It can be difficult to get a feel for the overall quality of 2D acquisition by only looking at selected shot records. By plotting the calculated RMS value of each trace for each shot, we can generate a pseudo areal display that will show stations that remain noisy over time or shots that have a significant number of channels noisy. This aids with evaluation of crew performance.
This is not exactly a new idea, I first saw it many years ago in Saudi done by a quite clever CGG processing guy who had his version running in real time in the recorder working off ADS records. And the same thing has been done by others since.
2DN requires that you scan the seismic data files and produce a text file of SP, RP and RMS for each trace in each file. I may include this function in future versions if there is some interest, but based on the interest shown in my other programs that is unlikely.
With 2DN, you can load a project’s worth of data and query by Line, then day or SP range.
Interpretation is fairly obvious to anyone in the business – vertical stripes indicate a station that was noisy for a long period, horizontal stripes are where a section of the spread was noisy and sloping stipes are moving noise. You can mouse over to determine the affected SP/RP.
More details here:
https://seismatters.com/2DN.html