--- cited_by: [] definition: |- The NINO3.4 index is one of several El Niño/Southern Oscillation (ENSO) indicators based on sea surface temperatures. NINO3.4 is the average sea surface temperature anomaly in the region bounded by 5°N to 5°S, from 170°W to 120°W. This region has large variability on El Niño time scales, and is close to the region where changes in local sea-surface temperature are important for shifting the large region of rainfall typically located in the far western Pacific. An El Niño or La Niña event is identified if the 5-month running-average of the NINO3.4 index exceeds +0.4°C for El Niño or -0.4°C for La Niña for at least 6 consecutive months. href: https://data.globalchange.gov/gcmd_keyword/01b96758-13f3-4cea-8447-decae36b1bde.yaml identifier: 01b96758-13f3-4cea-8447-decae36b1bde label: EAST CENTRAL TROPICAL PACIFIC SST parent_identifier: b83895e9-bac8-49fe-bcf5-8fe4d8fcaa16 uri: /gcmd_keyword/01b96758-13f3-4cea-8447-decae36b1bde