Chang Ya-Ting

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Chang
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Ya-Ting
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  • Article
    Observations of the cold wake of Typhoon Fanapi (2010)
    (John Wiley & Sons, 2013-01-19) Mrvaljevic, Rosalinda K. ; Black, Peter G. ; Centurioni, Luca R. ; Chang, Ya-Ting ; D'Asaro, Eric A. ; Jayne, Steven R. ; Lee, Craig M. ; Lien, Ren-Chieh ; Lin, I.-I. ; Morzel, Jan ; Niiler, Pearn P. ; Rainville, Luc ; Sanford, Thomas B.
    Several tens of thousands of temperature profiles are used to investigate the thermal evolution of the cold wake of Typhoon Fanapi, 2010. Typhoon Fanapi formed a cold wake in the Western North Pacific Ocean on 18 September characterized by a mixed layer that was >2.5 °C cooler than the surrounding water, and extending to >80 m, twice as deep as the preexisting mixed layer. The initial cold wake became capped after 4 days as a warm, thin surface layer formed. The thickness of the capped wake, defined as the 26 °C–27 °C layer, decreased, approaching the background thickness of this layer with an e-folding time of 23 days, almost twice the e-folding lifetime of the Sea Surface Temperature (SST) cold wake (12 days). The wake was advected several hundreds of kilometers from the storm track by a preexisting mesoscale eddy. The observations reveal new intricacies of cold wake evolution and demonstrate the challenges of describing the thermal structure of the upper ocean using sea surface information alone.