Before revision: On smaller scales, cyclonic winds induce Ekman transport which causes net divergence and upwelling, or Ekman suction, while anti-cyclonic winds cause net convergence and downwelling, or Ekman pumpingPond & Pickard p 295 Ekman transport is also a factor in the circulation of the ocean gyres .
After revision: and garbage patchesOn smaller scales, cyclonic winds induce Ekman transport which causes net divergence and upwelling, or Ekman suction, while anti-cyclonic winds cause net convergence and downwelling, or Ekman pumpingPond & Pickard p 295 Ekman transport is also a factor in the circulation of the ocean gyres .