The composite map dubbed the black marble depicts earthly lights at night as observed.
Black marble nasa 2017.
This week april 12 2017 nasa scientists released the first new global map of earth at night since 2012.
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This image is one of several global images of the earth at night released in 2017.
Nasa has developed the black marble a daily calibrated corrected and validated product suite so nightlight data can be used effectively for scientific observations.
Scientists at nasa are working to automate nighttime viirs data processing so that data users are able to view nighttime imagery within hours of acquisition which could lead to other potential uses by research meteorological and civic groups.
Released on april 25 2017.
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By removing natural and stray light sources researchers have provided a clearer picture of the human footprint on earth and opened up new opportunities in disaster response demographics and applied research.