Abstract：We apply the finite power terrain correction method(i.e., the Tesseroid forward modelling in harmonic spectral domain) to the gravity gradient calculation in terms of lunar topography. Using gravity data from the Gravity Recovery and Interior Laboratory(GRAIL) mission and terrain information recovered from the Moontopo720 model, we calculate the total gravity tensors anomaly after terrain correction at the height of GRAIL satellite. By taking advantage of the multi-component characteristics of gravity gradient and the relevant experimental results, we estimate the spatial horizontal range distributions of underground mascons through the horizontal gradient anomaly. Using the total gravity gradient anomaly maps, we preliminarily verify the distributions of main fault structures caused by tidal gravity.
YE Zhourun,LIANG Xinghui,LIU Jinzhao et al. Exploration and Interpretation of Lunar Underground Concealed Structures Using Full Gravity Gradients Anomaly[J]. jgg, 2023, 43(4): 409-413.
