Tropical Highlights

  Table of Atmospheric Indices  (Table 1)

  Table of Oceanic Indices  (Table 2)

  Time Series

  Time-Longitude Sections

• Mean & Anom SLP  T6
  
• Mean & Anom Zonal Wind  T7
  
• Mean & Anom OLR  T8
  
• Mean & Anom SST  T9
  
• Pentad SLP Anom  T10
  
• Pentad OLR Anom  T11
  
• Pentad 200-hPa VPOT Anom  T12
  
• Pentad Zonal Wind Anom  T13
  
• Anomalous Eq. Zonal Wind  T14
  
• Depth of the 20C Isotherm  T15
  

  Mean & Anomaly Fields

  Appendix 1: Outside Contributions

Pentad 200-hPa Velocity Potential Anomalies

DECEMBER 2008

FIGURE T12.  Time-longitude section of anomalous 200-hPa velocity potential averaged between 5N-5S (CDAS/Reanalysis). Contour interval is 3 x 10⁶ m²s^-1. Dashed contours indicate negative anomalies. Anomalies are departures from the 1979-1995 base period pentad means. The data are smoothed temporally using a 3-point running average.