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19.4.0

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@fabiolsilva fabiolsilva released this 30 May 18:26
19.4.0
1e5fdb5

Broadband Platform 19.4.0

This full release of the Broadband Platform includes several new features and bug fixes. Below is a summary of the improvements and modifications included in this release of the Broadband Platform.

Method Updates

  • Added the Irikura Recipe Method 2 simulation method to the Broadband Platform. It uses the same rupture generator as the Irikura Recipe Method 1, developed by Arben Pitarka, followed by the GP low-frequency wave propagation code. It then uses a high-frequency module developed by NIED.

  • Both Song and Irikura Recipe Method 1 methods now support multi-segment ruptures. These two methods create a version 2.0 SRF file that can be used directly by the GP wave propagation codes and allows a single Broadband Platform simulation to include all segments from a multi-plane rupture.

  • Used the GP site response module in all California and Japan validation events.

  • Upgraded the SDSU BBToolbox package to version 2.1, with time-domain merging of LF and HF seismograms.

  • Re-calculated Greens Functions for California and Japan using 500m/s as reference Vs, bringing the computed synthetic seismograms closer to site conditions and requiring smaller corrections by the site amplification module.

Other Improvements

  • Updated the GP rupture generator to genslip-5.4.1 and the GP high-frequency code to hb_high_6.0.3.

  • Added Green's Functions and validation events for the Central coast region of California.

  • Extended the GP site response module so it can work with all 7 simulation methods.

  • Upgraded cluster simulation scripts for use with the Slurm job scheduler. The original collection of scripts using PBS is still available for reference.

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