Dr. Jackson's research has two main focuses. The first focus is near-surface processes in the upper ocean and, ultimately, how these processes may influence the biology. For this focus, Dr. Jackson studies the northeast Pacific Ocean, the Arctic Ocean, the subtropical northwestern Pacific Ocean, and the subtropical North Atlantic Ocean. For example, Dr. Jackson found that warming and freshening in the Arctic Ocean from climate change has caused a restructuring of the upper ocean water mass assembly, which influences sea ice melt and phytoplankton biomass. The second focus is coastal oceanography, in particular how mesoscale and finescale physical processes influence biology. Dr. Jackson currently has a research program underway in South Africa that studies how surf-zone processes affect larval dispersal.