Reduction in 317–780&thinsp;nm radiance reflected from the sunlit Earth during the eclipse of 21 August 2017

Herman, Jay; Wen, Guoyong; Marshak, Alexander; Blank, Karin; Huang, Liang; Cede, Alexander; Abuhassan, Nader; Kowalewski, Matthew

doi:https://doi.org/10.5194/amt-11-4373-2018

Articles | Volume 11, issue 7

https://doi.org/10.5194/amt-11-4373-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-11-4373-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 7

Research article

|

25 Jul 2018

Research article |

| 25 Jul 2018

Reduction in 317–780 nm radiance reflected from the sunlit Earth during the eclipse of 21 August 2017

Jay Herman, Guoyong Wen, Alexander Marshak, Karin Blank, Liang Huang, Alexander Cede, Nader Abuhassan, and Matthew Kowalewski

Data sets

Archiving and distributing Earth science data at the NASA Langley Research Center NASA DSCOVR project https://doi.org/10.5067/EPIC/DSCOVR/L1B.001

Short summary

The DSCOVR/EPIC instrument located near the Lagrange 1 Earth–Sun gravitational balance point is able to view the entire sunlit disk of the Earth. This means that during the eclipse of 21 August 2017 EPIC was able to see the region of totality and the much larger region of partial eclipse. Because of this, EPIC is able to measure the global reduction of reflected solar flux. For the wavelength range 388 to 780 nm, we estimated a 10 % reduction in reflected radiation.