High-precision Downward Continuation of Potential Fields Algorithm Utilizing Adaptive Damping Coefficient of Generalized Minimal Residuals

2021 ◽  
Author(s):  
Zhi-Hou Zhang ◽  
Xiao-Long Liao ◽  
Ze-Yu Shi ◽  
Anthony R. Lowry ◽  
Yao Yu ◽  
...  
Keyword(s):  
High Precision ◽  
Downward Continuation ◽  
Damping Coefficient ◽  
Potential Fields

Normalized downward continuation of potential fields within the quasi-harmonic region

2011 ◽  
Vol 59 (6) ◽  
pp. 1087-1100 ◽  
Author(s):  
Maurizio Fedi ◽  
Giovanni Florio
Keyword(s):  
Downward Continuation ◽  
Potential Fields

scholarly journals Numerical Solutions of the Mean‐Value Theorem: New Methods for Downward Continuation of Potential Fields

2018 ◽  
Vol 45 (8) ◽  
pp. 3461-3470 ◽  
Author(s):  
Chong Zhang ◽  
Qingtian Lü ◽  
Jiayong Yan ◽  
Guang Qi
Keyword(s):  
Numerical Solutions ◽  
Mean Value ◽  
Downward Continuation ◽  
Potential Fields ◽  
Mean Value Theorem ◽  
New Methods ◽  
The Mean

A Regularization Method for Downward Continuation of Potential Fields

2011 ◽  
Vol 135-136 ◽  
pp. 132-139
Author(s):  
Tao Ma ◽  
Mei Ping Wu ◽  
Xiao Ping Hu ◽  
Guan Nan Li
Keyword(s):  
Regularization Method ◽  
Regularization Parameter ◽  
Downward Continuation ◽  
Potential Fields ◽  
Model Data ◽  
Regularization Theory ◽  
Inherent Limitation ◽  
Noise Data ◽  
Curve Method ◽  
Selection Of

Instability is the inherent limitation of downward continuation. Based on integral iteration idea and regularization theory, a regularization method is proposed for downward continuation of potential fields. We also present an L-curve method for the selection of regularization parameter. The improved method is tested on model data both with and without noise. The results show that the new method is much more stable than the iteration method, especially in dealing with low signal-to-noise data, and that it also has a large downward continuation distance.

Analysis on Convergence of Iteration Method for Potential Fields Downward Continuation and Research on Robust Downward Continuation Method

2009 ◽  
Vol 52 (2) ◽  
pp. 511-518 ◽  
Author(s):  
Hui ZHANG ◽  
Long-Wei CHEN ◽  
Zhi-Xin REN ◽  
Mei-Ping WU ◽  
Shi-Tu LUO ◽  
...  
Keyword(s):  
Iteration Method ◽  
Continuation Method ◽  
Downward Continuation ◽  
Potential Fields

High-precision Fourier forward modeling of potential fields

Geophysics ◽  
2014 ◽  
Vol 79 (5) ◽  
pp. G59-G68 ◽  
Author(s):  
Leyuan Wu ◽  
Gang Tian
Keyword(s):  
High Precision ◽  
Forward Modeling ◽  
Potential Fields
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