DTIC ADA575165: Effect of Wave Boundary Layer pdf

DTIC ADA575165: Effect of Wave Boundary Layer

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A full-spectral third-generation ocean wind-wave model (Wavewatch-III) implemented in the South China Sea is used to investigate the effects of the wave boundary layer on the drag coefficient and the sea-to-air transfer velocity of dimethylsulfide (DMS) during passage of Typhoon Wukong (September 5-11, 2000) with a maximum sustained wind speed of 38 m s(-1). The model is driven by the reanalyzed surface winds (1 deg x 1 deg, four times daily) from the National Centers for Environmental Prediction. It is found that the wave boundary layer evidently enhances (16.5%) the drag coefficient (in turn increases the momentum flux across the air-sea interface), and reduces (13.1%) the sea-to-air DMS transfer velocity (in turn decreases the sea-to-air DMS flux). This indicates the possibility of important roles of wave boundary layer in atmospheric DMS contents and global climate system

• Creator/s: Defense Technical Information Center
• Date: 9/1/2006
• Year: 2006
• Book Topics/Themes: DTIC Archive, , NAVAL POSTGRADUATE SCHOOL MONTEREY CA NAVAL OCEAN ANALYSIS AND PREDICTION LAB, *AIR WATER INTERACTIONS, *ATMOSPHERIC CHEMISTRY, *TROPICAL CYCLONES, REPRINTS, SOUTH CHINA SEA

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