Aerosol Optical Depth from 2000 to 2019 - GIS English

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Aerosol Optical Depth from 2000 to 2019

Aerosol optical depth is a measure of the extinction of the solar beam by dust and haze. In other words, particles in the atmosphere (dust, smoke, pollution) can block sunlight by absorbing or by scattering light. AOD tells us how much direct sunlight is prevented from reaching the ground by these aerosol particles. It is a dimensionless number that is related to the amount of aerosol in the vertical column of atmosphere over the observation location.
 A value of 0.01 corresponds to an extremely clean atmosphere, and a value of 0.4 would correspond to a very hazy condition. An average aerosol optical depth for the U.S. is 0.1 to 0.15.





Credit :  NASA Earth Observatory
Source  :  NASA Earth Observatory  -  ESRL NOAA

Aerosol Optical Depth from 2000 to 2019 Reviewed by Jamal CHAAOUAN on October 10, 2019 Rating: 5 Aerosol optical depth is a measure of the extinction of the solar beam by dust and haze. In other words, particles in the atmosphere (dust...

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