El Nino La Nina

Oceanography · Part 8

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Table of Contents

  1. 1.Walker Circulation and Bjerknes Feedback
  2. 2.Equatorial Kelvin and Rossby Waves in ENSO
  3. 3.Theoretical Models of ENSO
  4. 4.ENSO Indices and Monitoring
  5. 5.Teleconnections and Related Modes
  6. 6.Python: ENSO Index, Delayed Oscillator & Wavelet Analysis
  7. 7.Fortran: Equatorial Ocean Model (Kelvin & Rossby Waves)
  8. 8.ENSO Prediction and the Spring Predictability Barrier
  9. 9.ENSO Diversity: Central Pacific vs Eastern Pacific Events
  10. 10.Key Concepts Summary

Key Equations

$$\text{Warm SST east} \rightarrow \text{weak trades} \rightarrow \text{deeper thermocline east} \rightarrow \text{warmer SST east} \rightarrow \ldots$$
$$\text{Kelvin wave speed: } c_K = \sqrt{g'H_1} \approx 2.8 \text{ m/s (first baroclinic mode)}$$
$$\text{Rossby wave speed: } c_R = -\frac{c_K}{2n+1}, \quad n = 1, 2, 3, \ldots$$
$$\text{Correlation skill} = \frac{\text{Cov}(\text{predicted}, \text{observed})}{\sigma_{\text{pred}} \cdot \sigma_{\text{obs}}}$$

Equations are rendered with MathJax in the PDF with professional LaTeX typesetting.

Course Context

This PDF is part of the Oceanography course on CoursesHub.World. Explore the science of the seas from physical and chemical properties to marine biology and climate interactions. Covers ocean circulation, waves and tides, marine ecosystems, seafloor geology, climat...

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