Fig. 2From: Ionospheric responses on the 21 August 2017 solar eclipse by using three-dimensional GNSS tomographyThe time variations of the reconstructed electron densities at 260 km altitude plane (a–d), 42oN latitude plane (e–h), and − 100oE longitude plane (i–l). The red lines in a–c indicate the path of total eclipse. The white star is the location of maximum obscuration of solar radiationBack to article page