Before you manage to ask a question, we already have the answer.

Does your company provide assistance in obtaining compensation for mining damage?

No. We only handle monitoring of land subsidence. However, we provide information that may be useful in lawsuits regarding such matters.

What are terrain deformations?

These are emerging distortions of the earth’s surface – for example in the form of subsidence basins or landslides. Terrain deformation may be caused by both natural processes and human activities.

In which areas do deformations occur? Who is exposed to their effects?

The terrain deformation occurs mainly in mining areas, areas of tectonic movements or wetlands – although, in fact, each building can settle due to, for example, unstable ground or structural defects.

How are satellite methods (radar interferometry) different from standard geodetic measurement methods?

The main features distinguishing satellite research are: non-invasiveness, fast performance of the analysis and the ability to study large areas at many measurement points; thanks to these features, satellite technologies allow you to look at a given problem from a wider perspective.

What methods do you use in your research?

In the case of terrain deformation testing, we use InSAR satellite interferometric methods. InSAR (Interferometric Synthetic Aperture Radar) is a radar technique used in geodesy and remote sensing. It uses at least two radar images of the same area, made with a certain time interval (e.g. a month) between them. Information about vertical displacements of the imaged area is provided on their basis, with millimeter accuracy.

How big an area can be subjected to satellite monitoring?

The scope of monitoring may concern both individual parcels and buildings, and entire cities, municipalities or poviats.

What is the accuracy of satellite deformation measurement?

Accuracy can be up to several millimeters – depending on the method used (and the need/application).

How often can measurements be made using satellite technologies?

Satellite technologies have no limit to the frequency of measurements. As a default, SATIM offers taking measurements every 6 days; this is the frequency sufficient for most applications.

What time range of past data is covered in your analyses?

Satellite data is collected regularly from September 2015. If you are interested in obtaining analyses from earlier periods, please contact us.

How to order an analysis?

If you are interested in our services, please see the contact section: you can use the contact form or find our direct address, email and phone number.

Are there limitations of satellite methods?

Each research method has its limitations. In the case of satellite methods, measurement is only possible for coherent areas – i.e. areas that reflect radar waves in an unchanged manner over time. Therefore, interferometric techniques will not work, for example, in forested areas (because trees are constantly moving, which disturbs the reflections of the radar wave).

Is it worth giving up geodetic surveys for satellite research?

If it is necessary to conduct ground geodetic surveys, we suggest using satellite measurements for supplementary information.

Are satellite technologies a threat to privacy?

No. Commercial satellites have such a low spatial resolution that they are not able to recognize individual people. Analyses of data downloaded from commercial satellites can contribute to the analysis of a given aspect (e.g. urbanization, industry, ecology) at the level of activity of entire societies, but not of individuals.

Do satellite surveys affect health and/or the environment?

Satellite research is a completely non-invasive method. The electromagnetic waves emitted by the SAR system are within a harmless length range (similar to radio waves).

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