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sep:courses:gp280 [2020/04/04 18:18]
rahul
sep:courses:gp280 [2020/04/04 20:55]
rahul
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 ==== Course Facts ==== ==== Course Facts ====
-| Lectures: | MWF 1:30-2:20 PM, Mitchell 452 |+| Lectures: | MWF 1:30-2:20 PM, via Zoom |
 | Instructor: | [[http://sepwww.stanford.edu/data/media/public/sep/biondo|Biondo Biondi]] | | Instructor: | [[http://sepwww.stanford.edu/data/media/public/sep/biondo|Biondo Biondi]] |
-| Teaching Assistant: | Huy Le +| Teaching Assistant: | [[http://web.stanford.edu/~rsarkar/|Rahul Sarkar]] 
-| TA Office Hours: | TBD, Mitchell 465. Send email to huyle@stanford.edu | +| TA Office Hours: | T-Th: 4:00 pm - 6:00 pm (via Zoom). Send email beforehand to rsarkar@stanford.edu | 
-| 3 units with labs, 2 units without; letter grade. || +| 3 units with labs, 2 units without; Grade only S/NC. || 
-computer-based homework assignments || +computer-based homework assignments || 
-| Schedule: | Schedule (PDF format) {{sep:courses:labs280:sched13.pdf| sched.pdf}}|+| Schedule: | [[http://sepwww.stanford.edu/gp280/Syllabus_20200401.pdf | schedule.pdf]]|
 | On the right: | Stack (after migration) of a 3-D data volume acquired over a salt body.|| | On the right: | Stack (after migration) of a 3-D data volume acquired over a salt body.||
  
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-==== Bulletin description ====+==== Course description ====
 Principles of imaging complex structures in the Earth subsurface by use of 3-D reflection seismology. The emphasis is on processing methodologies and algorithms, with examples of applications to field data. Topics include: acquisition geometries of land and marine 3-D seismic surveys, time vs. depth imaging, prestack Kirchhoff migration, dip moveout, zero-offset and prestack downward continuation, full separation and splitting, migration velocity analysis, velocity model building, imaging irregularly sampled and aliased data. Computational labs involve some programming. Principles of imaging complex structures in the Earth subsurface by use of 3-D reflection seismology. The emphasis is on processing methodologies and algorithms, with examples of applications to field data. Topics include: acquisition geometries of land and marine 3-D seismic surveys, time vs. depth imaging, prestack Kirchhoff migration, dip moveout, zero-offset and prestack downward continuation, full separation and splitting, migration velocity analysis, velocity model building, imaging irregularly sampled and aliased data. Computational labs involve some programming.
  
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 == Labs == == Labs ==
-[[gp280_labs|Go to GP280 labs page ]] 
  
-You will be given 6 hands-on homework assignments throughout the quarter. Although you are not expected to be an expert programmer, most of the labs require modification of Fortran90 code. If you run into trouble, refer to this list of Fortran90 [[http://www.nsc.liu.se/~boein/f77to90/|tutorial]], or ask the TA.+The labs will be distributed through Canvas.
  
 +You will be given 5 hands-on homework assignments throughout the quarter. Although you are not expected to be an expert programmer, most of the labs require modification of Fortran90 code. If you run into trouble, refer to this list of Fortran90 [[http://www.nsc.liu.se/~boein/f77to90/|tutorial]].
 +
 +[[gp280_labs| Go to GP280 labs (older years) ]]
  
