Madagascar School at the University of Houston 2017

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Madagascar School at the University of Houston 2017



April 21-22, 2017

Hosting Organization

University of Houston


University of Houston
Room F39

Houston, Texas

Location and directions in Google Maps

The suggested entrance is located Cullen Avenue
Enter there and take the elevator to floor


Draft program
Day 1 Friday, April 21st
9:00-9:15 Welcome (Wenyuan Zhang)

Madagascar provides a complete environment for organizing one's research, from new software development to running computational experiments to publishing the experimental results in papers and reports and archiving them for future usage. This shared environment enables an efficient exchange of research results with colleagues and sponsors. In this module, you will learn how to take the full advantage of the Madagascar environment to enhance research productivity and research collaboration.

Madagascar tutorial

13:00-16:00 Seismic modeling, imaging, and full waveform inversion (Jeffrey Shragge and Pengliang Yang)

A key part of using Madagascar is to be able to develop reproducible computational work flows. This section will continue to improve your skills in developing work flows using SConstruct files by completing exercises involving 2D acoustic and elastic modelling. After completing these task you will cover a number of key mathematical and physical basics of forward numerical simulation and inversion.

Modeling and FWI tutorial
Modeling and FWI slides

Day 2 Tuesday, June 7th
9:00-12:00 Seismic field data processing (Kelly Regimbal)

Madagascar offers the advantage of providing flexibility when generating reproducible seismic data processing workflows. This tutorial will introduce you to a 2D seismic data processing workflow using the Nankai dataset. The key goal of the exercise in this section is to use creativity to modify different aspects of the workflow in order to achieve a better understanding of processing seismic data using Madagascar and also improving the final migration results.

Data processing tutorial
Data processing slides

13:00-14:30 Marchenko imaging (Constantin Mildner and Filippo Broggini)

In Marchenko imaging, wavefields are retrieved at specified focal points in the subsurface through an iterative scheme derived from the multidimensional Marchenko equation. The method requires seismic-reflection data at the earth’s surface (after free-surface multiple elimination) and an estimate of the direct wavefield from the surface to each focal point, which can be computed, for instance, in a macrovelocity model.

Example SConstruct

14:30-16:00 Students' experiences with Madagascar, reproducible documents, wrap up.