Contrast Between 2D and 3D Inversion Based on 2D High-density Resistivity Data
Hits:
Release time:2020-08-08 Affiliation of Author(s):中南大学地球科学与信息物理学院 Teaching and Research Group:中南大学应用地球物理系 Journal:5nd International Conference on Environmental and Engineering Geophysics Key Words:high-density resistivity method；finite element method；forward simulation；least square inversion；2D inversion；3D inversion；apparent resistivity Abstract:The 2D data processing adopted by the high-density resistivity method regards the geological structures as two degrees, which makes the results of the 2D data inversion only an approximate interpretation; the accuracy and effect can not meet the precise requirement of the inversion. Two typical models of the geological bodies were designed, and forward calculation was carried out using finite element method. The forward-modeled profiles were obtained. 1% Gaussian random error was added in the forward models and then 2D and 3D inversions using a high-density resistivity method were undertaken to realistically simulate field data and analyze the sensitivity of the 2D and 3D inversion algorithms to noise. Contrast between the 2D and 3D inversion results of least squares inversion shows that two inversion results of high-density resistivity method all can basically reflect the spatial position of an anomalous body. However, the 3D inversion can more effectively eliminate the influence of interference from Gaussian random error and better reflect the distribution of resistivity in the anomalous bodies. Overall, the 3D inversion was better than 2D inversion in terms of embodying anomalous body positions, morphology and resistivity properties. Co-author:肖波, 戴前伟 First Author:冯德山 Indexed by:Applied Research Discipline:地质资源与地质工程 Page Number:125-131 Translation or Not:no Date of Publication:2012-06-15 -
|
 Zip Code:c576f0c85848a14d10428d1b79269fc7d68bde9ba6ecb95648b168a03671c3821c778c2bedf0cae5d03c95a065c3a5efa4243241acb9eb6089885db6f9f3fa7f5b7491eb5af48e7ab43d253e29e0fa6991b0af260ac98903cc7fbca150cb2fc86cb6bd41d95f78a263ba3d6f6aa504ee56cdd8693f2e6f13b576940cee3633de Fax:17e6c064ee5cb174c4e944a660b3f619e9f93b408e0b240bede9c3e19ecc6800e4984f519ecfa91ba7ae06ae3e4625e03227d05cc2002730892a846aa57724d5726b7e7fb08181480e647262115fb634c6f5545aacd74cff5c45368c07d0490d7716bdcb5446496de61a5a7d10de5694997f1bfa8ba6d200f4ccaeebd9c2fed0 Postal Address:71db3ba9b84fb74a51e15316e4d4d5158f917d9d8fb5faf012f84ab1172b26e0f5c378c5cecdf29537ce2e6e402924d646da474ef15c20b32a3bd5b6bc9c7bd827f454623be9d12b5256f6321a92104010a6def1c290e33f0d28cb4f37613a9225795c4442d6b34af06bd692cac4ab416f451ae02c3f9b5ffa4b7b654b4a5c82 Office Phone:17e6c064ee5cb174c4e944a660b3f619e9f93b408e0b240bede9c3e19ecc6800e4984f519ecfa91ba7ae06ae3e4625e03227d05cc2002730892a846aa57724d5726b7e7fb08181480e647262115fb634c6f5545aacd74cff5c45368c07d0490d7716bdcb5446496de61a5a7d10de5694997f1bfa8ba6d200f4ccaeebd9c2fed0 Mobile:5137d55315e3e35e4f835eb43d34a4aa36b1b453d3da1bb8194ee0525d17fd8ebb55be93064fddd451e8daaed692f6a07972105dcad24687d241e73e52fc23bfeaa9ae244a27b9bbbf3bc7746d1ebf576a528b5fd3ab2e715ccd88d1cee492655bae47acb16b70d23c481ee1f499873c9165a8278a451959797a05929c450c7c Email:b679856bb3c424c1b1f7ff32fc78c0465f82c20323019d2bcbaf0fd567213eff4f807ae6c53d852fff6b4557cf7dcfb6d93900b2fbb86f99bad419376cc49941a87bc49d00f086bfbf95d3a9f2040f260a5dea2e34b25479a54e2d46c07826eed4d04d17b119265ef06d58cb47f1322d0f7ab5847b2d282fa530dd5e5d029335
|
MOBILE Version