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Monthly Sea Surface Temperature Greater Than 28°C

This map displays the extent of monthly sea surface temperatures for the globe that are 28°C or above for the month indicated, compared to the mean extent for the 1971-2000 base period for the same month of the year.

Monthly sea surface temperatures are from the Reynolds and Smith OISST version 2 sea surface temperature dataset. Shaded ocean areas are where the monthly average sea surface temperature is 28°C or above for the month indicated. The thick black line traces the location of the 28°C isotherm in the 1971-2000 climatology for the same month of the year. In the tropical oceans, a sea surface temperature of 28°C is often seen as a threshold temperature that can indicate where deep convection is possible in the tropical atmosphere.

Dataset Documentation

Monthly Sea Surface Temperature Greater Than 28°C

Data
Reynolds and Smith OISST Version 2 monthly sea surface temperature (in °C) on a 1.0° lat/lon grid
Data Source
NCEP (OISST Version 2)
Analysis
Monthly average sea surface temperature, with areas below 28°C masked out, and the 1971-2000 climatological position of the 28°C isotherm contoured

Dataset

Access the dataset used to create this map.

Helpdesk

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