Research notes and updates from the team.
In February 2023, equatorial sea surface temperatures (SSTs) in the central-eastern Pacific Ocean returned to an ENSO-neutral state (the NINO3.4 index value in February 2023 was -0.44 °C). The most recent weekly SST anomalies for the tropical Pacific indicate further warming (as of the week of 08 March, the NINO3.4 index was -0.1 °C).
Read more →In January 2023, equatorial sea surface temperatures (SSTs) in the central-eastern Pacific Ocean remained cooler than normal, exhibiting persistent La Niña conditions (the NINO3.4 index value in January 2023 was -0.75C). The most recent weekly (08 Feb 2023) anomaly in the NINO3.4 region was -0.5 °C, showing a weakening of the current La Niña conditions in the tropical Pacific.
Read more →In December 2022, the equatorial sea surface temperatures (SSTs) in the central-eastern tropical Pacific Ocean remained cooler than normal, exhibiting persistent La Niña conditions (NINO3.4 index value in December 2022 was -0.84C).
Read more →In November 2022, the equatorial sea surface temperatures (SSTs) in the central-eastern tropical Pacific Ocean remained cooler than normal, exhibiting persistent La Niña conditions (NINO3.4 index value in November 2022 was -0.93C).
Read more →In October 2022, the equatorial sea surface temperatures (SSTs) in the central-eastern tropical Pacific Ocean remained cooler than normal, exhibiting persistent La Niña conditions (NINO3.4 index value in October 2022 was -1.03C).
Read more →In September 2022, the equatorial sea surface temperatures (SSTs) in the central-eastern tropical Pacific Ocean remained cooler than normal, exhibiting persistent La Niña conditions (NINO3.4 index value in September 2022 was -1.09).
Read more →