Chlorophyll Time Series
Credit: Figure updated from Franz et al., State of the Climate in 2014, Bulletin of the American Meteorological Society. Download this image (PNG, 76.9 KB).
An 18-year continuous record shows variation in average chlorophyll-a concentrations between 40°N and 40°S latitude. Measurements from SeaWiFS (1997-2010) are shown in black, MODIS (Aqua) from 2002-2012 are shown in blue, and VIIRS (2011-2014) are shown in red. An average for all years - approximately 0.15 milligrams per cubic meter - is indicated by the grey horizontal line.
This figure was updated from Franz et al., State of the Climate in 2014, Bulletin of the Meteorological Society.
This figure was updated from Franz et al., State of the Climate in 2014, Bulletin of the Meteorological Society.