Sma strong motion analyst processing software is a commercial windows. Sma strong motion analyst processing software is a commercial. Bap basic strongmotion accelerogram processing software, version 1. The programs are presented in five groups corresponding to the processing scheme developed at. Sd peak spectral displacements at different fixed frequencies of the measured earthquake shaking. Prism incorporates many of the processing techniques implemented in its predecessor, the software program bap basic strong motion accelerogram processing 1. Because of various reasons, the baseline drift in the strong motion accelerogram was often founded, especially in the nearfault accelerogram. Boore introduction these are some informal notes showing results of some procedures used in the processing of strong motion data. Bap basic strongmotion accelerogram processing software sudoc i 19. Software packages capable to address the need for strong motion record processing belong to two main categories. Basic strongmotion accelerogram processing software by april m. Converse and brady, 1992 developed and used by the nsmp to process earthquake strong motion records. Strong motion data processing smd various geosig instruments can provide parametric information containing the peak values i.
Douglas j 2003 what is a poor quality strong motion record. Sma strong motion analyst processing software is a commercial windows based tool designed to interactively process strong motion accelerograms. Sma strong motion analyst processing software is a commercial windows based tool designed to interactively process strong motion accelerograms, featuring. A dataset under investigation includes accelerograms from three stations, located in turkey dinar, izmit, kusadasi, all working with an analogue type of seismograph. A new opensource software for strong ground motion data processing.
Bap will calculate velocity and displacement from an input acceleration time series or it will calculate acceleration and displacement from an input. Rain and storm water harvesting for additional water. There are many schemes available for processing strongmotion data and it is important to be aware of the. This first report is the initial step in a continuing data processing program which will ultimately include all past recorded earthquakes as well as current data as it is collected. Routine computer processing of strongmotion accelerograms. The processing engine is integrated into the gui to help ensure consistency in processing.
Time series processing programs tspp boore 2008, is a collection. Basic strongmotion accelerogram processing software. Graizer, determination of the true ground displacement by using strong motion records, izvestiya phys solid earth, 15 1979 875885. United states department of the interior geological survey, 1992.
Basic strongmotion accelerogram processing software responsibility by april m. For dealing with the problem, in the study, the various reasons causing the. Properties of butterworth filters as used in my record processing software tspp by david m. The basic strong motion accelerogram processing bap software written by the usgs converse and brady 1992 or derivatives are commonly used for the routine. Clanguage software for computing strong ground motion. This report contains short descriptions, flow charts and listings of the computer programs that are currently being used for routine processing of strong motion accelerograms at the earthquake engineering research laboratory of the california institute of technology. Several codes for strong motion data processing have been made available since the early 90s. What are we actually recording in strong motion seismology. Open file report 92296a, united states department of the interior, united states geological survey, denver, co. Properties of butterworth filters as used in my record. Bap basic strongmotion accelerogram processing software version 1.
There are many schemes available for processing strongmotion data and it is important to be. The prism software consists of two major components. Books and openfile report section distributor denver, colo. Butterworth, chebyshev, and bessel filters with different orders are considered to eliminate the frequency noise. Effects of digital filtering in data processing of seismic. Clanguage software for computing strong ground motion metrics and seismograph self noise by 1j. The basic strong motion accelerogram processing bap software written by the usgs converse and brady, 1992 or derivatives are commonly used for the routine.
The baseline drift could lead to the unreliable velocity and displacement obtained by the accelerogram integration without or with improper specialized baseline correction. Analysis of strong ground motions to evaluate regional. Pdf prism automatically processes raw groundmotion acceleration records to generate data products that include corrected acceleration. Baseline correction of vibration acceleration signals with. During processing of the data, the filters used are a cosine taper from 45 to 50 hz and an acausal butterworth with a corner of 0. Pga peak ground acceleration, pgv peak ground velocity and spectral characteristics i. By bap basic strongmotion, accelerogram processing software, april m. The paper presents an application of digital filtering in data processing of acceleration records from earthquakes. Most of these informal notes are devoted to a comparison of causal and acausal lowcut.
Bap basic strongmotion accelerogram processing software. Strong motion recordings are the key in many earthquake. Converse and brady, 1992, and to california strong motion instrumentation program csmip processing shakal and others, 2003, 2004. Sorry, we are unable to provide the full text but you may find it at the following locations. Preface to the series the object of the present series is to make available accurate digitized data prepared in a uniform way for all recorded strong motion earthquakes. Basic strongmotion accelerogram processing software bap converse 1992, contains routines for signal processing, fourier amplitude spectra evaluation. Basic strongmotion accelerogram processing software bap. Pdf strong motion data processing is necessary to evaluate reliable ground motion for standard or specific applications. Basic strongmotion accelerogram processing software bap the basic strong motion accelerogram processing bap computer program was developed at the u. Basic strongmotion accelerogram processing software bap converse 1992, contains routines for signal processing, fourier amplitude spectra evaluation and response spectra calculation. An algorithm developed in matlab for the automatic selection of cut.
No warrantees, implied or explicit, are given for this software. The data set used for this study was therefore reduced to 161 records see table i and fig. Geological survey usgs to process and plot digitized strong motion earthquake records. Graizer, strong motion recordings and residual displacements. Statistical analysis of strongmotion accelerograms and. Hutt3 introduction this openfile report releases several software modules for public use. Us geological survey open file report 92296a, 1992. Bradybap basic strongmotion accelerogram processing software. Strong motion earthquake accelerograms, digitized and. This software includes a routine hicut for highcut.
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