanto
; Sagami Bay
; petroleum
; sea water
; water pollutant
; Bays
; Japan
; Petroleum
; Petroleum Pollution
; Seawater
; Water Movements
; Water Pollutants, Chemical
Scopus学科分类:
Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要:
Despite many previous in situ estimates of horizontal diffusivity below the sea surface, horizontal diffusivity at the sea surface, which is a parameter required in the prediction of oil diffusion, has not been formulated. This study conducted in situ estimations to quantify horizontal diffusivity at the sea surface. To measure the horizontal diffusivity at and below the sea surface, clusters of thin sponge rubbers (simulating spilled oil), together with drifting buoys, were deployed on successive occasions in Sagami Bay, Japan. The experimental results revealed that horizontal diffusivity was larger at the sea surface than below. Based on the results, a procedure for estimating horizontal diffusivity at the sea surface was introduced to predict the diffusion of spilled oil, which was verified using numerical simulations. The simulation results showed good agreement with observations, suggesting the procedure is appropriate for the estimation of horizontal diffusivity at the sea surface. � 2016 The Authors
Port and Airport Research Institute, Yokosuka, Kanagawa, Japan; Marine Environmental Information Group, Marine Information and Tsunami Department, Port and Airport Research Institute, 3-1-1 Nagase, Yokosuka, Kanagawa, Japan; Oil Spill Response Research Grp., Port and Airport Research Institute, Nagase 3-1-1, Yokosuka, Japan
Recommended Citation:
Matsuzaki Y.,Fujita I.. In situ estimates of horizontal turbulent diffusivity at the sea surface for oil transport simulation[J]. Marine Pollution Bulletin,2017-01-01,117(2018-01-02)