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Examples from published papers #75
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Timelapse ERT and heat equation: |
Well, Arnaud used BERT for this very nice article but nothing with heat equation and not explicitly with pyGIMLi. So the paper should appear in the BERT repo under "papers using BERT" but not here where we want to exemply the variety of methods and techniques included in pyGIMLi, mainly by synthetic examples. |
Well, to be fair, the static heat equation was solved with pygimli in this article:
But I totally agree with @halbmy, that it is more a BERT usage and does not demonstrate a particular concept of pygimli. I think @Coastal0 just wanted to add to a general list of pygimli usages (thank you for that), which could (and should) coexist alongside and independent of a section on reproducible paper examples. |
A general list would be great. Particularly if there's a particular application someone's looking for which isn't covered by the specific examples. Going one step further: having the authors detail the exact use and implementation of BERT (e.g. modelling scripts, mesh generation ideology, data fit and inversion parameters) would be amazing for new users and less-experienced practitioners. (If they're amenable to it, of course. Demanding such a write-up is never going to happen.) |
This issue is more than five years old. Even though the overall aim of publishing both data and codes reproducibly according to the FAIR principles, I am not directly expecting examples from the open list and close the issue in favour of a new issue with more specific ideas. Some of the methods are currently not actively being used (e.g. genetic algorithms, NMR spectroscopy, borehole NMR, VRP) or are developed in specific repositories (permittivity (+SIP) spectroscopy, guided waves, SCCI). At least I am willing to stick to some from the list:
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Following the idea of reproducible science, we should give readers of published papers an information on how the specific results have been obtained, even if the results are slightly changing with software versions. This holds particularly for synthetic experiments (demonstrating both forward calculation, the noise and the inversion), but also for field data. Whereas the latter might be hold in a separete repository, the first are actually examples and could appear as such. Some are examples for programming a framework or should lead to frameworks and examples of using them.
I am just collecting pyGIMLi-related stuff that is not already covered by the BERT project (for which different documentation exists):
Fitting
Electromagnetic Soundings
(classic joint inversion could also go here)
Traveltime tomography
Joint inversion
Magnetic Resonance Sounding/Tomography
the problem is the missing kernel computation (before done with MRSmatlab, now with the external module COMET), maybe we store 1 or 2 kernels on pygimli.org (like mesh.geo)
Special subjects
References
Akca, I., Günther, T., Müller-Petke, M., Basokur, A. T. & Yaramanci, U. (2014): Joint parameter estimation from magnetic resonance and vertical electric soundings using a multi-objective genetic algorithm. Geophysical Prospecting, 62(2), 364-376, doi:10.1111/1365-2478.12082.
Costabel, S., Günther, T., 2014. Noninvasive Estimation of Water Retention Parameters by Observing the Capillary Fringe with Magnetic Resonance Sounding. Vadose Zone Journal 13, 14. doi:10.2136/vzj2013.09.0163.
Costabel, S., Günther, T., Dlugosch, R., Müller-Petke, M., 2016. Torus-nuclear magnetic resonance: Quasicontinuous airborne magnetic resonance profiling by using a helium-filled balloon. Geophysics 81, WB119–WB129. doi:10.1190/geo2015-0467.1.
Costabel, S., Siemon, B., Houben, G., Günther, T., 2017. Geophysical investigation of a freshwater lens on the island of Langeoog, Germany – Insights from combined HEM, TEM and MRS data. Journal of Applied Geophysics 136, 231–245. doi:10.1016/j.jappgeo.2016.11.007.
Dlugosch, R., Günther, T., Müller-Petke, M., Yaramanci, U., 2014. Two-dimensional distribution of relaxation time and water content from surface nuclear magnetic resonance. Near Surface Geophysics 12, 231–241. doi:10.3997/1873-0604.2013062.
Dlugosch, R., Günther, T., Lukàcs,T. & Müller-Petke, M. (2016): Localization and identification of thin oil layers using a slim-borehole nuclear magnetic resonance tool. Geophysics 81(4), W109-W118, doi:10.1190/geo2015-0464.1.
Günther, T., 2013. On Inversion of Frequency Domain Electromagnetic Data in Salt Water Problems - Sensitivity and Resolution, in: Ext. Abstr., 19th European Meeting of Environmental and Engineering Geophysics, Bochum, Germany. doi:10.3997/2214-4609.20131387.
Günther, T., Akca, I. & Müller-Petke, M. (2015): Evolutionary Algorithms for MRS Single and Joint Inversion. Ext. Abstr., MRS2015 - 6th International Workshop on Magnetic Resonance, Aarhus, Denmark.
Hupfer, S., Martin, T., Weller, A., Günther, T., Kuhn, K., Ngninjio, V.D.N., Noell, U., 2016. Polarization effects of unconsolidated sulphide-sand-mixtures. Journal of Applied Geophysics 135, 456–465. doi:10.1016/j.jappgeo.2015.12.003.
Igel, J., Günther, T. & Kuntzer, M. (2013): Ground-penetrating radar insight into a coastal aquifer: the freshwater lens of Borkum Island. - Hydrology and Earth System Sciences, 17, 519-531, doi:10.5194/hess-17-519-2013.
Igel, J., Stadler, S., Günther, T., 2016. High-resolution investigation of the capillary transition zone and its influence on GPR signatures, in: Ext. Abstr., SAGEEP, Denver, USA. doi:10.4133/SAGEEP.29-046.
Loewer, M., Igel, J., Wagner, N., 2016. Spectral Decomposition of Soil Electrical and Dielectric Losses and Prediction of In Situ GPR Performance. IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing 9, 212–230. doi:10.1109/jstars.2015.2424152.
Rücker, C., Günther, T., Wagner F.M. (2017): pyGIMLi: An open-source library for modelling and inversion in geophysics, Computers & Geosciences, in Press, doi:10.1016/j.cageo.2017.07.011.
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