Gravity, Isostasy and Creep Physics of the Solid Earth Supriyo Mitra Figure 2: Deflection of plumbline due to Himalayas Local Isostatic compensation Local Isostatic compensation Gravitational Potential and Acceleration Gravity of the Earth The Shape of the Earth Gravity Measurements Absolute Gravity measurement Relative Gravity measurement Free Air Correction δgF = (2h/R)g Free Air Anomaly g F = g obs – g(λ) + δg F Bouguer Correction