SPUD Version 3.0

The Searchable Product Depository (SPUD) is the IRIS DMC's primary data product management system. Complementing the DMC's SEED and assembled data archives, which contain time series recordings, the SPUD system primarily contains derivative data products of other types (images, movies, etc.) created either at the DMC or by members of the community.

For users SPUD is the query and access point for these products. The web interfaces allow users to search for products using customized queries across product and event details. Users can search across all product types at once or within specific product types. SPUD also has web service interfaces for programmatic discovery and access to the data products.

If any products from SPUD are used in your research please be sure to cite the identified author of the product and the IRIS DMS [Citation Information].

Point-source synthetic seismograms (theoretical Green's functions) are used along with vertical component (LHZ channel) recordings of short-arc Rayleigh waves (R1) from M7.0+ earthquakes to calculate source time functions at GSN and other stations. STFs are estimated using a simple two-source forward modeling approach by sweeping through the parameter space of two smoothed triangle and/or trapezoid functions of various widths, offset and amplitude and retaining the best fitting solution.

For more information on R1 source time functions visit the product page.

This product is automatically generated without human review.

This page queries for Source Time Function products.

• Click on row in query results to view item detail.
• Column headings control sort order of results.
• Use map to constrain latitude and longitude.
• Max and min latitude and longitude can be entered in the corresponding text fields.
• Markers on map can be clicked for details and will link to item detail page.
• Start and end dates are specified by clicking on date entry fields to enable date selector.
• Or use popup calendar to select date by clicking on calendar icon next to date fields.
• Min and max magnitude and depth are controlled via sliders. Once slider is selected, move by dragging with mouse or use arrow keys.
• Clear button removes all selection criteria
• Download button will return a zip file containing all items matching current criteria or only selected items (if any are selected via leftmost column)
• There is a product specific limit to the number of items that can be downloaded at one time.

Requested download count exceeds maximum size (200) for this product.