Fig. 18.
Niño Regions. The Niño 3.4 region (5°S to 5°N; 170°W to 120°W); The Niño 4 region (5°S to 5°N; 160°E to 150°W); The Niño 3 region (5°S to 5°N; 150°W to 90°W); The Niño 1＋ 2 region (10°S to 0 °; 90°W to 80°W).
Figure is from NOAA.
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