498 results

The Waveform Suite is now developed as part of the geoscience community codes, linked below.

MATLAB Toolbox for Seismic Data Analysis

This is the study of a SDOF subjected to a seismic input

Dynamic response of a building subject to a seismic input

The script analizes the dynamic response of a linear system subject to a seismic input through the Response History Analysis (RHA) and the Response Spectrum Analysis (RSA).After the calculations

OSGPUP

version 1.0.0

by Mohammad Heriyanto

OSGPUP: An open-source library for geophysical data processing and interpretation based on C++, Perl, Octave and Python.

DNN ELM SAE DAE

version 1.0.0

by hilal nuha

Deep Neural Networks, Stacked Auto Encoder, and Deep Auto Encoder with Extreme Learning Machine

Please citeNuha, Hilal H., Adil Balghonaim, Bo Liu, Mohamed Mohandes, Mohamed Deriche, and Faramarz Fekri. "Deep Neural Networks with Extreme Learning Machine for Seismic Data Compression." Arabian

This method accurately approximates full-offset ray-traced traveltimes in a CMP acquisition, using only two rays.

PSHA: Probabilistic seismic hazard analysis for circular seismic sources

This MATLAB function conducts a simple Probabilistic Seismic Hazard Analysis by making use of the truncated Gutenberg-Richter recurrence model (Baker, 2013). It considers only a uniform circular

VPSHA: Vector-valued probabilistic seismic hazard analysis for circular seismic sources

This MATLAB function conducts a vector-valued probabilistic seismic hazard analysis (VPSHA) by making use of the truncated Gutenberg-Richter recurrence model. It considers only a uniform circular

This function generates elastic response spectrum for seismic design of buildings and bridges.

GAOT-ECM: Extension For Control And Modeling - Seismic Vibration Case Study with MR Damper

industrial plant identification and PID controller design.This file contains the Seismic Vibration Case Study. For other examples, please consult the GAOT-ECM: Extension For Control And Modeling main file.This

GISMO - a framework for scientific research in seismology/infrasound

Project website: https://geoscience-community-codes.github.io/GISMOGISMO is designed to allow easy retrieval of seismic waveform data, event catalogs and station metadata from a variety of data

Seismic and GPS processing bits and pieces

Seismic processing bits and pieces. Note that you may need to hunt for dependencies in some of the other slepian_alpha, slepian_bravo, etc, packages.

Komputasi Geofisika, Universitas Pertamina

: https://github.com/Metkom/OSGPUP/edit/master/seismic%20processing/seismic_visualisasi.mCite: Virginia, Intang Pinki; Arahman, Nanditha; Laurens, Kinta Rahma Aulika; Pertiwi, Tiaraningtias Bagus; Suryani, Adelia (2018): Visualisasi Data Seismik 2 Dimensi. figshare

This script aims to offer the Shock Response Spectrum of an earthquake's acceleration time history

Irvine in 2006 as one of the eligible calculation methods.- For further information, please relate to the document "SeismicResponseSpectrumGUI.pdf" included in the .zip file.

Robust function to generate multi-component constant-ductility nonlinear-inelastic response spectra.

. rotational acceleration and tilt).It also computes components of seismic input energy imparted to the SDOF oscillator. Its features are:- Multi-axial excitation (simultaneous horizontal, vertical and

Simulates a seismic survey over a rectangular grid of area x by y meters

Seismic surveying requires placing a large number of sensors (geophones) in a large grid pattern, triggering a seismic event, and recording accelerometer readings at each sensor. These readings are

Imports/plots and exports seismic data file in the IRIS/SAC format.

Matlab codes to read and write SAC seismic data file

These are the files used in the webinar on Feb. 23, 2011.

You can watch the archived version of this webinar at http://www.mathworks.com/videos/large-data-in-matlab-a-seismic-data-processing-case-study-81792.html (recommended). The demos show how to manage

G_Seis

version 1.0.0

by Kerim Khemraev

GUI 2D-Seismic data processing software

GUI 2D-Seismic data processing software. The main functionality allows to perform surface-consistent operations based on different 2, 3 and 4-factors mathematical models. Such operations are

Komputasi Geofisika, Universitas Pertamina

: https://github.com/Metkom/OSGPUP/edit/master/seismic%20processing/seismic_velocity_depth.mCite: Wirantara, Putu Pasek; Nagara, Jeremy Adi Padma; Purwakusuma, Rachenda Pandu; Rahmah, Tazkia; Christofel, David (2018): Mencari Kecepatan dan Kedalaman Gelombang Seismik Refraksi. figshare

Komputasi Geofisika, Universitas Pertamina

: https://github.com/Metkom/OSGPUP/edit/master/seismic%20processing/seismic_first_break.mCite: Yasir, Moh.; Haq, M. Syauqil; Lase, Fanzly Togap Zisochi; Sena, Ariestian; Ilmi, M. Wildi Nurul; Sestha, Andrata Ganesha (2018): First Break Picking Data Seismik Refraksi. figshare

