deletions | additions       diff --git a/Becancour like.tex b/Becancour like.tex  index dc62cd0..86f0caa 100644  --- a/Becancour like.tex  +++ b/Becancour like.tex 
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\subsubsection{Becancour like scenario}  In each corridor stack, black traces refer to the baseline survey. Red traces refer to CO$_2$ injected scenario. A travel-time delay due to the CO$_2$ injection is well detected starting at 500 ms. The effect of CO$_2$ is mainly observed by a travel-time delay. Other authors reported similar obervations \citep{Yang2014,Arts2004}.  We suggest that at the basement reflector we have can also notice  an AVO anomaly with an amplitude increase with the offset. offset at the basement reflector. Since the saturation and the CO$_2$ plume shape doesn't evolve too much in the time-lapse modeling, we do not have significant variation between repeated monitoring.  As demonstrated in Fig \ref{fig:fig8}b and \ref{fig:fig8}c the difference after CO$_2$ injection are caused primarely by the slight shifts between the two images. The shift starts at 0.85 s for the model with CO$_2$ on the Cairnside layer and about 0.1 s later for the model with CO$_2$ in the Covey Hill layer. In the model with CO$_2$ in Cairnside layers (red in Fig \ref{fig:fig8}b), we see a strong increase in the reflection strenght from the Covey Hill formation. \\  The effect of CO$_2$ is mainly observed by a travel-time delay. Other authors reported similar obervations \citep{Yang2014,Arts2004}