FastFind »   Lastname: doi:10.1029/ Year: | Advanced Search  

AGU: Geophysical Research Letters

 

Keywords

  • air-sea interaction
  • tropical cyclone Nari
  • Kuroshio

Index Terms

  • Oceanography: Physical: Air/sea interactions
  • Oceanography: Physical: Western boundary currents
  • Oceanography: General: Numerical modeling
  • Oceanography: General: Upwelling and convergences
  • Atmospheric Processes: Ocean/atmosphere interactions

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 35, L12605, 7 PP., 2008
doi:10.1029/2008GL033942

Air-sea interaction between tropical cyclone Nari and Kuroshio

Chau-Ron Wu

Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan

Program in Atmospheric and Oceanic Sciences, Princeton University, Princeton, New Jersey, USA

Yu-Lin Chang

Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan

Lie-Yauw Oey

Program in Atmospheric and Oceanic Sciences, Princeton University, Princeton, New Jersey, USA

C.-W. June Chang

Department of Atmospheric Science, National Taiwan University, Taipei, Taiwan

Yi-Chia Hsin

Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan

The air-sea interaction between tropical cyclone Nari (Sep/6–16/2001) and Kuroshio is studied using satellite observations and an ocean model. Nari crossed the Kuroshio several times, which caused variations in typhoon intensity. Nari weakened when it was over the shelf north of Kuroshio where cooling took place due to mixing of the shallow thermocline. The cyclonic circulation penetrated much deeper for the slowly-moving storm, regardless of Nari's intensity. Near-inertial oscillations are simulated by the model in terms of the vertical displacement of isotherms. The SST cooling caused by upwelling and vertical mixing is effective in cooling the upper ocean several days after the storm had passed. At certain locations, surface chlorophyll-a concentration increases significantly after Nari's departure. Upwelling and mixing bring nutrient-rich subsurface water to the sea surface, causing enhancement of phytoplankton bloom.

Received 11 March 2008; accepted 8 May 2008; published 25 June 2008.

Citation: Wu, C.-R., Y.-L. Chang, L.-Y. Oey, C.-W. J. Chang, and Y.-C. Hsin (2008), Air-sea interaction between tropical cyclone Nari and Kuroshio, Geophys. Res. Lett., 35, L12605, doi:10.1029/2008GL033942.

Cited By

Please wait one moment ...