Niño 4 SST Index from the HadISST1.1

• Nino 4 is the area averaged anomalies over the Nino 4 region (5N-5S, 160E-150W) using a climatolgy of 1981-2010. Map of ENSO regions. Nino 4 is the furthest west.

Time-series List

• Niño 4 (anomaly: 1981-2010 mean removed): Standard PSL Format, CSV, NetCDF (What is standard format?)

Usage Restrictions

• None

Caveats

• None

Related Time-series

• Nino 3.4

Links

• ENSO page with areas.

Analysis pages

• WRIT correlations
• WRIT time-series

Original Source

• Index is calculated at NOAA/PSL

Time-series source dataset(s)

• Input data for the index calculation is the HadISST1.1 SST analysis.

References

• Rayner N. A., D. E. Parker, E. B. Horton, C. K. Folland, L. V. Alexander, D. P. Rowell, E. C. Kent, A. Kaplan, Global analyses of sea surface temperature, sea ice, and night marine air temperature since the late nineteenth century, J. Geophys. Res., 108 (D14), 4407, doi:10.1029/2002JD002670, 2003.