in 1946, pdo switched to a cool phase.
in 1946, pdo switched to a cool phase.
pacific decadal oscillation:49
pacific decadal oscillation
1945/1946: the pdo changed to a "cool" phase, the pattern of this regime shift is similar to the 1970s episode with maximum amplitude in the subarctic and subtropical front but with a greater signature near the japan while the 1970s shift was stronger near the american west coast.