SmartTomo’s ability to process complex refraction tomographic profiles is tested using data computed on synthetic velocity models. The synthetic velocity model represents a geologic model sketched with the characteristics to be tested. The synthetic model is used to simulate a refraction seismic acquisition by recording arrival times at the geophone location. The recorded data will be used to perform tomographic processing in order to compare the tomographic result with the synthetic geological model (groundtruth).
We are pleased to announce the release of smartTomo 2020.1 which includes the bug fixes released so far as individual updates of the previous version. This version does not introduce new features but more stability of use than ever before
The SmartTomo 2020.0 version introduces new features and numerous bug fixes compared to previous versions. From this version SmartTomo becomes a full-featured software for refraction seismics by integrating both the tomographic processing with GRM method seismic refraction. Now within the software it is possible to perform refraction processing and display the refraction profile either separate or overlaid with the tomographic processing.
In SmartTomo we give a lot of importance to the ability to display results without the need to use external software. The visualization of the tomographic profile is the means by which specialists interpret the results and therefore it is essential that it is versatile and clear. Version 2020.0 introduces the possibility to choose the size of the geophones display on the profile. From this version it is possible to compose on screen the view to be exported and save it directly on file obtaining a true copy of the screen. This also allows the creation of focused details of the profile.
In addition SmartTomo from version 2020.0:
imports files in seg2, sgy and SU formats;
allows you to choose the density of the labels on the isolines avoiding overlapping;
export profile screenshots to get enlarged details of the tomographic section.
This version of smartTomo has been tested using a synthetic dataset available on the detectation.com/ forum. It is a 3-layers profile with a slope in the deepest refractor.
The dataset has been analyzed with smartTomo obtaining the following profile:
In this work, seismic refraction tomography (SRT) was performed to investigate the characteristics of the subsoil and to investigate the evidence of the presence of a tunnel used for the carrying of water.
The survey was carried out using 24 vertical geophones and performing a high number of vertical energizations both inside and outside the line, in order to have a good coverage by seismic rays throughout the section.
Following the rupture of an water pipeline, a landslide movement occurred in an area classified as highly susceptible to collapse. The event dislocated a retaining wall and created tension cracks in the ground. In order to define the geometry of the materials involved in the movement, a seismic survey was carried out using the technique of seismic refraction tomography and the MASW.
The smartTomo demo version allows the users to perform tomographic processing on a preloaded dataset. The dataset has been recorded on a landfill site where the limestone rock substrate deepens from right to left. The data has acquired by a 16-bit, 16-channel seismograph made by SARA Electronic Instruments . Six energisations were carried out which allowed to identify the geometry of the filling materials.
This update covers different aspects of the software. Automatic picking of the first breaks now implements a procedure to suppress the first “crazy” arrivals. Only those that fall within a realistic range of seismic velocity are kept. Manual picking can now be done by dragging the mouse. The user can select three different modes of smoothing the results, that allow to give more or less emphasis to the local characteristics. Axes have been added on all four sides of the tomographic profile for better readability of results. From this version are available new palettes designed to be homogeneous to perception and accessible to colorblind people.
March 2019 – smartTomo 2019.1
This version introduces signal filtering. The user can choose whether to process the signal manually or to rely on NoRe, the automatic tool of Noise Reduction. Further improvements contained in this release are the saving of custom pallets and isolines and the ability to save the configurations of the geometry of the seismic lines.
October 2018 – smartTomo 2019.0
This version was presented at GeoFluid by our partner Geostudi Astier Srl. Compared to the first version, the whole part of the display of results has been rewritten: starting from this release users can display the isolines of speed and the color palette is customizable.
April 2018 – smartTomo 2018.0
It’s the first commercial version of smartTomo. It implements the basic functions of the topographic problem solver. The algorithm is already parallel and takes full advantage of the potential of multicore systems.