Downward Continuation of Gravity Signal Based on the Multiscale Edge Constraint

2005 ◽  
Vol 48 (1) ◽  
pp. 74-80 ◽  
Author(s):  
Jin-Sheng NING ◽  
Hai-Hong WANG ◽  
Zhi-Cai LUO
Keyword(s):  
Downward Continuation ◽  
Gravity Signal ◽  
Downward Continuation Of Gravity

A NOTE ON DOWNWARD CONTINUATION OF GRAVITY

Geophysics ◽  
1954 ◽  
Vol 19 (1) ◽  
pp. 71-75 ◽  
Author(s):  
César A. Trejo
Keyword(s):  
Finite Differences ◽  
Downward Continuation ◽  
Upward Continuation ◽  
Finite Differences Method ◽  
Downward Continuation Of Gravity

Comparing calculated and exact values in an ideal example, it is shown that Peters’ proposed method of downward continuation of gravity is far less suitable than a combination of Peters’ procedure for upward continuation and a finite differences method for downward continuation. It is shown also how Peters’ method can be substantially improved by considering only the closest values in the downward step of a continuation process.

scholarly journals Inversion Technique of Physical Parameters Based on Regularization Extension Depth Constraint

2019 ◽  
Vol 23 (4) ◽  
pp. 331-338
Author(s):  
Yang Wang ◽  
Jun Li ◽  
Xuben Wang ◽  
Xingxiang Jian
Keyword(s):  
Physical Property ◽  
Magnetic Anomalies ◽  
Downward Continuation ◽  
Resolving Power ◽  
Depth Of Field ◽  
Inversion Method ◽  
Physical Parameters ◽  
Field Source ◽  
Gravity And Magnetic ◽  
Downward Continuation Of Gravity

Through the regularization downward continuation of gravity and magnetic anomalies, the depth of the field source can be solved. However, due to the Gibbs effect, the horizontal resolving power of the field source is poor. In view of this, based on the depth of field source established by regularization downward continuation, this paper proposes a physical property parameter inversion method based on iterative continuation and anomaly separation, which can effectively improve the inversion accuracy of superimposed anomaly physical parameters, and provide a new idea for solving the physical parameters of superposition gravity and magnetic anomalies.

Numerical behaviour of the downward continuation of gravity anomalies

2011 ◽  
Vol 55 (2) ◽  
pp. 191-202 ◽  
Author(s):  
Mehdi Goli ◽  
Mehdi Najafi-Alamdari ◽  
Petr Vaníček
Keyword(s):  
Gravity Anomalies ◽  
Downward Continuation ◽  
Downward Continuation Of Gravity
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