"ad5bde75-1f54-4f7e-a958-3adaf9f40639" . "CENTRAL TROPICAL PACIFIC SST"^^ . "The Niño4 SST anomaly index is an indicator of western tropical Pacific El Niño conditions. It is calculated with SSTs in the box 160°E - 150°W, 5°S - 5°N."^^ . .