Happy Earth Day 2015!

Satellite: Suomi-NPP Sensor: VIIRS Date: 9 April 2015 Description:  Data from six orbits of the Suomi-NPP spacecraft have been assembled  into this perspective composite of southern Africa and the surrounding oceans.  Tropical Cyclone Joalane is seen over the Indian Ocean. Data used:   The image was constructed from six orbits of surface reflectance (rhos)   data using the 671, 551, and 443 nm bands for red, green, and blue   respectively. Projection:  near-sided perspective projection from 8300 kilometers above 50 South by 40 East Projection details:  mapproject -Rd -JG40/-50/2.3/0/0/0/60/60/150

Satellite: Suomi-NPP
Sensor: VIIRS
Date: 9 April 2015
Description:
Data from six orbits of the Suomi-NPP spacecraft have been assembled
into this perspective composite of southern Africa and the surrounding oceans.
Tropical Cyclone Joalane is seen over the Indian Ocean.
Data used:
The image was constructed from six orbits of surface reflectance (rhos)
data using the 671, 551, and 443 nm bands for red, green, and blue
respectively.
Projection:
near-sided perspective projection from 8300 kilometers above 50 South by 40 East
Projection details:
mapproject -Rd -JG40/-50/2.3/0/0/0/60/60/150Image Credit: Ocean Biology Processing Group at NASA’s Goddard Space Flight Center 

This composite image of southern Africa and the surrounding oceans was captured by six orbits of the NASA/NOAA Suomi National Polar-orbiting Partnership (NPP) spacecraft on April 9, 2015, by the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument. Tropical Cyclone Joalane can be seen over the Indian Ocean.

Winds, tides and density differences constantly stir the oceans while phytoplankton continually grow and die. Orbiting radiometers such as VIIRS allows scientists to track this variability over time and contribute to better understanding of ocean processes that are beneficial to human survival on Earth. The image was created by the Ocean Biology Processing Group at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

IMG_7564On the Web: :http://oceancolor.gsfc.nasa.gov/ and http://www.nasa.gov/npp

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