Multiyear La Niña does not increase the likelihood of transitioning to a strong El Niño

Submitted by Joana on Tue, 2025-03-11 08:40

Figure 1. More persistent cold conditions in boreal spring and early summer after a multiyear La Niña, compared to those before a strong El Niño (left, a, c), inhibit an eastward movement and enhancement of atmosphere deep convection (right, b, d), leading to a decoupled ocean and atmosphere that delay the growth of a subsequent El Niño.

UN Ocean Decade Conference Session on Co-Designing Ocean Observing for the Tropics

Submitted by Yang Zhao on Fri, 2024-12-20 00:39
By Juliet Hermes, Ann-Christine Zinkann, Weidong Yu, Yosuke Fujii, Scott Glenn, Cheyenne Stienbarger, Emma Heslop, Gregory Foltz, David Legler, Belén Martín Míguez, Tammy Morris, Ronnie Noonan-Birch, Elisabeth Remy, Sabrina Speich, Anya Waite, Hindumathi Palanisamy
 

The Influence of Contrasting La Niña Evolutions on Indian Monsoon Rainfall Dynamics

Submitted by Di Zhang on Tue, 2024-12-10 02:55

Our CLIVAR member Satyaban Bishoyi Ratna from Climate Dynamics Panel and Monsoons Panel recently published the article which explored two distinct types of evolution in La Niña and the associated asymmetry in the response of the ISMR. It was observed that India receives significantly more and less rainfall during ELLA and LALA events, respectively, and ISMR has a spatial diversity with a northeast-southwest dipole pattern. 

Pages