Continuing advances within unmanned aerial vehicles and scalar magnetic sensor technology are revolutionizing geophysical remote sensing. For perspective, examples of high resolution, low noise data presented in this study enabled detection accurate positioning human-made ferrous objects with a total mass 0.5 kg, from altitudes around above 2 m. However, these new possibilities come requirement...

Abstract The well-known, traditional way to extend P-wave acoustic impedance data between and beyond the well log locations is post-stack inversion of seismic usually available in surroundings boreholes. A relatively new trend exploration based on pre-stack CDP gathers providing both P- S-wave sections (and volumes), as estimated density data. This methodology often called simultaneous model-ba...

A key objective of the current Juno mission (Bolton et al., 2017, https://doi.org/10.1126/science.aal2108) is direct determination secular variation (time dependency) Jupiter's internal magnetic field in order to further understand dynamics interior. Here, we find that residuals a static, baseline model are consistent with effects variation, specifically arising from zonal drift field. We prese...

S U M M A R Y We develop and study an adjoint-based inversion method for the simultaneous recovery of initial temperature conditions and viscosity parameters in time-dependent mantle convection from the current mantle temperature and historic plate motion. Based on a realistic rheological model with temperature-dependent and strain-rate-dependent viscosity, we formulate the inversion as a PDE-c...

1. ABSTRACT Experiments undertaken in the 1970s demonstrated the sensitivity of radar backscatter to soil moisture conditions [1]. More recent advances in active microwave remote sensing have confirmed the potential for using current satellite data for the generation of soil moisture maps at different scales [2,3]. However, in addition to its strong sensitivity to the soil water content, radar ...