18 years of deformation in one image
Historical deformation mapping
The first step in addressing stability of infrastructure is often to visualize its deformation as far back as possible. This fact-finding mission shows if the infrastructure moves and by how much, at which rates and in which direction. This will give a first overview of the dynamic events underlying deformation.
For most geographical areas, we can access historical satellite data that can go back as far as 1992 – enabling us to give a long term perspective on the deformation processes at work.
Eay-to-use interface
The QuickScan product has a graphical user interface; every measurement point has a color representing its historic average linear annual deformation rate. Locations that have high deformation rates are shown as red points, while relatively stable locations are shown as green. By clicking on the point, the user can pull up the relevant time series over the whole preceding period as well and quantify the rate of change.
In many locations, this technique enables retrospective failure analysis; which can be hard, expensive or downright impossible to achieve in any other way.
Deformation timeline example
Typical time series obtained from a QuickScan from 2003-2010.
Configurable data acquisition
As with all of our products, we can determine which satellite mission will provide the optimum set of data. We use the combination of data that best characterizes the stress acting on the infrastructure under management and that will capture the most likely failure mode.
Results
Hansje Brinker will report the results of the QuickScan as follows:- Database of PSI results, including time series for each individual deformation point (format of your choice, for example shape-file)
- Processing report, including figures, characterization and background.