# IRIS EMC Data Source Data source for generating a GeoModelGrids model from an IRIS EMC model. Currently, only conversion of vertex-based grids are supported. ## `iris_emc` parameters + **filename** *(string)* Relative or absolute path of IRIS EMC NetCDF file. ## Example This example illustrates use of the IRIS EMC data source to convert the Moulik and others S362ANI+M 3D seismic velocity model from the IRIS EMC format to a GeoModelGrids model. Most of the model metadata is extracted from the NetCDF file. ```{code-block} cfg [geomodelgrids] filename = seismic_moulik_etal_S362ANI+M.h5 data_source = geomodelgrids.create.data_srcs.iris_emc.datasrc.EMCNetCDF repository_url = N/A repository_name = None repository_institution = None repository_doi = None [domain] batch_size = 25000000 [block] chunk_size = (15, 15, 25, 3) [iris_emc] filename = S362ANI+M_kmps.nc ```