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

SOI, Tahiti and Darwin SLP and OLR Anomalies

MARCH 2009

FIGURE T1.  Five-month running mean of the Southern Oscillation Index (SOI) (top), sea-level pressure anomaly (hPa) at Darwin and Tahiti (middle), and outgoing longwave radiation anomaly (OLR) averaged over the area 5N-5S, 160E-160W (bottom). Anomalies in the top and middle panels are departures from the 1951-1980 base period means and are normalized by the mean annual standard deviation. Anomalies in the bottom panel are departures from the 1979-1995 base period means. Individual monthly values are indicated by "x"s in the top and bottom panels. The x-axis labels are centered on July.