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Fig. 3 | Earth, Planets and Space

Fig. 3

From: Recovery and validation of Mars ionospheric electron density profiles from Mariner 9

Fig. 3

Top. Electron density profiles from ingress occultations on orbits 1–7, based on the data recovered in this project. Electron densities in the profiles from orbits 1, 2, 3, 4, 5, 6, and 7 have been multiplied by factors of 100, 101, 102, 103, 104, 105, and 106, respectively, for clarity. This panel is truncated at 100 km for consistency with the bottom panel. Bottom. Electron density profiles from ingress occultations on orbits 1–7, as reported by Zhang et al. (1990). A similar scaling was also applied to the electron density profiles in this panel. Numbers above each profile indicate their solar zenith angles (degrees). Bottom panel reproduced from Fig. 7 of Zhang et al. (1990) by permission of American Geophysical Union

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