A hydrographic survey made from 95E to 50°30'E between 1N and 1S in December 1976- January 1977 indicates zonal pressure gradients as high as 10-4 dynes/g (pressure increasing to the east) in the near-surface. These are the strongest large-scale zonal pressure gradients measured in any equatorial ocean to date. A large volume of anomalously saline water was found along the equator east of the Maldive Islands....