the gravimetric method is one of the most effective ways for the detection of subsurface structures such as tunnels, faulting, mineral deposits with the required density difference, especially in areas with rough topography and tectonized formations. it is possible to provide a more suitable model for better interpretation of the gravity anomaly. inverse modeling of gravity data is the most eff...

In the framework of extended theory gravity, an accelerating cosmological model has been presented in this paper anisotropic space-time. The gravity is considered as [Formula: see text] with matter field viscous fluid. role coefficient discussed on cosmic expansion issue. developed formalism, a variable Hubble parameter incorporated to express dynamical respect redshift. observed be compatible ...

To better understand the impact of climate forcing on Greenland ice sheet (GrIS), we study GrIS mass variations interannual timescale as observed by satellite mission Gravity Recovery and Climate Experiment (GRACE). By employing method empirical orthogonal function) analysis, find: (a) That are significantly correlated with Pacific Decadal Oscillation, suggesting a connection to changes Iceland...

When using the dynamic approach to recover time-variable gravity field, reference orbit generated by perturbation model and non-conservative force observed from accelerometer should be introduced at first, then observation equations of residual range rate are established. This introduces a error instrument noise. Thus, there low-frequency errors in rate. Currently, most studies only focus on ra...

mapping the edges of magnetized bodies is fundamental to the application of magnetic data to geologic mapping. whether as a guide for subsequent field mapping or as a predictive mapping tool in areas of limited exposure, delineating lateral magnetization changes provides information on not only lithological changes but also on structural regimes and deformation styles and trends. adding contact...

Using measurements of time-variable gravity from the Gravity Recovery and Climate Experiment satellites, we determined mass variations of the Antarctic ice sheet during 2002-2005. We found that the mass of the ice sheet decreased significantly, at a rate of 152 +/- 80 cubic kilometers of ice per year, which is equivalent to 0.4 +/- 0.2 millimeters of global sea-level rise per year. Most of this...