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GCOS Ocean Physics ECV - Ocean Surface Stress

Ocean Surface Stress (OSS) is the two-dimensional vector drag at the bottom of the atmosphere and the dynamical forcing at the top of the ocean. OSS influences the air-sea exchange of energy, water (evaporation) and gases. Ocean surface stress vector components (u and v) is important for determining the large scale momentum forcing of the ocean, and consequent ocean circulation including ocean upwelling regions. Accurate knowledge of stress magnitudes is also essential for reliable computations of air-sea heat fluxes (e.g. sensible and latent heat fluxes) as well as air-sea gas exchanges and mass fluxes (e.g. CO2 and fresh water). Stress is also coupled with surface waves, and is hence essential for marine safety.

Product Requirements:

  • Frequency:  Hourly to monthly
  • Resolution:  10-100km
  • Required Measurement uncertainty:  0.001-4Nm2
  • Stability (per decade unless otherwise specified:  Not specified
  • Standards/References:  See EOV specification sheets at www.ioc-goos-oopc/obs/ecv.php
  • Entity (in situ):  JCOMM


Data Sources: