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....
Eriksen, Charles C.. 1979. "An equatorial transect of the Indian Ocean." Journal of Marine Research 37, (2). https://elischolar.library.yale.edu/journal_of_marine_research/1466