 \\ \\
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 |Date | Topic | Notes | |Date | Topic | Notes |
-| 4/| Introduction | Introduction +| 4/| Introduction |  
-| 4/| 3D Geometries | chapter1.pdf |  +| 4/| 3D Geometries | (Chapter1) |  
-| 4/| Sep3D software  | (Appendix 1) |  +| 4/10 | Sep3D software  | (Appendix A) |  
-| 4/| Kirchhoff prestack migration  | (Chapter 2) | +| 4/13 | Kirchhoff prestack migration  | (Chapter 2) | 
-| 4/10 | Kirchhoff prestack migration (isotropy vs anisotropy) class handout +| 4/15 | Kirchhoff prestack migration (isotropy vs anisotropy) (Chapter 2 + Notes) 
-| 4/12 | NMO+DMO+AMO and prestack partial migration  | (Chapter 3) | +| 4/17 | NMO+DMO+AMO and prestack partial migration  | (Chapter 3) | 
-| 4/15 | Wavefield-continuation migration  | (Chapter 4) | +| 4/20 | Wavefield-continuation migration  | (Chapter 4) | 
-| 4/17 Numerical methods for wavefield-continuation - two way wave equation Notes +| 4/22 Common image gathers in offsets and angles (Chapter 6) 
-| 4/19 | Numerical methods for downward continuation - one way wave equation  | (Chapter 5) | +| 4/24 | Common image gathers in offsets and angles | (Chapter 6) | 
-| 4/22 | Numerical methods for downward continuation (isotropic and anisotropic)  | (Chapter 5 + Notes) | +| 4/27 | Numerical methods for wavefield-continuation – two-way wave equation  | (Notes) | 
-4/24 Wavefield-continuation migration as adjoint of wavefield modeling  | (Notes) | +| 4/29 | Numerical methods for wavefield continuation - one way wave equation  | (Chapter 5) | 
-4/26 | Common image gathers in offsets and angles | (Chapter 6) | +5/Definition of waveform inversion – migration as adjoint of linearized modeling  | (Notes) | 
-4/29 Gaussian Beam migration | see Chapter6.pdf +5/4 | Linearized waveform inversion – phase encoding in migration and inversion  | (Notes) | 
-| 5/1 | Plane-wave and phase encoding migration | (Chapter 7)  +| 5/6 | Imaging and aliasing  | (Chapter 8) | 
-| 5/3 | Plane-wave and phase encoding migration | (Chapter 7 +| 5/| Imaging and irregular geometries  | (Chapter 9) | 
-| 5/6 | 3D marine wave-equation migration methods  | (Chapter 7) | +| 5/11 | Imaging and irregular illumination + linearized Inversion  (Chapter 9 + Notes
-| 5/8 | Imaging and aliasing  | (Chapter 8) | +| 5/13 | Stacking velocity, Dix inversion, and traveltime tomography  | (Chapter 10) | 
-| 5/10 | Imaging and irregular geometries  | (Chapter 9)| +| 5/15 | Inversion of stacking velocities (Chapter 10) and time migration velocity analysis  | (Chapter 11) | 
-| 5/13 | Imaging and irregular illumination + linearized Inversion| Notes | +| 5/18 Vertical and tomographic velocity updating  | (Chapter 11) | 
-| 5/15 | Stacking velocity, Dix inversion, and traveltime tomography | (Chapter 10)  +| 5/20 Tomographic velocity updating  | (Chapter 11) | 
-| 5/17 | Inversion of stacking velocities (Chapter 10) and time migration velocity analysis  | (Chapter 11) | +| 5/22 | Tomographic velocity updating  | (Chapter 11) | 
-| 5/20 Residual moveout analysis and residual migration | (Chapter 11) | +| 5/25 | Memorial Day, No class | | 
-| 5/22 Vertical and tomographic velocity updating  | (Chapter 11) | +| 5/27 Full waveform inversion (FWI) | (Notes) | 
-| 5/24 | Tomographic velocity updating  | (Chapter 11) | +| 5/29 Full waveform inversion (FWI) | (Notes) | 
-| 5/27 | Memorial Day, No class | | +| 6/1 | Migration velocity analysis by wavefield-continuation | (Notes) | 
-| 5/29 Wave equation migration velocity analysis  | (Chapter 12) | +| 6/3 | Migration velocity analysis by wavefield-continuation | (Notes) | 
-| 5/31 Linearized inversion and least-squares reverse time migration  |(Notes) | +| 6/5 | Tomographic Full waveform inversion (TFWI) | (Notes
-| 6/3  Principles of full-waveform inversion and its limitation  | (notes) |+| 6/8 | Full waveform inversion with Model Extension (FWIME) | (Notes) | 
 +| 6/10 | Reviews and Q&A | |
  
 == Additional notes == == Additional notes ==
sep/courses/gp280.txt · Last modified: 2020/04/04 21:09 by rahul
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