Stokes Drift
For a pure wave motion in fluid dynamics, the Stokes drift velocity is the average velocity of a specific fluid parcel as it travels with the fluid flow. For instance, a particle floating at the free surface of water waves experiences a net Stokes drift velocity in the direction of wave propagation. Along with effects such as Ekman drift and geostrophic currents, the Stokes drift is one of the most relevant processes in the transport of marine debris.
Please note that we are using the meteorological convention to define directions (Read more here).
Speed and direction:
stokes_drift_speed:<speed_unit>
stokes_drift_dir:dComponents (u is positive for a west to east flow, v is positive for a south to north flow ):
stokes_drift_speed_u:<speed_unit>
stokes_drift_speed_v:<speed_unit>Available speed units: ms, kmh, kn
Examples
- https://api.meteomatics.com/2024-04-24T00:00:00Z/stokes_drift_speed_u:ms/90,-180_-90,180:1000x600/html
- https://api.meteomatics.com/2024-04-24T00:00:00ZP3D:PT1H/stokes_drift_speed_u:ms/27.852903,130.116770/html
- https://api.meteomatics.com/2024-04-24T00:00:00Z/stokes_drift_speed_v:ms/90,-180_-90,180:1000x600/html (upper right)
- https://api.meteomatics.com/2024-04-24T00:00:00ZP3D:PT1H/stokes_drift_speed_v:ms/27.852903,130.116770/html (lower right)
