The evolution of upper ocean thermal structure at 10°N, 125°W during 1997-1998
Farrar, J. Thomas
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KeywordThermoclines; Ocean-atmosphere interaction; Roger Revelle (Ship) Cruise Genesis 4; Thomas G. Thompson (Ship) Cruise TN73; Melville (Ship) Cruise PACS03MV
In this thesis I have endeavored to determine the factors and physical processes that controlled SST and thermocline depth at 10°N, 125°W during the Pan American Climate Study (PACS) field program. Analysis based on the PACS data set, TOPEX/Poseidon sea surface height data, European Remote Sensing satellite wind data, and model simulations and experiments reveals that the dominant mechanisms affecting the thermocline depth and SST at the mooring site during the measurement period were local surface fluxes, Ekman pumping, and vertical mixing associated with enhancement of the vertical shear by strong near-inertial waves in the upper ocean superimposed upon intra-seasonal baroclinic Rossby waves and the large scale zonal flow.
Submitted in partial fulfillment of the requirements for the degree of Master of Science at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution September 2003
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