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:

Grand, S. P. 2002. "Mantle Shear-Wave Tomography and the Fate of Subducted Slabs." Phil. Trans. R. Soc. Lond. 360:2475-2491.

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/10131216

Earth Model Help

The page displays information for individual Earth Models.

The model information is summarized at the top including links to further information.
A global mantle shear-wave tomography model icon
Model Summary
Name:  TX2011
Title:  A global mantle shear-wave tomography model
Type: 3D Tomography
Sub Type:  S velocity
Year 2011
Author(s): Stephen P. Grand
Department of Geological Sciences
The University of Texas, Austin Texas

Nathan A. Simmons
Atmospheric, Earth and Energy Division
Lawrence Livermore National Laboratory
Livermore, California, USA
Reference(s): Grand, S. P. 2002. "Mantle Shear-Wave Tomography and the Fate of Subducted Slabs." Phil. Trans. R. Soc. Lond. 360:2475-2491.
DOI: doi:10.17611/DP/10131216
Depth Coverage: 60.0 - 2800.0 km
Areal Coverage: Latitude: -90.0 to 90.0 Longitude: -180.0 to 180.0
Model Description TX2011 provides shear velocity perturbations with respect to the TX2011_ref reference model with the mean from the individual layers removed. The grid is not representative of the block size used in the inversion. The model assumes the crustal thickness is given by the Mooney, Laske and Masters crustal model, Mooney et al. (1998) , and thus velocity deviations in the upper most layer are with respect to a variable crustal thickness model.
Data Set Description
Web Page www.jsg.utexas.edu/researcher/stephen_grand
EMC Page ds.iris.edu/ds/products/emc-tx2011
Model Data
DescriptionSizeModel
Model on a 2°x2° grid for depths from 0 to 2890 km in netCDF format 6.1 MB
model TX2011 at various depths using different color scales, 0-100 km, 250-325 km, 600-750 km, 1150-1300 km, 1750-1900 km, 2350-2500 km
Model Areal Coverage
Contributions