Towards wave-equation ambient noise tomography of a landslide: The Harmalière case study

Giuseppe Provenzano, Grégory Biévre, Romain Brossier, Stéphane Garambois, Ludovic Métivier

International Meeting for Applied Geoscience and Energy (IMAGE)

... elevation, a pseudo-3D Vs model is built, and cleaned by means of a 3x3 median filter followed by Gaussian smoothing. AMBIENT NOISE WAVE-EQUATION...

Evidence for a Sea Level Lowstand Between 4500 and 2400 Years B.P. on the Southeast Coast of the United States: REPLY

Chester B. DePratter, James D. Howard

Journal of Sedimentary Research (SEPM)

... fluctuations on the Georgia coast fascinating. Smoothing out of sea-level curves, and the assumptions attendent to such smoothing, is probably one reason why...

A Critique of the "McLaren Method" for Defining Sediment Transport Paths: DISCUSSION

Shu Gao, Michael Collins

Journal of Sedimentary Research (SEPM)

..., by a smoothing operation (here, it has been done by averaging the vectors of the central point and its neighboring points), in order to obtain the "residual...

Effect of Diapirism on Sedimentation in Gulf of Mexico

Jack R. Walker , H. Robert Ensminger

AAPG Bulletin

... smoothing evidently occurred in the past but the active leveling agent now is sedimentation. The two spinelike features that have developed on the left...

Abstract: Q Estimation by a Match-filter Method; #90174 (2014)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

...-bed formation, which makes spectrum smoothing necessary. Generally, estimating Q from noisy data or surface reflection data needs further investigation...

Creating Singularity Order Attribute of Seismic Signals Using Continuous Wavelet Transform (CWT) for Stratigraphic Interpretation Tools

A.M. Ustad, M.S. Jaya, F.J. Herrman

Indonesian Petroleum Association

... (t )ψ ⎜ ⎟dt ⎝ a ⎠ { W f ,ψ β 6 4 ( de4) sharpening 48 4− 7 4 4 β (σ , t ) = σ β d β ( f4∗2 σ43t ) φ )( dt 1 } (4) (5) smoothing for β ∈ R , σ > 0...

HUMMOCKY COLLAPSED GLACIAL TOPOGRAPHY ("DEAD-ICE MORAINE") IN NORTH DAKOTA

John P. Bluemle

North Dakota Geological Society

... advanced, it abraded the surface, smoothing and planing it, much as sandpaper smooths wood. In other places though, as the ice passed...

Application of poststack image enhancement with dip-guided selective stacking in southern Gulf of Mexico

Janet Ravelo-Cervantes, Ricardo Francisco Castrejon-Martinez, Julio Cesar Hernandez-Villalobos, Raul Ysaccis, Said Hernandez-Jaramillo, Doan Saavedra-Castaneda

International Meeting for Applied Geoscience and Energy (IMAGE)

... and a smoothing boxcar spatial filter for the initial target Dip Field estimation. This filtering helps exclude the anomalous dipping events from the process...

Memorial: Hubert Gregory Schenck (1897-1960)

Konrad B. Krauskopf

AAPG Non-Technical and Memorials

... he set to work, smoothing relations between the Americans, the islanders, and the mainland Chinese, starting surveys of natural resources, improving...

Seismic Prospecting Review and Reflections on Future Events

L. W. Pfitzner

Petroleum Exploration Society of Australia (PESA)

... data in its raw form before automatic corrections, filtering and smoothing processes are applied. It is vital to our problems in Queens• land...

Unlocking the potential of narrow-azimuth streamer acquisition with extended FWI and least-square RTM: A case study for an Eastern Mediterranean field

Lei Zhuo, Guojian Shan, Brian Church, Lin Christianson, Jeff Bergeron, Yue Wang, Ao Cai, Mark Fan, Megan Stearman, Jeff Fabre

International Meeting for Applied Geoscience and Energy (IMAGE)

... uses both diving wave and reflection energy to update the velocity model, starting from the legacy velocity model with smoothing applied. Since...

Reveal The Velocity Anomalies in Complex Overburden and Enhanced The Imaging through Shallow Gas: A Case Study in SisiNubi Mahakam, Indonesia

Annas Astuti, Yohanes Kristomo, Bee Jik Lim, Ginanjar Satria, Natalia Anggriani

Indonesian Petroleum Association

.... Velocity clipping and smoothing was applied to eliminate the uncertain velocity anomalies to ensure that the current velocity update is fully data-driven...

