MODIS Chlorophyll from Indian Sub-continent

MODIS provides the unprecedented ability to measure chlorophyll fluorescence, which gives insight into the health of phytoplankton in the ocean. When phytoplankton are under stress, they no longer photosynthesize and begin to emit absorbed sunlight as fluorescence. In this image taken over the Arabian Sea, we see high concentrations of chlorophyll (red tones), indicating a denser concentration of the microscopic marine plant.

Scientific Visualization Studio, NASA Goddard Space Flight Center,

Published April 18, 2000
Data acquired April 18, 2000

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Terra > MODIS