Cross-shore transport variability in the California Current: Ekman upwelling vs. eddy dynamics

► We analyze the transport variability of the CCS using model passive tracers. ► We look at the linear and nonlinear cross-shore transport of nearshore waters. ► Surface cross-shelf transport of subsurface water is controlled by Ekman upwelling. ► The net horizontal transport at any given depth is strongly controlled by eddies.