Image: Pixabay
Predictions for a third consecutive year of La Nina are high. According to the latest projections, a third period in a row with colder oceanic conditions – La Nina – is rare.
The Nino Operational Index (ION) – an index for classifying oceanic conditions, which is based on the moving average of three-month sea surface temperatures, has been applied since 1950 to identify periods of La Niña, Neutrality and El Niño.
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Between 1950 and 2022, only three sequences were identified in which a third consecutive year of La Niña occurred. These being the years 1956-59, 1975-78 and 2000-03. In the third year of La Niña, the tendency is for the wettest areas to be on the north coast of Brazil. As a result, it generates stronger high pressure in the center and south of Brazil, potentially intensifying the dry climate.
On the other hand, in this evaluation of the average rainfall behavior in the third year of La Niña, the result shows above-normal precipitation for parts of Argentina.
Source: AGROLINK
