Hydrostation 'S'

In 1954, Dr. Henry M. Stommel initiated Hydrostation 'S' - a deep-water research mooring - to gather information on the physical nature of the ocean in an effort to address fundamental questions about currents and air-sea gas exchange. Since then, scientists have visited the station biweekly, resulting in the world's longest-running time-series for physical and chemical oceanographic data, including ocean temperature, salinity, and dissolved oxygen measurements.

Data from Hydrostation 'S' have been used by scientists around the world for research on a variety of topics, including:

  • Temporal variations in dissolved nutrient stocks
  • Phytoplankton population dynamics, seasonal cycles, and blooms
  • Variability in oceanic CO2 and biogeochemical cycles
  • Microbial genomics and dynamics
  • Inter-annual and decadal-scale variability of the North Atlantic Ocean and Sargasso Sea
  • Heat, salinity, and carbon budgets of the open ocean
  • Paleoclimate reconstructions

Project Contact

Dr. Rod Johnson
Assistant Scientist
Tel: 441-297-1880 x699


Professor Nicholas Bates
Senior Scientist and Director of Research
Tel: 441-297-1880 x209


Related Items

Publications Using Hydrostation 'S' Data
Hydrostation 'S' Data
Bermuda Atlantic Time-series Study (BATS)