By comparison with the Atlantic Ocean, the physical oceanography of the Pacific was poorly known as late as the end of the 1930s. International collaboration to study the Pacific, attempted by oceanography committees of the Pacific Science Association, was a failure, owing to the scale of the enterprise, the low scientific abilities of the Pacific nations, and the lack of a compelling need. Even in the U.S.A., where the Scripps Institution of Oceanography was active, lack of good ships and personnel (...) reduced the effectiveness of Pacific oceanography. Scripps's physical oceanographer George F. McEwen was more physicist than physical oceanographer; he also became side-tracked into climatology. Only with the arrival of H. U. Sverdrup at Scripps in 1936 did Pacific physical oceanography begin to prosper, but its greatest success followed World War II, when techniques and approaches transplanted from the Atlantic became established. (shrink)