Komputasi Geofisika, Universitas Pertamina

: https://github.com/Metkom/OSGPUP/edit/master/seismic%20processing/seismic_bandpass_filter.mCite: Hidayat, Lutfi Nur; Syafrudin, Taufan Rifqi; Suwesti, Angreani; Khakim, Umar Abdul; Astuti, Mega Dwi; Hanafi, Mochammad Ibnu (2018): Bandpass Filter pada Data Seismik. figshare

Komputasi Geofisika, Universitas Pertamina

: https://github.com/Metkom/OSGPUP/blob/master/Forward%20modeling/seismic_wedge_model.mCite: Anugerah, Nisfu; Ginting, Gamaliel Rhema; Wicaksono, Gigih Aji; Salsabila, Alda; Subakti, Puguh Ari; Syahputra, Loris Alif (2018): Membuat Model Sintetik untuk Model Pembajian. figshare

Komputasi Geofisika, Universitas Pertamina

: https://github.com/Metkom/OSGPUP/edit/master/seismic%20processing/seismic_data_spektrum.mCite: Aisy, Safira Rihhadatul; Elsalama, Nadiah Faridah Firdausi; Anugrah, Sari Atika; Nabila, Afviya; Nugraha, Rama Desta (2018): Spektrum Data Seismik sebagai Fungsi Kedalaman. figshare

The seismic analysis in ANSYS may be implemented with ANSeismic

acceleration–time history data are used for seismic analysis. Such time histories may be derived synthetically, by either numerical simulation of the source and wave propagation mechanisms, or by considering proper

This Matlab function was developed to generate "Design Response Spectrum" based on the Iranian seismic standard named "Standard 2800".

Description in English:This Matlab function was developed to generate "Design Response Spectrum" based on the 4th edition of the Iranian seismic standard of the buildings named "Standard 2800". This

This Matlab function was developed to generate "Design Response Spectrum" based on the American standard named "ASCE/SEI 7-16".

function can obtain this spectrum for any seismic design categories and site classes.Description in Persian (Farsi):با استفاده از این تابع متلب می توانید طیف طرح لرزه ای آیین نامه بارگذاری امریکا (ویرایش

Script to calculate the seismic dispersion curve commonly used in MASW with curve picking options

Seismic instrument correction routine based on poles and zeros. User is let to do prior filtration.

The routine corrects raw record for amplitude and phase characteristics of the instrument according to poles, zeros and sensitivity constant provided. The correction is applied to the seismic trace

PPHASEPICKER is a powerful tool for automatically picking P-phase onsets.

seismic events. For your intended application, please note that filter corner frequencies may need to be updated manually within the code based on the frequency content of the input record. Reference

Denoise multicomponent/color images with directional M-band dual-tree (Hilbert) wavelets

Calculates P, S, SV and SH radiation pattern using shear-tensile seismic source model.

and azimuth.[1] Kwiatek, G. and Y. Ben-Zion (2013). Assessment of P and S wave energy radiated from very small shear-tensile seismic events in a deep South African mine. J. Geophys. Res. 118, 3630-3641

Response Spectrum Analysis for MDOF System

The purpose of this study is to develop a seismic analysis of MDOF Structure based on Response Spectrum Method. This analysis tool is written in MATLAB software to determine structural responses or a

cornerFreqs automatically detects appropriate bandpass filter corner frequencies by comparing signal's spectrum with noise spectrum.

cornerFreqs automatically detects appropriate bandpass filter cornerfrequencies by comparing the input signal's spectrum with the noise spectrum. MOTIVATION:Processing of seismic waveforms often

Approximations of P-wave phase velocity, group velocity, traveltime, phase-to-group, and group-to-phase direction conversion in VTI media

This package reproduces the numerical study and examples of the following study in seismic anisotropy: Abedi, M. M., 2020, Rational approximation of P-wave kinematics: Part I transversely isotropic

Approximations of P-wave phase velocity, group velocity, traveltime, phase-to-group, and group-to-phase direction equations in orthorhombic

This package reproduces the numerical study and examples of the following study in seismic anisotropy: Abedi, M. M., 2020, Rational approximation of P-wave kinematics: Part II orthorhombic media

Minimal Path Sets Seismic Reliability Evaluation of Lifeline Networks with Link and Node Failures

The fastest wiggle variable area seismic data plotting function after comparison.

Matlab tools for geophysical (mainly exploration seismic) interpretation and processing

Ge0MLib_Beta

version 2020.08.03

by Ivan V. Dmitriev

Marine engineering geophysical data processing toolbox (Beta).

with coordinates and time for seismic traces);gData -- Matrix content's functions (example: seismic traces filtration, gain, denoise, etc);gNav -- manipulations with Navigation and coordinates;gMap --

GITANES

version 1.3.0.0

by Peter Klin

GIT ANalysis of Earthquake Signals

amplification surveys intended for microzonation studies as well as for studies regarding the spectrum of the seismic source.

