Research Article

Extraction of 10–30-Day Stable Components from a Boreal Atmosphere during ENSO Phases

Figure 1

Monthly change in the pentad average of the explained variance for 10–30-day STs of the Northern Hemisphere 500 hPa height field. The blue line denotes the La Niña year, the red line denotes the El Niño year, and the black line denotes the neutral year.
(a) Jan.-Feb.
(b) Feb.-Mar.
(c) Mar.-Apr.
(d) Apr.-May
(e) May-Jun.
(f) Jun.-Jul.
(g) Jul.-Aug.
(h) Aug.-Sep.
(i) Sep.-Oct.
(j) Oct.-Nov.
(k) Nov.-Dec.
(l) Dec.-Jan.