Mean velocity
Average vertical ground movement measured by Sentinel-1 radar during the observation period.

Values are expressed in mm/year:

• Negative values: ground subsidence (sinking)
• Positive values: uplift (rising)
• Values close to zero: stable areas

Velocity filter
The two sliders define the minimum and maximum mean velocity to display.

For example:

• -10 to +10 mm/year — show points within this range
• -10 to -2 mm/year — show subsiding points
• +2 to +10 mm/year — show uplifting points

Stable points
Stable points are defined here as points with an absolute mean velocity below 2 mm/year. Uncheck Show stable points to hide them.

Data fields available in the map

• Point ID
• Mean velocity
• Mean velocity standard deviation
• RMSE

Source
Copernicus European Ground Motion Service (EGMS), based on Sentinel-1 satellite radar observations.