|
|
- 2018
利用滑动窗口的多项式拟合算法进行重力位场区域-剩余异常分离
|
Abstract:
地表观测的重力位场是地形质量、浅部地质结构产生的剩余重力异常和深部地质构造产生的区域重力异常的叠加效应。基于尺寸可变的滑动窗口的二维低阶多项式拟合算法和格网距离（到中心点）倒数的定权规则在空间域对地面观测的重力位场数据进行了不同深度层的区域-剩余异常分离。这克服了常规算法仅在水平方向上区分不同异常空间分布及垂直方向上定性分离的缺陷。并利用构建的模型重力数据和实测重力位场数据分别进行解算，数值结果验证了该方法的有效性
| [1] | Griffin W R. Residual Gravity in Theory and Practice[J].Geophysics, 1949, 14(1):39-56 |
| [2] | Yang Wencai, Hou Zunze, Yu Changqing. 3D Crustal Density Structure of West Yunnan and Its Tectonic Implications[J].Chinese J Geophys, 2015, 58(11):3902-3916(杨文采,侯遵泽,于常青.滇西地壳三维密度结构及其大地构造含义[J]. 地球物理学报, 2015, 58(11):3902-3916) |
| [3] | Liu Jinzhao, Liu Lintao, Liang Xinghui, et al. 3D Density Inversion of Gravity Gradient Data Using the Extrapolated Tikhonov Regularization[J].Applied Geophysics, 2015, 12(2):137-146 |
| [4] | Wang Bingzhu, Xu Shizhe, Liu Baohua, et al., An Example of Aeromagnetic Anomaly Separation Using Multi-interpolation Division[J].OGP, 1997, 32(3):431-438(汪炳柱,徐世浙,刘保华,等. 多次插值切割法分场的一个实例[J]. 石油地球物理勘探,1997, 32(3):431-438) |
| [5] | Al-Zoubi A, Eppelbaum L, Abueladas A, et al. Removing Regional Trends in Microgravity in Complex Environments:Testing on 3D Model and Field Investigations in the Eastern Dead Sea Coast (Jordan)[J]. International Journal of Geophysics, 2013, 2013(1):1-13 |
| [6] | Martínez-Moreno F J, Galindo-Zaldívar J, Pedrera A, et al. Regional and Residual Anomaly Separation in Microgravity Maps for Cave Detection:The Case Study of Gruta de Las Maravillas (SW Spain)[J]. Journal of Applied Geophysics, 2015,114:1-11 |
| [7] | Martín A, Nú？ez M A, Gili J A, et al. A Compari-son of Robust Polynomial Fitting, Global Geopotential Model and Spectral Analysis for Regional-residual Gravity Field Separation in the Do？ana National Park (Spain)[J].Journal of Applied Geophysics, 2011, 75(2):327-337 |
| [8] | Xu Shizhe, Yu Hailong, Li Haixia,et al. The Inversion of Apparent Density Based on the Separation and Continuation of Potential Field[J]. Chinese J Geophys, 2009, 52(6):1592-1598(徐世浙,余海龙,李海侠,等. 基于位场分离与延拓的视密度反演[J]. 地球物理学报, 2009, 52(6):1592-1598) |
| [9] | Nabighian M N, Ander M E, Grauch V J S, et al, Historical Development of the Gravity Method in Exploration[J].Geophysics, 2005, 70(6):63ND-89ND |
| [10] | Pawlowski R S, Hansen R O. Gravity Anomaly Separation by Wiener Filtering[J].Geophysics, 1990, 55(5):539-548 |
