IRIS DMC‘s Latest Data Products

Date: 4/26/2019

Time: 06:00 PM

Room: Grand Ballroom

The IRIS Data Management Center (DMC) has been serving the seismological research community with data-derived products since 2009. We are currently serving 29 distinct data products that can be use by researchers working in related disciplines and beyond. In this presentation we will highlight 4 new developments as follows:

The Surface-Wave Radiation Patterns (SWRP*) is our latest data product. Following major earthquakes, radiation patterns at a set of frequencies are generated and made available from our product repository. The SWRP product also provides an interactive web-based application to generate radiation patterns for arbitrary source parameters, allowing users to explore the effect of parameters on the directional dependency of surface waves.

Our recent Exotic Seismic Events Catalog (ESEC**) product provides information on non-earthquake seismic events such as landslides, debris flows, dam collapses, etc. that generate seismic signals but are rarely included in earthquake catalogs.

The DMC’s Earth Model Collaboration (EMC) currently hosts more than 64 contributed Earth models. In addition to our browser-based visualization tools, we now offer a set of plugins for 3D desktop visualization using ParaView. The plugins are customizable to allow users to visualize their own Earth models or auxiliary data in 3D.

We have also released a Python package to compute horizontal-to-vertical spectral ratios (HVSR) using available power spectral density (PSD) estimates of ambient noise available from the DMC’s quality assurance system. These measurements can be readily used to compute site response for seismic stations.

* SWRP: developed by Boris Rösler and Suzan van der Lee (Northwestern University)

** ESEC: developed and maintained in collaboration with Kate Allstadt (USGS) and Steve Malone (PNSN)

Presenting Author: Manochehr Bahavar

Authors