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Earth Resources Laboratory Annual Report 2013 Table of Contents 

Unknown author (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
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3D Weak-Dispersion Reverse-Time Migration with a StereoModeling Method 

Li, Jingshuang; Fehler, Michael; Yang, Dinghui; Huang, Xueyuan (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
The finite difference method has been widely used in seismic modeling and reverse time migration. However, it generally has two issues: large computational cost and numerical dispersion. Recently, a nearly-analytic discrete ...
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Numerical modeling of elastic wave scattering by near-surface heterogeneities 

Al Muhaidib, Abdulaziz; Toksoz, M. Nafi (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
A perturbation method for elastic waves and numerical forward modeling are used to calculate the effects of seismic wave scattering from arbitrary shape shallow subsurface heterogeneities. Wave propagation is simulated ...
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The failure mode of correlation focusing for model velocity estimation 

Baek, Hyoungsu; Calandra, Henri; Demanet, Laurent (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
We analyze the correlation focusing objective functional introduced by van Leeuwen and Mulder to avoid the cycle-skipping problem in full waveform inversion. While some encouraging numerical experiments were reported in ...
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Using SVD for improved interferometric Green's function retrieval 

Melo, Gabriela; Malcolm, Alison E.; Mikesell, Dylan; van Wijk, Kasper (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
Seismic interferometry (SI) is a technique used to estimate the Green’s function (GF) between two receiver locations, as if there were a source at one of the receiver locations. However, in many applications, the requirements ...
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Real-time ensemble control with reduced-order modeling 

Lin, Binghuai; McLaughlin, Dennis (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
The control of spatially distributed systems is often complicated by significant uncertainty about system inputs, both time-varying exogenous inputs and time-invariant parameters. Spatial variations of uncertain parameters ...
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Analysis of location uncertainty for a microearthquake cluster: A case study 

Melo, Gabriela; Malcolm, Alison E.; Poliannikov, Oleg V.; Fehler, Michael (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
In many reservoirs, an increase in permeability and conductivity is achieved by hydraulic fracturing/stimulations which open cracks and fractures that then act as pathways for fluids to navigate in the subsurface. Mapping, ...
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Joint microseismic event location with uncertain velocity 

Poliannikov, Oleg V.; Prange, Michael; Malcolm, Alison E.; Djikpesse, Hugues (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
We study the problem of the joint location of seismic events using an array of receivers. We show that locating multiple seismic events simultaneously is advantageous compared to the more traditional approaches of locating ...
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Converted Phase Elastic Migration Velocity Analysis 

Shabelansky, Andrey Hanan; Malcolm, Alison E.; Fehler, Michael; Shang, Xuefeng; Rodi, William L. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
Multi-component elastic seismic data collected at large offsets have the potential to be used in seismic imaging and velocity analysis. In this study, we present an approach for converted-phase elastic-transmission migration ...
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High-dimensional wave atoms and compression of seismic datasets 

Leinonen, Matti; Hewett, Russell J.; Zhang, Xiangxiong; Ying, Lexing; Demanet, Laurent (Massachusetts Institute of Technology. Earth Resources Laboratory, 2013)
Wave atoms are a low-redundancy alternative to curvelets, suitable for high-dimensional seismic data processing. This abstract extends the wave atom orthobasis construction to 3D, 4D, and 5D Cartesian arrays, and parallelizes ...
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AuthorFehler, Michael (11)Malcolm, Alison E. (9)Fang, Xinding (5)Demanet, Laurent (4)Toksoz, M. Nafi (4)Hewett, Russell J. (3)McLaughlin, Dennis (3)Poliannikov, Oleg V. (3)Baek, Hyoungsu (2)Calandra, Henri (2)... View MoreSubjectInversion (9)Modeling (8)Microseismic (6)Fractures (5)Scattering (4)FWI (3)Imaging (3)Migration (3)Interferometry (2)Fluid flow (1)... View MoreDate Issued
2013 (27)
Has File(s)Yes (27)

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