                         Astronomy Picture of the Day

                         Astronomy Picture of the Day

    Discover the cosmos! [1] Each day a different image or photograph of our
 fascinating universe is featured, along with a brief explanation written by a
                           professional astronomer.

                               2018 September 9
                                      [2]
                                Aerosol Earth
 Model Visualization Credit: NASA Earth Observatory [3] , GEOS FP [4] , Joshua
                                    Stevens

Explanation: On August 23, 2018 [5] the identification and distribution of
aerosols [6] in the Earth's atmosphere is shown in this dramatic, planet-wide
visualization. Produced in real time, the Goddard Earth Observing System
Forward Processing (GEOS FP [7] ) model relies on a combination of
Earth-observing [8]  satellite and ground-based data to calculate the presence
of types of aerosols, tiny solid particles and liquid droplets, as they
circulate above the entire planet. This August 23rd model shows black carbon
particles in red from combustion processes, like smoke from the fires in the
United States and Canada, spreading across large stretches of North America
and Africa. Sea salt aerosols are in blue, swirling above threatening typhoons
near South Korea and Japan, and the hurricane looming near Hawaii. Dust shown
in purple hues is blowing over African and Asian deserts. The location of
cities and towns can be found from the concentrations of lights based on
satellite image data of the Earth at night [9] .

                          Tomorrow's picture: Sun day

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    Authors & editors: Robert Nemiroff [21] (MTU [22] ) & Jerry Bonnell [23]
                                  (UMCP [24] )
          NASA Official:  Phillip Newman Specific rights apply [25] .
              NASA Web Privacy Policy and Important Notices [26]
              A service of: ASD [27]  at NASA [28]  / GSFC [29]
                           & Michigan Tech. U. [30]
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Site notes:
  [1] archivepix.html
  [2] image/1809/atmosphere_geo5_2018235_eq2400.jpg
  [3] https://earthobservatory.nasa.gov/
  [4] https://gmao.gsfc.nasa.gov/GMAO_products/
  [5] https://earthobservatory.nasa.gov/images/92654/
just-another-day-on-aerosol-earth
  [6] https://earthobservatory.nasa.gov/global-maps/ MODAL2_M_AER_OD
  [7] https://gmao.gsfc.nasa.gov/GMAO_products/
  [8] https://www.nasa.gov/topics/earth/overview/ index.html
  [9] ap170709.html
  [10] ap180831.html
  [11] archivepix.html
  [12] lib/apsubmit2015.html
  [13] lib/aptree.html
  [14] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [15] calendar/allyears.html
  [16] /apod.rss
  [17] lib/edlinks.html
  [18] lib/about_apod.html
  [19] http://asterisk.apod.com/discuss_apod.php?date=180901
  [20] ap180902.html
  [21] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [22] http://www.phy.mtu.edu/
  [23] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  [24] http://www.astro.umd.edu/
  [25] lib/about_apod.html#srapply
  [26] https://www.nasa.gov/about/highlights/HP_Privacy.html
  [27] https://astrophysics.gsfc.nasa.gov/
  [28] https://www.nasa.gov/
  [29] https://www.nasa.gov/centers/goddard/
  [30] http://www.mtu.edu/