Bathymetry of the Gulf and Peninsular Province of the Californias: Chapter 2: Part II. Geological and Geophysical Maps

J. Paul Dauphin, Gordon E. Ness

AAPG Special Volumes

... smoothing of the topography. NOMENCLATURE We tried to provide appropriate names for the more prominent morphological features of the region using...

Geological Mapping Using Remote Sensing and Magnetic Data (Geophysics Poster 15)

Nurdalila Binti Tazaruddin, Khiruddin Bin Abdullah, Nur Azimah Binti Hussin, Ashkan Mohajerin, Farahida Binti Suradi

Geological Society of Malaysia (GSM)

.... Then, it was followed by two-dimensional smoothing of the noise introduced by the extrapolation by using a low pass filter. One-dimensional profiles were extracted from...

Enhanced Resolution Seismic and New Subsurface Insights: Miocene Section, St. Mary Parish, Louisiana

V. Egorov, C. I. Puryear, R. Tharimela, J. Jurasin

GCAGS Transactions

... the frequency content. The structural noise cancelation uses dip-steering in order to eliminate noise along reflectors using a median smoothing filter...

-- no title --

AAPG Special Volumes

... is an interpolation method from geostatistics. Kriging is a best linear unbiased estimator (BLUE). Kriging interpolation has a smoothing effect as the kriging...

Sedimentation Pattern of a Rift-filling Unit, Tesuque Formation (Miocene), Espanola Basin, Rio Grande Rift, New Mexico: DISCUSSION

Gary A. Smith, Peter A. Battuello

Journal of Sedimentary Research (SEPM)

... were defined is in order and that the extent of data smoothing should be indicated. The number and thickness of megasequences aside, we do not see how...

The Future Petroleum Geologist: GEOLOGIC NOTES

Robert R. Berg

AAPG Bulletin

.... As a consequence, exploration will benefit. Then what about the future? The AAPG membership in 2000 will show another change, a smoothing...

Identification of magnetic enhancement at hydrocarbon-fluid contacts

Sijibomioluwa A. Badejo, Adrian R. Muxworthy, Alastair Fraser, Graham R. Stevenson, Xiang Zhao, and Michael Jackson

AAPG Bulletin

..., and (O) FORC diagram suggests the presence of SP grains. The VARIFORC parameters (Egli, 2013) for FORC smoothing are sc,0 = 1.2, sc,1 = 3, sb,0 = 3...

Structure-and-Amplitude-Preserving Multi-Channel Deconvolution

Search and Discovery.com

... information about the reflectivity model. In particular, we introduce a smoothing constraint across traces via FX-filtering. Once we have computed...

Abstract: Making FX Interpolation More Robust by Spectrum-guided Reconstruction; #90171 (2013)

Mostafa Naghizadeh and Mauricio Sacchi

Search and Discovery.com

... on the estimation of the prediction filter, the location of peaks can be widened to several samples around the identified peak value via smoothing. The latter...

Abstract: A Tour of High Resolution Transforms; #90171 (2013)

Mauricio D. Sacchi

Search and Discovery.com

...-emphasizes sparsity via a smoothing strategy. Interpolation and SNR enhancement with Curvelet Frames: The operator L is the adjoint of the Curvelet Transform...

Abstract: Microseismic Event Locations for Deviated Boreholes; #90187 (2014)

Amna Feroz and Mirko van der Baan

Search and Discovery.com

... by smoothing and blocking of sonic log, also calibrated with the available perforation shots. Once a satisfactory model has been obtained, a lookup table...

Abstracts: Full Waveform Inversion with Total Variation Regularization; #90173 (2015)

Amsalu Y. Anagaw, Mauricio D. Sacchi

Search and Discovery.com

... to the original model by smoothing the original velocity model with Hanning window. The inversion is then carried out by employing the Total variation...

Abstracts: Determining Microseismic Event Locations by Semblance-weighted Stacking; #90173 (2015)

David W. Eaton, Jubran Akram, Andy St-Onge, and Farshid Forouhideh

Search and Discovery.com

... is generally constructed by smoothing and blocking available sonic-log data (P- and S-wave). Once a satisfactory velocity model has been obtained...