Research Article
Correlation Angles and Inner Products: Application to a Problem from Physics
Table 1
Date of various minima in plots of diameter or area . (Minima are identified with a change in the phase-locked state of the Earth's climate system).
| | Diameter D (from the 3 Pacific indices [1]) | Area (this paper) | |
| | 1 | 1875-1876 | 1875-1876 | | | 2 | 1880-1881 | 1880-1881 | | | 3 | 1882–1884 | 1883-1884 | | | 4 | 1889–1891 | 1889 | | | 4a | | 1892 | New | | 5 | 1894-1895 | 1894-1895 | | | 6 | 1897-1898 | 1897 | | | 6a | | 1904 | New | | 7 | 1908-1909 | 1907-1908 | | | 8 | 1912-1913 | 1912-1913 | | | 9 | 1916-1917 | X | No minimum | | 10 | 1919 | 1919 | | | 10a | | 1925 | New | | 10b | | 1928 | New | | 11 | 1931 | 1931 | | | 12 | 1941–1945 | 1941 | The broad minimum in [1] has been resolved into two. | | 12a | | 1944 | | | 12b | | 1948 | New | | 12c | | 1953 | New | | 12d | | 1955 | New | | 13 | 1956–1959 | 1959 | | | 14 | 1964–1966 | 1965 | The minimum in [1] has been resolved into two. | | 14a | | 1966 | | | 15 | 1969 | 1968-1969 | | | 15a | | 1972-73 | New | | 15b | | 1974-75 | New | | 16 | 1976-1977 | 1976-77 | | | 16a | | 1984-85 | New | | 17 | 1986-1987 | 1986-87 | | | 17a | | 1991 | New | | 18 | 2001-2002 | 2001 | | | Number of minima | 18 | 30 | |
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