Because ocean color data is related to the presence of phytoplankton and particulates, it can be used to calculate the concentrations of material in surface waters and the level of biological activity; as phytoplankton concentration increases, ocean color shifts from blue to green (note that most CZCS images are false colored, so that high levels of phytoplankton appear as red or orange).
Ocean color data is connected to the presence of phytoplankton and particles, allowing for the calculation of material concentrations in surface waters and biological activity. As phytoplankton numbers increase, ocean color changes from blue to green (it's important to remember that most CZCS images are artificially colored, so high levels of phytoplankton appear as red or orange).