qIncreased
Upwelling
q
Stronger glacial winds
ègreater wind-driven upwelling of nutrient-rich water along
coast and near equator.
qIncreased Nutrient Levels By Iron Fertilization
q
Stronger glacial winds
èDust rich in iron is blow to the ocean from arid
continental interiors
èIons fertilize the surface ocean and stimulate greater glacial
photosynthesis and productivity.
èThis fertilization effect stimulates the productivity in
mid-ocean regions far from costal upwelling.
q
q