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:

Tesoniero, A., Auer, L., Boschi, L., and Cammarano, F. (2015). Hydration of marginal basins and compositional variations within the continental lithospheric mantle inferred from a new global model of shear and compressional velocity. Journal of Geophysical Research: Solid Earth.

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/10162642

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 joint model of radially anisotropic P- and S-wave velocity heterogeneity icon
Model Summary
Name:  SPani
Title:  A global joint model of radially anisotropic P- and S-wave velocity heterogeneity
Type: 3-D Tomography Earth Model
Sub Type:  Compressional and Shear velocity variations with respect to PREM, absolute compressional and shear wave speed (km/s), radial compressional and shear wave anisotropy.
Year 2015
Author(s): Andrea Tesoniero
Department of Geosciences and Natural Resource Management
University of Copenhagen
Copenhagen, Denmark

Ludwig Auer
Institut ür Geophysik, Eidgenössisch Technische Hochschule
ürich, Switzerland

Lapo Boschi
Sorbonne Universités, UPMC Univ Paris 06
Institut des Sciences de la Terre Paris (iSTeP)
Paris, France

Fabio Cammarano
Department of Geosciences and Natural Resource Management
University of Copenhagen
Copenhagen, Denmark
Reference(s): Tesoniero, A., Auer, L., Boschi, L., and Cammarano, F. (2015). Hydration of marginal basins and compositional variations within the continental lithospheric mantle inferred from a new global model of shear and compressional velocity. Journal of Geophysical Research: Solid Earth.
DOI: doi:10.17611/DP/10162642
Depth Coverage: 80.0 - 2891.0 km
Areal Coverage: Latitude: -90.0 to 90.0 Longitude: -180.0 to 180.0
Model Description We invert possibly the largest dataset of seismic phases. The model is parameterized in voxels and layers (5×5 degrees cells and 28 vertical layers). Model parameters are dlnvph, dlnvpv, dlnvsh, dlnvsv. The inversion scheme incorporates an extra regularization term in the form of isotropic S/P velocity variation.
Data Set Description [Ekstom, 2011, Visser et al., 2008] for fundamental and high overtones respectively, and [Antolik et al., 2003, Ritsema and van Heijst, 2002, Ritsema et al., 2011] for direct P body wave phases, multiple bouncing P phases and and major S body wave phases respectively.
EMC Page ds.iris.edu/ds/products/emc-spani/
Model Data
DescriptionSizeModel
the netCDF binary for the above model. 1.7 MB
Based On
TypeNameTitleReference
1D ReferencePREMPreliminary Reference Earth Model (PREM) Dziewonski and Anderson (1981)
Model URLs
URLDescription
http://github.com/atesoniero/SPanioriginal model files from the model download page
sotropic VP relative variations at different depths for our preferred model SPani.
Model Areal Coverage
Contributions