# Geopsy package [src]

Release: 2.9.0

What's new in current release? Read release notes.Inversion |
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dinver |
0.5.6 | Graphical environment to solve inversion problem using Neighborhood Algorithm or Monte-Carlo sampling. Various plugins are proposed here for solving common problems. You can define your own based on the template provided here below. | |

dinverdc |
1.4.1 | Inversion of dispersion curves (Rayleigh, Love, Phase and Group velocities, higher modes), autocorrelation curves, ellipticity curves, ellipticity peak and refraction travel times. Joint inversion are also possible. | |

dinverext |
0.2.1 | Plugin to run the forward computation in an external command. | |

dinvermatlab |
0.1.1 | Plugin to run the forward computation in Matlab. | |

swim |
0.1.0 | A graphical environment for the inversion of dispersion curves. Compared to dinver, the parameterization is fully automatic, scanning across all possible numbers of layers (2 to N). Just input a dispersion curve, you will get a collection of good models without making any difficult choice about the parameterization. Though this tool might look as a black box and much easier to use, a good knowledge of the inversion process is ABSOLUTELY required (under development). | |

Plotting |
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fastmap |
0.1.1 | Quick drawing of precise maps | |

figue |
1.5.3 | Figure edition. A graphical tool to merge various plots picked in all other geopsy softwares. Creating XY plot from command line is a breeze. It can also export to ps, pdf and bitmap image formats. | |

geopsyfigs |
0.2.1 | Plugin needed to export graphic signal from Geopsy to Figue. | |

gpcoord |
0.3.1 | Coordinate X,Y oprations: distance, azimuth, conversion from/to lat/long,... | |

gpcurve |
0.1.0 | Curve processing: resample, cut, interpolate, derivate, integrate,... Exactly the same actions as inside Dinver (module dinvedc) but through a command line. It can also sample an analytical expression to generate functions. | |

gpdistance |
0.1.2 | Calculates distances and azimuth between named points (aka stations). Uses a lookup table for station coordinates. Such lookup is difficult to implement with awk, the reason for writing it in C++. | |

gphistogram |
0.1.4 | Constucts interactive 2D histograms from any data set (couples X, Y). | |

gpsort |
0.2.2 | Sort curves stored in a text file (one after the other, various columns for X, Y,...). Usefull to re-order curves produced by gpspac and pipe them to figue in the correct order (play with option '-cpp'). | |

gptime |
0.1.0 | Converts time formats. | |

Signal Processing |
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geopsy |
2.9.1 | Graphical environment to view, organize and process signals. Most of the geophysical file formats are automatically recognized. Geopsy features can be extended through plugin tools. A selection is available here below. | |

geopsyarray |
2.5.1 | Plugin tool to extract dispersion/autocorrelation curves from arrays of stations. It includes processing for both passive and active recordings. Main contributions from M. Ohrnberger and A. Khoeler (University of Potsdam). | |

geopsydamping |
1.6.0 | Plugin tool to compute damping: based on random decrement for a single station measurement. Based on original Phd work of F. Dunant (LGIT, 2005, These_fdunand.pdf). | |

geopsyhv |
2.6.5 | Plugin tool to compute H/V spectral ratios from single station ambient vibrations. A sub-product from SESAME European project (2001-2004) with main contributions from J.-L. Chatelain (aka 'Gaillot'), B. Guillier and P.-Y. Bard (LGIT). | |

geopsynr |
0.3.0 | Plugin tool to increase (or to try to) the signal to noise ratio in active seismic. Basic and enhanced stacking technique. T0 adjustment (even to a fraction of sampling period). | |

geopsyptmotion |
1.1.9 | Plugin tool to plot particle motion from 3-component recordings (projection on all planes). | |

geopsyrefra |
1.1.1 | Plugin tool to pipe picked arrival times from Geopsy to Dinver. | |

geopsytfa |
1.1.6 | Plugin tool to compute a time-frequency analysis based on Morlet wavelet. Main contributions from M. Kristekova (University of Bratislava). | |

gpfksimulator |
0.2.1 | Educational tool for FK array response | |

gpsignal |
1.0.1 | Computation of custom cosine signals. Stacks of multiple frequencies and phases. Support for phase shifts between various station locations. | |

