From modeling to full waveform inversion: A hands-on tour using Madagascar

Some of the most useful commands

Plotting the figures

sfgraph

create line plots, or scatter plots

sfgrey

create raster plots or 2D image plots

sfgrey3

create 3D image plots of panels (or slices) of a 3D cube

sfwiggle

plot data with wiggly traces

Look up data attributes and data processing:

sfin

check the layout of the data, number of points in each dimension, sampling intervals in each axis, labels, units, ...

sfattr

check statistical properties: covariable, rms, mean, minimum and maximum etc

sfwindow

window or select part of data

sfadd

add two dataset with scaling factors

sfmath

mathematical operations for the data: log, sin, tan, exp, ...

sfsmooth

smoothing the data using triangular window (repeating many time to approximate Gaussian)

Image format: Vplot

• suffix '.vpl', vectorized image $\rightarrow$ scaling without loss of quality
• convert to be pdf/eps/png/jpeg/tiff/mpeg/...
• how: vpconvert format=pdf fig.vpl

From modeling to full waveform inversion: A hands-on tour using Madagascar