Moho Geometry Estimation Beneath the Gulf of Guinea From Satellite Gravity Data Based on a Regularized Non‐Linear Gravity Inversion

In this work, we present a new gravimetric Moho model over the Gulf of Guinea computed from inversion global gravity EIGEN-6C4 model. The computation procedure contains regularized non-linear algorithm. Before applying algorithm, data have been corrected effects topography, bathymetry, and sediments. To calculate these corrections, forward modeling has applied using tesseroids to take into account earth curvature, via Legendre Quadrature integration technique. Bouguer disturbances integrates use hyperparameters in particular regularization parameter, anomalous density contrast reference depth. This method tested on synthetic contaminated by normally distributed noise. Through test, showed its effectiveness estimating application produced high-resolution model, whose depths vary between 7.75 44.50 km. greatest (greater than 40 km) are located along eastern part study area. comparison our with isostatic Airy, GEMMA (GOCE Exploitation for Modeling Applications) CRUST1.0 models, globally shows good similarities. exhibits large residuals around continental margin, thus reflecting limit areas great depth gradients. differences observed certain regions such as southern Nigeria show impact neglect crustal mantle sources accuracy solutions obtained after inversion. However, yields an improved representation undulations compared previous models.