A penalized likelihood based agglomorative clustering method for detection of planar features in 3D point clouds.

A method for fault network reconstruction based on the 3D spatial distribution of seismicity. This method uses a bottom-up approach that relies on initial sampling of the small scale features and

Response computation of linear dynamic (time history) analysis of multi-degree of freedom system using ordinary differential equation

Seismic Response Modification. Example 3.5as part of assignment on Special Topics in Aseismatic Analysis course by Prof. Han-Seon Lee, Korea University. Step-by-step explanation is included here, please

Implementation of the three different sampling methods (DEW, FixR, NearN)

orders of magnitude in the recurrence times; thus, it would be precarious to use such maps for assessment of probabilistic seismic hazard on faults. Since one cannot know in advance what b value the real

Earthquake ground motion simulation using eigenquakes

and their corresponding simulated ones is small. Eigenquakes can be used for the generation of artificial earthquake ground motion records for the dynamic analysis of structures during their seismic

Calculating the amplitude spectrum with the desired frequency resolution and Improving Phase spectrum with thresholding

threshold value, it put zero instead of it.IF YOU USE THIS PROGRAM IN YOUR RESEARCH, PLEASE CITE THE FOLLOWING PAPER:Afshin Aghayan, Priyank Jaiswal, and Hamid Reza Siahkoohi (2016)."Seismic denoising using

ControlGM

version 1.1.0.0

by BCarltonNGI

Script to run ground motion functions.

This script calls other functions to import and processes acceleration time series, calculate various seismic parameters and export figures and results. It runs the functions ImportGM, ProcessGM

Computes P-phase arrival time in windowed digital single-component seismic recording using AIC

Calculates seismic parameters from an acceleration time series

This function calculates seismic parameters from an acceleration time series. Specifically, it calculates velocity vs time, displacement vs time, peak ground acceleration (PGA), peak ground velocity

StackSplit is a plugin for the MATLAB toolbox SplitLab (Wüstefeld et al., 2008)

environments, Geophysical Journal International 137, 821-830.- Wolfe, C. J. & Silver, P. G. (1998), Seismic anisotropy of oceanic upper mantle: Shear wave splitting methodologies and observations

Compute finite-difference coefficients to approximate first-order derivatives optimally

Various problems in science and engineering require a finite-difference approximation to first order derivatives on a staggered grid, for example in seismic wave modelling. Such finite-differences

Kagan angle

version 1.0.0

by Petr Kolar

Calculate KAGAN ANGLE between two DC earthquake source mechanisms

Provides minimum rotation between two DC (double couple) seismic source mechanisms minimum rotation ROTANGLE along axis given by THETA and PHI After Kagan, Y. Y. (1991). 3-D rotation of

SeisLab 3.01

version 1.5.0.0

by Eike Rietsch

Release 10.0301 of a collection of functions for analysis/display of seismic and well-log data.

Robust MatLAB function for nonlinear-inelastic time-history analysis of SDOF oscillator

computes components of seismic input energy imparted to SDOF oscillator. The main features are:- Multi-axial excitation- Material nonlinearity is presented by Ozdemir's rate-independent force-displacement

Fast MatLAB function for nonlinear-inelastic time-history analysis of a SDOF oscillator.

). "Relevance of Absolute and Relative Energy Content in Seismic Evaluation of Structures", Advances in Structural Engineering, 11(1): 17-34.Kalkan, E. and Kunnath S.K. (2007). "Effective Cyclic Energy as a

SeisLab 3.02

version 3.2.0.0

by Eike Rietsch

Release 15.09.21 of a collection of functions for analysis/display of seismic and well-log data.

A set of about 170 functions (plus support functions called by them) for analysis and display of exploration-seismic data and well logs. These functions read and write seismic data in standard SEG-Y

Seismic Crystals And Earthquake Shield Application

For more detailed information about subject, “Seismic Crystals And Earthquake Shield Application “ article, which is found at;http://arxiv.org/ftp/arxiv/papers/0902/0902.1429.pdfUser guide to run

Graizer-Kalkan (2015) Ground-Motion Prediction Equation for earthquake strong motion estimates.

continental earthquakes to be used in earthquake-engineering applications including probabilistic and deterministic seismic hazard analyses. The GK15 can be used for earthquakes with moment magnitudes 5.0–8.0

This is a Matlab implementation of the FilterPicker (Lomax et al., 2011)

Quoting from http://alomax.free.fr/FilterPicker/FilterPicker (Lomax et al., 2011) is a general purpose, broad-band, phase detector and picker which is applicable to real-time seismic monitoring and

Calculate elastic response spectra based on Eurocode 8

This script calculates the elastic response spectra based on Eurocode 8 Part1 (EN 1998-1 : 2004), for zones of seismicity of Type 1 or 2, and for ground types A, B, C, D and E. The output Response

Generation of artificial acceleration time histories consistent with given response spectrum

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