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:

Marone, F., S. van der Lee and D. Giardini 2004. “Three-dimensional upper-mantle S-velocity model for the Eurasia-Africa plate boundary region.” Geophys. J. Int. 158:109-130.

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/13618972

Earth Model Help

The page displays information for individual Earth Models.

The model information is summarized at the top including links to further information.
ak135-f velocity model, ak135 full model (spherical average) icon
Model Summary
Name:  MEAN
Title:  ak135-f velocity model, ak135 full model (spherical average)
Type: A 1-D modified IASP91 model
Sub Type:  S velocity
Year 0
Author(s): Federica Marone
Paul Scherrer Institute
5232 Villigen – PSI, Switzerland

Suzan van der Lee
Department of Earth and Planetary Sciences
Northwestern University
Evanston, IL 60208, USA
Reference(s): Marone, F., S. van der Lee and D. Giardini 2004. “Three-dimensional upper-mantle S-velocity model for the Eurasia-Africa plate boundary region.” Geophys. J. Int. 158:109-130.
DOI: doi:10.17611/DP/13618972
Depth Coverage: 0.0 - 6371.0 km
Areal Coverage: Latitude: -90.0 to 90.0 Longitude: -180.0 to 180.0
Model Description MEAN reference Earth model is based on the Earth model IASP91. MEAN replaces IASP91’s mid-crustal discontinuity and Moho depth of 20 and 35 km to 18 and 30 km, respectively. It also replaces IASP91’s a high S-velocity zone of the uppermost mantle (to the depth of 210 km) with a low S-velocity zone less than 4.5 km/s.
Data Set Description
EMC Page ds.iris.edu/ds/products/emc-mean/
Model Data
DescriptionSizeModel
Model Download in its netCDF format with columns left to right representing radius (km), density (g/cm3), Vp (km/s), Vs (km/s), Qκ, and Qμ 6.4 KB
Based On
TypeNameTitleReference
1D ReferenceIASP91iasp91 velocity model Kennett and Engdahl (1991)
Referenced By
TypeNameTitleReference
3-D Tomography Earth Model EAV09 3D shear-wave velocity model of western Eurasia, Arabia, and northern Africa from a joint inversion for multiple data sets Chang et al. (2010)
Figure, Marone et al. (2004), Comparison of 1D S-velocity model (MEAN) with IASP91 (Kennett and Engdahl, 1991).
Model Areal Coverage
Contributions