Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Simulation of the Mixed Layer in the Western Equatorial Pacific Warm Pool

  • Jang, Chan-Joo (Coastal and Harbor Engineering Research Laboratory, KORDI) ;
  • Noh, Yign (Department of Atmospheric Sciences, Yonsei University)
  • Published : 2002.06.30
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Abstract

The upper ocean in the western equatorial Pacific warm pool during TOGA-COARE IMET IOP was simulated using a one-dimensional turbulence closure ocean mixed-layer model, which considered recent observations, such as the remarkable enhancement of turbulent kinetic energy near the ocean surface. The shoaling/deepening of the mixed layer and warming/cooling subsurface water in the model were in reasonable agreement with the observations. There was a significant improvement in simulating the cooling trend of the sea surface temperature under a westerly wind burst with heavy rainfall over previous simulations using bulk mixed-layer models. By contrast the simulated sea surface salinity (SSS) departed significantly from the observed SSS, especially during a westerly burst and the subsequent restratification period, which might be due to 3-D control processes, such as downwelling/upwelling or advection.

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