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:

Houser, C., G. Masters, P. Shearer and G. Laske. 2008. "Shear and compressional velocity models of the mantle from cluster analysis of long-period waveforms." Geophys. J. Int., 174:195-212.

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/10131133

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 shear velocity model of the mantle icon
Model Summary
Name:  HMSL-S06
Title:  A global shear velocity model of the mantle
Type: 3D Tomography
Sub Type:  S velocity
Year 2006
Author(s): Christine Houser
U.C. San Diego (now at UCSC Earth Sciences)
California, USA

T. Guy Masters
U.C. San Diego
California, USA

Peter Shearer
U.C. San Diego
California, USA

Gabi Laske
U.C. San Diego
California, USA
Reference(s): Houser, C., G. Masters, P. Shearer and G. Laske. 2008. "Shear and compressional velocity models of the mantle from cluster analysis of long-period waveforms." Geophys. J. Int., 174:195-212.
DOI: doi:10.17611/DP/10131133
Depth Coverage: 66.0 - 2798.0 km
Areal Coverage: Latitude: -90.0 to 90.0 Longitude: -180.0 to 180.0
Model Description HMSL-S06 is an isotropic shear velocity model with 18 layers (approximately 100 km thickness in the upper mantle and 200 km in the lower mantle) and 2578 blocks in each layer (approximately 4 degree equal area blocks at the equator).
Data Set Description
Web Page es.ucsc.edu/~creif/Sites/Christine_Houser/Models.html
EMC Page ds.iris.edu/ds/products/emc-hmsl-s06/
Model Data
DescriptionSizeModel
The netCDF binary of the model. 288.0 KB
Figure below, Houser et al. (2008) , shows depth slices of HMSL-S06, where the mean from each layer has been removed.
Model Areal Coverage
Contributions