Research Article
Weakening Relationship between East Asian Summer Monsoon and Asian-Pacific Oscillation after 1990s
Table 1
Strong and weak APO years in two periods.
| ā | Strong years | Weak years |
| P1 | 1949, 1953, 1956, 1960, 1961, 1962, and 1963 | 1969, 1976, 1980, 1983, 1986, 1987, and 1988 | P2 | 2000, 2006, 2012, 2013, and 2016 | 1992, 1993, 2003, 2014, and 2015 |
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