Fig. 5: The impacts of decadal southward wind shift on decadal WWV skewness in observation.
From: Multi-year La Niña frequency tied to southward tropical Pacific wind shift
An empirical orthogonal function analysis is applied to the zonal wind response over the domain of (10°S–5°N, 130°E–80°W) based on an 11-yr, 31-yr, and 51-yr sliding window. A The first principal pattern represents the southward wind shift pattern using 11-yr sliding window. B The WWV skewness vs the corresponding principal component (s.d.). C, D and E, F The same as (A, B) but based on 31-yr and 51-yr sliding window, respectively. The impacts of southward wind shift on WWV skewness is also evident in observation.
