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2-D Laterally constrained inversion (LCI) of resistivity dataNormal access

Authors: A. V. Christiansen, E. Auken, K. I. Sørensen and T. Smith
Event name: 8th EEGS-ES Meeting
Session: New Technologies and Research Trends
Publication date: 08 September 2002
DOI: 10.3997/2214-4609.201406196
Organisations: EEGS
Language: English
Info: Extended abstract, PDF ( 1.15Mb )
Price: € 20

2D laterally constrained inversion (2D LCI) is a new approach to interpretation of continuous resistivity data using an inversion scheme similar to that used for 1D LCI. The only difference is that the forward code in the inversion scheme is 2D. This enables a layered 2D inversion in sedimentary areas where the layering has been disturbed in a degree, that a 1D model is inadequate, but a layered model is still applicable. The layered 2D inversion provides a full analysis of the model, and can include a priori information just as in the 1D case. Preliminary results on synthetic data show that a layered 2D approach enables a more detailed description of 2D structures, which the 1D formulation can not resolve. The model complexity is controlled and balanced by the lateral constraints on depths and resistivities.

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