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Sea surface temperature and heat budget variability in ECCO2

Sea surface temperature and heat budget variability in ECCO2. SST variability in ECCO2 and beyond…. ECCO2 AVHRR-AMSRE ROMS model satellite data model. SST variability in ECCO2 and beyond…. Mixed layer heat budget and SST.

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Sea surface temperature and heat budget variability in ECCO2

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  1. Sea surface temperature and heat budget variability in ECCO2

  2. SST variability in ECCO2 and beyond…. ECCO2 AVHRR-AMSRE ROMS model satellite data model

  3. SST variability in ECCO2 and beyond….

  4. Mixed layer heat budget and SST Project Questions: • Which processes dominate on which time scales? • How do the components of this equation vary with location? • Does resolution matter? • How big are the associated errors?

  5. Mixed layer heat budget and SST Approach: • Choose three oceanic regions (approx. 5°x5°) in the North Pacific Ocean: • the subtropical gyre • an upwelling region off the US West Coast • a dynamically active area in the Kuroshio region • Choose different frequency bands: • 6 hourly • Daily • Monthly

  6. Mixed layer heat budget and SST Approach – part 2: • In a first step calculate ∂T/∂t and the first two terms on the right hand side – treat advection and diffusion as residual “Technical” questions: • Which mixed layer depths? • KPPmld vs. KPPhbl • Other definitions • Which ∆T?

  7. SST - KPPmld - 5 deg - correlation KURO SUBT USWE 6hourly Daily Daily max dT/dt - h 6hourly Daily Daily max dT/dt - dh/dt 6hourly Daily Daily max dT/dt - 1/h 6hourly Daily Daily max dT/dt - 1/h * dh/dt

  8. dT/dh - dh/dtblue: 10*dT/dt, red: dh/dt

  9. Correlation dT/dt - dh/dtblue: KURO, red: SUBT, green: USWE

  10. SST - KPPhbl - 5 deg - correlation KURO SUBT USWE 6hourly Daily Daily max SST - MLD 6hourly Daily Daily max dT/dt - dh/dt 6hourly Daily Daily max dT/dt - MLD MLD leads 6hourly Daily Daily max dT/dt - MLD dT/dt leads

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