Uncertainty analysis of gravity data inversion
作者：SHI Jianan,MA Guoqing
摘要：The traditional gravity modelling methods fail to deal with ambiguity zones.These zones are likely to be associated with uncertain boundaries.Source boundaries can be divided into“hard”and“soft”types.“Hard”boundary stands for distinguished margin of discontinuity of source distributions.Traditional modelling method is based on this type of boundary.Uncertain boundaries of ambiguity zones belong to“soft”boundary.The authors put forward the uncertainty analysis because lots of uncertainty factors need to be taken into consideration.Any powerful system designed to interpret gravity data for a real source distribution must be able to deal with uncertain information.Uncertainty analysis(UA)is a useful tool to estimate the ambiguity of the data interpretation.It is often applied in conjunction with a specific modelling or inversion method.In this study,we use an iterative inversion and its results are evaluated using uncertainty analysis and proved to be effective.
发文机构：College of Geo-Exploration Science and Technology
关键词：AMBIGUITYZONESNON-UNIQUENESSerrorBARSITERATIONINVERSIONdatafitting
分类号： P[天文地球]
- Application of isolation forest to extract multivariate anomalies from geochemical exploration data
- Zircon U-Pb geochronology and geochemistry of granite in Huoluotai area of northern Great Hinggan Range
- Geochronology and geochemistry of Baicaogou tuff in Yanji,NE China and its tectonic implications for Early Cretaceous
- Application of high-density resistivity method for assessing construction safety of Shimodong tunnel in Helong City of Jilin Province
- Computation of waves scattered by inhomogeneous velocity gradient using generalized Born approximation
- Combination of structure tensor and tilt angle in the edge detection of potential field data
- Method for predicting cuttings transport using artificial neural networks in foam drilling
- Logging interpretation method for reservoirs with complex pore structure in Mesozoic-Cenozoic faulted basin around Daqing exploration area
- Structure analysis of shale and prediction of shear wave velocity based on petrophysical model and neural network
- Geochronology,geochemistry and geological significance of Early Cretaceous volcanic rocks from Niangniangshan Formation,Ningwu Basin,middle and lower reaches of the Yangtze River