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National Oceanic and Atmospheric Administration

The Climate of 1997
Global Surface Temperature Anomalies

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This preliminary map shows thematically which areas of the world were warmer than average and which were cooler during 1997. The open (or blue) dots show cool anomalies, and the closed (or red) show warm anomalies. The size of the dot is proportional to the magnitude of the anomaly. The land data are from the NOAA NCDC Global Historical Climatology Network, and the averaging period was 1961-1990. Over the Oceans, the NOAA NCEP Reynolds blended satellite-ship-buoy analyses were used, with an averaging period of 1982-1997. In locations where both land and ocean data were available, the most representative data set was used.

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