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SigmaSpectra
An open-source program that selects and scales a suite of earthquake motions to fit a target spectrum.
Download DocumentationGround motion selection to fit a target spectrum.
SigmaSpectra is an open-source program that selects and scales a suite of earthquake motions to fit a target spectrum using the methodology of Kottke and Rathje (Earthquake Spectra, 2008). The scaling also controls
the variability within the suite of motions. The user provides the target spectrum, a library of candidate motions, and the number of motions required for the suite. The program outputs the selected motions and
scale factors.
| Category | Soil Dynamics , Geotechnical Earthquake Engineering |
| Licence Type | Freeware |
| Operating Systems | Windows Server 2008, Windows 95/98, Windows 7, Windows 3x, Windows 2000, Windows Vista, Linux, iOS, Windows NT, Windows XP |
| Developer | Ellen Rathje and Albert Kottke |
| Developer Email | [email protected] |
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