Downward continuation is a key technique for processing and interpreting gravity anomalies, as it has major role in reducing values to horizontal planes identifying small shallow sources. However, can be unstable inaccurate, particularly when depth increases. While the Milne Adams–Bashforth methods based on numerical solutions of mean-value theorem have partly addressed these problems, more acc...

Potential field data are of great significance to the study geological characteristics. Downward continuation potential converts from a high plane low plane. Since this method is mathematically an inverse problem solution, it unstable. The Tikhonov regularization strategy effective means downward field. However, achieving high-precision requirements in stage precise geophysical exploration stil...

SUMMARY The purpose of marine seismic experiments is to provide information the structure and physical properties subsurface. P-wave velocity distribution most commonly modelled property, usually by inversion arrival times or waveform attributes. In wide-angle reflection/refraction (WAS) experiments, phases identified in data recorded ocean bottom seismometers (OBS) are used image relatively de...

the use of stokes boundary values problems for the determination of the geoid requires that gravity anomalies (as boundary values) are known on geoid (as boundary). while, the gravity observations are measured on the earth's surface, to obtain boundary data, the surface gravity anomalies does are downward from the terrain onto geoid. for downward continuation (dwc) of surface gravity anoma...