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Publication - Dr Hannah Susorney

    The thickness of radar-bright deposits in Mercury's northern hemisphere from individual Mercury Laser Altimeter tracks

    Citation

    Susorney, HC, James, PB, Johnson, CL, Chabot, NL, Ernst, CM, Mazarico, EM, Neumann, GA & Kinczyk, MJ, 2019, ‘The thickness of radar-bright deposits in Mercury's northern hemisphere from individual Mercury Laser Altimeter tracks’. Icarus, vol 323., pp. 40-45

    Abstract

    The discovery of Mercury's radar-bright deposits has expanded our understanding of volatiles in the solar system. Key to deciphering the history and origin of the radar-bright deposits is an estimate of the volume of radar-bright material that in turn requires a measure of the average thickness of the deposits. In this study we investigate changes in topography across radar-bright deposits hosted in flat-floored, complex craters using individual edited Mercury Laser Altimeter (MLA) tracks. We compare the difference in heights of radar-bright regions and non-radar-bright regions of the crater floor and the difference of similarly sized and located regions in non-radar-bright craters and show that the two populations cannot be distinguished. The similarity of topography in these two sets of craters allows an upper limit of 15 m to be placed on the thickness of the radar-bright deposits.

    Full details in the University publications repository