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Climate Diagnostics Bulletin
Climate Diagnostics Bulletin - Home Climate Diagnostics Bulletin - Forecast Climate Diagnostics Bulletin - Extratropics


  Tropical Highlights

  Table of Atmospheric Indices  (Table 1)

  Table of Oceanic Indices  (Table 2)

  Time Series

  Time-Longitude Sections

  Mean & Anomaly Fields

  Appendix 1: Outside Contributions

Tropical Highlights


The pattern of tropical sea surface temperature (SST) anomalies

Tropical Highlights - January 2016



Sea surface temperatures (SSTs) remained well above-average across the central and eastern equatorial Pacific during January 2016 (Fig. T18, Table T2). The latest monthly Niņo indices were +2.6°C for the Niņo 3 region, +2.6°C for the Niņo 3.4 region, and +1.4°C for the Niņo 1+2 region (Table T2, Fig. T5). The depth of the oceanic thermocline (measured by the depth of the 20°C isotherm) also remained above-average across the eastern equatorial Pacific (Figs. T15, T16), and the corresponding sub-surface temperatures were 1-5°C above average (Fig. T17).

Also during January, the low-level westerly wind anomalies and upper-level easterly wind anomalies remained strong across the central and eastern equatorial Pacific (Table T1, Figs. T20, T21). Meanwhile, enhanced convection persisted across the central and east-central equatorial Pacific and suppressed convection was observed over Indonesia and western equatorial Pacific (Figs. T25, E3). Collectively, these oceanic and atmospheric anomalies reflect the continuation of a strong El Niņo.


For the latest status of the ENSO cycle see the ENSO Diagnostic Discussion at:

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