Tropical Highlights

  Table of Atmospheric Indices  (Table 1)

  Table of Oceanic Indices  (Table 2)

  Time Series

• SOI, Tahiti/Darwin SLP & OLR  T1
  
• SOI & Equatorial SOI  T2
  
• Zonal Wind & Temperature  T3
  
• 850-hPa Zonal Wind  T4
  
• Nino region SST indices  T5
  

  Time-Longitude Sections

  Mean and Anomaly Fields

  Appendix 1: Outside Contributions

NOVEMBER 2024

FIGURE T2.  Three-month running mean of a CDAS/Reanalysis-derived (a) Southern Oscillation Index (RSOI), (b) standardized pressure anomalies near Tahiti (solid) and Darwin (dashed), (c) an equatorial SOI ([EPAC] - [INDO]), and (d) standardized equatorial pressure anomalies for (EPAC) (solid) and (INDO) (dashed). Anomalies are departures from the 1991-2020 base period means and are normalized by the mean annual standard deviation. The equatorial SOI is calculated as the normalized difference between the standardized anomalies averaged between 5N-5S, 80W-130W (EPAC) and 5N-5S, 90E-140E (INDO).