What do the green and red lines, and grey areas represent in the RAMMS profile plots?

This plot combines topographic information with simulation results to show how pressure (in this example) behaves along the avalanche track. Here’s how to interpret the different elements:

• Green Line – Topography:
  This represents the ground surface elevation along the avalanche path. It is scaled on the left-hand vertical axis, in meters (m). The x-axis shows the horizontal distance along this track.
• Grey Area – Pressure Values:
  The grey shaded area shows the calculated pressure (or any other simulation result) at each point along the path. These values start from zero and are scaled according to the right-hand vertical axis, in kPa. They are plotted vertically from the baseline (zero pressure) at each x-location.
• Red Line – Scaled Pressure Superimposed on Topography:
  The red line is a scaled representation of the pressure values from the grey area, but instead of starting from zero, it is superimposed on top of the green terrain line. This means that at each location, the red line starts at the elevation given by the green line, and rises by a scaled pressure value.

Note: The red line does not represent the pressure values 1:1. Some vertical scaling is applied for visualization purposes, to make the pressure distribution easier to interpret over varying terrain. Because the topography is constantly changing in elevation, the red line appears smoother than the grey shaded profile. Local oscillations in pressure (as seen in the grey area) may not be as visible in the red line due to this elevation-based scaling.