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Data Services Products: Under Development

Below is a list of products currently under development and produced either at the DMC or by the research community that are available from the DMC.

Have a data product idea? Feel free to suggest a data product .

Noise Toolkit PDF-PSD Noise Toolkit PDF/PSD bundle

An open-source script bundle that contains a series of Python scripts to:

  • request waveforms and response data for given station/channels using the ObsPy FDSN client
    OR read user’s waveform data files (in SAC, MSEED, CSS, etc. format) and only request response information
  • compute and populate an hourly file-based PSD database
  • extract PSDs and PDFs from the PSD database
  • More information »

Noise Toolkit ME Noise Toolkit Microseism Energy (ME) bundle

An open-source script bundle that contains 3 Python scripts to:

  • calculate power from PSDs over selected period bands (bins)
  • calculate median power for a given time window from the computed PSD powers
  • plot temporal variation of median power

Noise Toolkit The IRIS DMC Noise Toolkit

The IRIS DMC Noise Toolkit is a collection of 3 open-source Python script bundles that could be used to:

  1. Compute Power Spectral Densities (PSD) of waveform data
  2. Perform microseism energy computations from PSDs
  3. Perform frequency dependent polarization analysis of seismograms

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Files of the global stacks and vespagrams for users wanting to analyze them or generate plots.

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GlobalGreensTensors Global Empirical Green's Tensor database

A nested global empirical Green’s tensor (EGT) database derived from three-component continuous data at several different scale lengths:

  • Global: Intermediate- to very long-period (20-600 s) EGTs extracted from seismic data recorded by GSN, GEOFONE & other broadband stations with ~1000 km station spacing
  • Continental: Short to long-period (8-300 s) EGTs from selected broadband regional networks and temporary deployments (e.g., North America) with 100–1000 km station spacing
  • Regional: Short to long-period (4-200 s) waves from broadband regional networks and temporary deployments (e.g. western US) with 10-100 km station spacing
  • Local: Short- to intermediate-period (1-30 s) waves from broadband and short-period networks with station spacing of 1-10 km

The database is intended to be non-static: As new seismic data are available from the existing stations and new stations are deployed, the database may be updated. It is also intended to be an open database for anyone to contribute as long as data processing follows a consistent, best practice.

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