File name: sphere_ao_nino_temperature.png
Original Resolution: 720 × 720
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This composite map shows temperature anomalies for periods in the historical record (from 1950-2009) when El Niño and the negative phase of the Arctic Oscillation coincided. Note that this historical composite closely matches temperature anomalies observed this winter. (NOAA image by Ned Gardiner, Climate Program Office, and Michelle L’Heureux, Climate Prediction Center, using data based on NCEP/NCAR Reanalysis with a 1971-2000 climatology.)