About SPUD

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].

About Earth Model Products

The Earth models presented here are contributed to the IRIS Earth Model Collaboration (EMC) by various researchers.

Two general types of model are available for download:

  • Tomography Models:
    The contributed Earth models in their original format and in a common netCDF (network Common Data Form). A model overview page provides a summary of the model.

  • Reference Models:
    Most EMC Earth models are expressed as perturbations relative to a particular reference 1-D model. These reference models are available for download in expanded comma separated value (CSV) file format with the first two lines representing the file’s header.

For model visualization and additional information about the models visit the IRIS EMC Product Page.

Citing Earth Model Products

If you use Earth Models in publications, please cite according to the instructions at:

Portner, D. E., Rodríguez, E. E., Beck, S., Zandt, G., Scire, A., Rocha, M. P., et al. ( 2020). Detailed structure of the subducted Nazca slab into the lower mantle derived from continent‐scale teleseismic P wave tomography. Journal of Geophysical Research: Solid Earth, 125, e2019JB017884. https://doi.org/https://doi.org/10.1029/2019JB017884

http://ds.iris.edu/ds/products/emc/#citation

When citing this Earth Model page please use the Digital Object Identifier (DOI):

doi:10.17611/DP/18155672

Earth Model Help

The page displays information for individual Earth Models.

The model information is summarized at the top including links to further information.
Regional finite-frequency teleseismic P-wave tomography model for South America. icon
Model Summary
Name:  SAM5_P_2019
Title:  Regional finite-frequency teleseismic P-wave tomography model for South America.
Type: 3-D Tomography Earth Model
Sub Type:  Relative P-wave velocity (%dVp)
Year 2019
Author(s): Daniel Evan Portner, Earth and Planetary Laboratory, Carnegie Institution for Science, Washington, DC
Emily E. Rodriguez, Department of Geosciences, University of Arizona, Tucson, AZ
Susan Beck, Department of Geosciences, University of Arizona, Tucson, AZ; George Zandt, Department of Geosciences, University of Arizona, Tucson, AZ
Alissa Scire, IRIS PASSCAL Instrument Center, New Mexico Institute of Mining and Technology, Socorro, NM
Marcelo P. Rocha, Instituto de Geosciencias, Universidade de Brasilia, Brasilia, Brazil
Marcelo B. Bianchi, Centro de Sismologia, Universidade de Sao Paulo, Sao Paulo, Brazil
Mario Ruiz, Instituto Geofisico, Escuela Politecnica Nacional, Quito, Ecuador
George Sand Franca, Instituto de Geosciencias, Universidade de Brasilia, Brasilia, Brazil
Cristobal Condori, Instituto de Geosciencias, Universidade de Brasilia, Brasilia, Brazil
Patricia Alvarado, Consejo Nacional de Investigaciones Cientificas y Tecnicas, Universidad Nacional de San Juan, San Juan, Argentina
Reference(s): Portner, D. E., Rodríguez, E. E., Beck, S., Zandt, G., Scire, A., Rocha, M. P., et al. ( 2020). Detailed structure of the subducted Nazca slab into the lower mantle derived from continent‐scale teleseismic P wave tomography. Journal of Geophysical Research: Solid Earth, 125, e2019JB017884. https://doi.org/https://doi.org/10.1029/2019JB017884
DOI: doi:10.17611/DP/18155672
Depth Coverage: 60.0 - 1450.0 km
Areal Coverage: Latitude: -70.0 to 26.0 Longitude: -120.0 to -4.0
Model Description SAM5_P_2019 uses relative arrival time residuals from 2,084 earthquakes recorded at 1,113 seismic stations from 42 temporary and permanent seismic networks across South America. Residuals are measured in four frequency bands and are inverted in a finite-frequency tomographic inversion.
Data Set Description This model uses relative arrival time residuals from 2,084 earthquakes recorded at 1,113 seismic stations from 42 temporary and permanent seismic networks across South America. Most of the raw waveforms are publicly available at the IRIS, GFZ, USP, and RSBR seismic data repositories.
EMC Page ds.iris.edu/ds/products/emc-sam5_p_2019/
Model Data
DescriptionSizeModel
The netCDF binary for the above model 57.6 MB
Caption for the image: SAM5_P_2019 tomography model in map view at various depths. The solid block contours are of the accompanying hit quality measure at a value of 0.2. Contours from the Slab2 slab model (magenta lines) and earthquakes from the ISC earthquake catalog (green circles) are shown for reference. Labeled anomalies are discussed in the associated paper.
Model Areal Coverage
Contributions