# Topics ¶

The User Guide has examples focusing on the  earthsim  code, whereas these notebooks show case studies and in-depth examples of specific workflows and research topics. So far, the examples mostly use the GSSHA simulator, but other examples using AdH are being developed and will be added here when they are ready.

EarthSim is an open-source project, but note that the GSSHA simulator used in these examples (and included in the earthsim environment) is freely available but closed source.

• GrabCut Demo An example for using the GrabCut algorithm with OpenCV to extract a coastline from a satellite image
• GSSHA Parameter Sweep Running a parameter sweep of a parameterized GSSHA Workflow.