gptomoinfo |
0.1.1 | Extract files fsrc, fsta, fobs (for tomography codes) from a geopsy database or vice-versa | |

max2curve |
0.6.4 | Post processing tool for dispersion curves obtained from geopsyarray plugin tool. Mainly statistical analysis. | |

spac2disp |
0.3.1 | Post processing tools for SPAC method. Check consistency between autocorr curves computed for various rings. Based on original work from Wathelet et al. (2005). Support for 1C and 3C analysis. | |

structureratios |
0.5.2 | Plugin tool to compute spectral ratios for artificial structures (buildings, bridges,...). Main contributions from J.-L. Chatelain (aka 'Gaillot') and B. Guillier. | |

vslarray |
0.1.1 | Virtual Seedlink Array: emulate a real-time WARAN acquisition from a Geopsy database. Requires the installation of Seiscomp>=2.6 with mscan plugin | |

Utilities |
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gpreplace |
0.2.1 | Text replacement using regular expression. Support more features than grep or sed, it can handle patterns over several lines. | |

Waran |
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waran |
0.1.5 | Real-time analysis of ambient vibration arrays for WARAN aquisition system | |

warand |
0.1.1 | Core processing daemon (under development) | |

warangps |
0.1.4 | GPS Positioning for WARAN aquisition system. Replaces build_array for theoretical array response computation. | |

warangpsd |
0.1.1 | GPS daemon for WARAN acquisition system. | |

waranmon |
0.1.0 | Station monitoring tool for WARAN aquisition system | |

waranmond |
0.1.0 | Monitoring daemon for WARAN acquisition system. | |

waranrouted |
0.1.0 | IP routing daemon for WARAN acquisition system. | |

Wave tool |
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gpdc |
0.3.0 | Computation of theoretical dispersion curves. | |

gpdcmisfit |
0.2.3 | Recomputation of misfit. Did you generate a collection of models that you want to use as the starting population for slightly different dispersion curve? No problem, correct misfits and import it. | |

gpdcreport |
0.3.6 | Query tool for binary inversion report produced by dinverdc. With option '-pm' this tool is also usefull for all report types produced by dinver (e.g. dinvermatlab, dinverext or any custom inversion plugin). | |

gpdepths |
0.1.0 | Generates standard thicknesses (that follow a gemetrical progrssion) and corresponding 1D parameterizations. | |

gpec8 |
0.1.3 | Output EC8 soil category from a 1D wave model. Classification here is based only on Vs profiles. The official classification includes other parameters not covered by this tool. | |

gpell |
0.3.0 | Computation of theoretical ellipticity curves. | |

gpgroup2phase |
0.1.1 | Convert group velocity dispersion curves to phase velocity. Hmm! The solution is not unique. Ok this tool scans for various possibilities. | |

gplivemodel |
0.1.1 | Interactive computation of theoretical dispsersion curves, ellipticity curves,... through a graphical interface which lets you playing with cursors to adjust model parameters. | |

gpmodel2param |
0.2.3 | Transforms a 1D wave model into a ground parameterization that you can import inside Dinver (dinverdc plugin). | |

gpparam2model |
0.2.2 | Generate 1D wave models given a parameter set and a parameterization definition. | |

gppoisson |
1.0.1 | A memo for Poisson's ratio formula. Quick transform from Vp, Vs to nu and vice-versa. | |

gpprofile |
0.2.7 | Transform a 1D wave model into a plotable curve. Can also compute a variety of useful profiles from 1D wave models: impedance, Poisson's ration, travel time average (Vs30 or VsZ). | |

gprandom |
0.1.0 | Computes random values with ran2 (uniform probability, support for lot of computations). | |

gprefra |
0.1.1 | Computation of theoretical refraction travel times (1D model or tilted model). | |

gpsh |
0.1.3 | Computation of theoretical SH transfer function for a 1D wave model (Fortran implementation from P.-Y. Bard, LGIT). | |

gpspac |
0.3.0 | Computation of theoretical autocorrelation curves. | |

gptarget |
0.1.1 | Manipulation of dinver targets through command line. This tool can add, delete, or extract curves to or from .target files. | |

gpviewdcreport |
0.1.1 | Ploting tool for report files produced by dinverdc plugin. Provides the same output as inside Dinver graphical interface for automatic bash scripts. |