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Expeditions
| 1997* | Upwelling off South Africa ("Joides Resolution", Leg 175) |
| 1996*, 1998*, 2005* | Canaries ("Meteor") |
| 1995 * | off Chile ("Sonne") |
| 1988*, 1989*, 1990*, 1991*, 1992*, 1993*, 1996*, 2000* | South Atlantic ("Meteor") |
| 1986 | East Pacific/Peru ("Joides Resolution", Leg 112) |
| 1984, 1985 | Arctic ("Polarstern") |
| 1983, 1984, 1985* | Antarctic ("Polarstern") |
| 1983 | Equatorial Atlantic ("Meteor") |
| 1981 | Antarctic ("Meteor") |
| 1975 | Baltic ("Meteor") |
| 1971 | West Africa ("Meteor") |
| 1977-79*, 1984*, 1987*, 1993* | Bermuda |
| 1980*/1981* | Philippines |
| 1969 - 1985 | North Sea and Baltic ("Alkor" and "Littorina") |
* Chief Scientist