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Measurement and Modeling of Bubbles Induced by Wind Wave Breaking

Introduction

An accurate estimation of gas transfer velocity at the air-sea interface is very important to understand environmental mechanisms of the earth. A wind dependent gas transfer model by Liss and Merlivat model has widely used the last decade. The gas transfer velocity of the Liss and Merlivat model increases rapidly when the wind speed exceeds 13m/s. This rapid increase of gas transfer velocity is explained by several reasons such as enhancements of wind and breaking wave induced turbulence, breaking wave induced air bubbles, and sea spray. However, quantitative roles and detail mechanisms of the enhancement are not well known due to the lack of detail measurements. To understand the gas transfer enhancement in high wind speed region, the bubble mediate gas transfer is one of important phenomenon.

This project has bee started since 2001.


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Collaborators

  • Masahiro Imamura, CRIEPI

Project Results

References