Temporal evolution of sky polarization during solar eclipse totality

Joseph A. Shaw; Laura M. Eshelman; Martin Jan Tauc; Glenn E. Shaw

doi:10.1117/12.2531269

6 September 2019 Temporal evolution of sky polarization during solar eclipse totality

Joseph A. Shaw, Laura M. Eshelman, Martin Jan Tauc, Glenn E. Shaw

Proceedings Volume 11132, Polarization Science and Remote Sensing IX; 111320C (2019) https://doi.org/10.1117/12.2531269
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

The sky polarization pattern during solar eclipse totality shifts from the usual daytime clear-sky pattern, with maximum polarization in an arc located 90° from the Sun, to one with maximum polarization slightly above the horizon in a ring nominally concentric about the zenith. A sequence of 9 visible-wavelength all-sky images are shown throughout totality for the 21 August 2017 solar eclipse from a site near Rexburg, ID USA (43.8294°N, 111.8849°W). A neutral region appeared in the southwest quadrant of the all-sky images, directly opposite the eclipsed Sun, and evolved in size and radial position throughout the 2 min 17 s of totality.

Conference Presentation

Citation Download Citation

Joseph A. Shaw, Laura M. Eshelman, Martin Jan Tauc, and Glenn E. Shaw "Temporal evolution of sky polarization during solar eclipse totality", Proc. SPIE 11132, Polarization Science and Remote Sensing IX, 111320C (6 September 2019); https://doi.org/10.1117/12.2531269

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