SCIENCE FACT: How to display upwelling. An example from the central Great Barrier Reef/ Australia

The following satellite image is an example of how to use blooms to visualize upwelling. The color index shows the amount of chlorophyll a measured on the surface water, with red being the highest.
Chlorophyll a is great for localizing algal blooms, since it is used by algae for photosynthesis. 

In addition, the image shows little arrows indicating wind speed and direction. You can see that the highest chlorophyll amounts are found right on the coastline where the wind blows surface waters directly away from the coast, leaving space for upwelling bottom water.

Check out the scientific marine database: oceancurrent.imos.org.au to look at other relationships in the southern ocean.

http://oceancurrent.imos.org.au/CGBR_chl/latest.html