Figure 5. Offshore Ekman transport along the western coast of North America computed from long-term mean wind stress data for 1° squares adjacent to the coast, for January, April, July, and September (after Huyer, 1983). Leg 167 drill sites have been marked on the figure. Low upwelling in the California Borderlands coastal region (~30°-35°N) is because the coast retreats inland relative to the rest of the California margin and the stronger northerly winds remain offshore.

Figure 5. Offshore Ekman transport along the western coast of North America computed from long-term mean wind stress data for 1° squares adjacent to the coast, for January, April, July, and September (after Huyer, 1983). Leg 167 drill sites have been marked on the figure. Low upwelling in the California Borderlands coastal region (~30°-35°N) is because the coast retreats inland relative to the rest of the California margin and the stronger northerly winds remain offshore.