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Time Series of Tropical and Niño3.4 Standardized Sea Surface Temperature Anomalies

This plot displays three-month running average time series of standardized SST anomalies spatially averaged over the global tropics, the NINO3.4 region, and tropical ocean areas excluding the eastern Pacific Ocean.

The SST anomalies are calculated with respect to the 1981-2010 base period and standardized based upon the period 1950 to the latest complete calendar year. The time series plot for the global tropics includes a spatial average over all ocean areas from 25°S to 25°N, and is shown in red with the label "Tropics_SSTA". The time series plot for the NINO3.4 region indcludes a spatial average over 170°W to 120°W and 5°S to 5°N, and is shown in black with the label "NINO_3.4". The time series plot for tropical ocean areas excluding the eastern Pacific Ocean includes a spatial average over 80°W to 180° and 25°S to 25°N, and is shown in blue with the label "Tropics-East.Pac.SSTA".

Dataset Documentation

Time Series of Tropical and Niño3.4 Standardized Sea Surface Temperature Anomalies

Data
Extended Reconstructed SST (ERSST) Version 3b monthly sea surface temperature (in °C) on a 2.0° lat/lon grid
Data Source
NCEP, NCDC (ERSST Version 3b)
Analysis
Time series of three-month running averages of spatial averages of standardized monthly sea surface temperature anomalies calculated with respect to the 1981-2010 monthly climatology

Dataset

Access the dataset used to create this plot.

Helpdesk

Contact help@iri.columbia.edu with any technical questions or problems with this Map Room.