Data

The documentation below offers instructions for archiving data from EPIC instrumentation in miniSEED format with metadata to be submitted as stationXML. To archive data from a EPIC experiment, select the appropriate documentation for your instrument for instructions for preparing the data before transferring it to EPIC. For the metadata, EPIC offers software for generating stationXML for your experiment. Please see the documentation for metadata generation using Nexus.

For EPIC PIs who previously archived data using Antelope, our documentation has been reworked to generate metadata in stationXML format via the EPIC program Nexus rather than using an Antelope database to create a dataless SEED. The documentation for archiving data with Antelope is still available on this page.

In order to accept your passive-source data for archiving please comply with the procedures and standards below. EPIC staff are available to assist you with meeting the requirements of archiving your SEED data as stated in the EPIC Data Delivery Policy. 

Regarding the archiving of SEED data, the policy may be summarized in three points:

For Flexible Array experiments, the Data Group at EarthScope/EPIC shares responsabilities with the Principal Investigator(s) for the archiving of their data as with EPIC experiments, however instead of the fully processed data in the required format (seed or hdf5) and dataless provided by PI on a EPIC Experiment, The PI and his team in a Flexible Array submit all the raw data and information needed to generate the metadata at EPIC.

The SEG-Y file written by ph5toseg is in big endian byte order and attempts to follow the SEG-Y rev 1 standard (May 2002) as outlined in the table below.

The file does not contain a Tape Label.

The Society of Exploration Geophysicists Y Format, or SEG Y, has been the accepted exploration industry data format for digital seismic data since 1975.  Originally a magnetic tape-centric format, SEG Y has evolved over the years to remain the data format industry standard for data analysis and processing.  The latest revision (revision 1 .pdf format) to the format was released in 2002. 

EPIC provides a valuable service to the scientific community by loaning seismometers, data recorders, and other equipment to professional researchers. After the hardware installation and recovery for each experiment, the raw data are harvested from every recording disk. Sometimes there are thousands of them. The raw files are gathered and converted into standard forms called SEED or ph5 formats. The final phase of the research process, which all our users consent to when they request our equipment, is the submission of their data results for archiving at the EarthScope Data Management Center. It is not always a straightforward conversion, especially for new users and students. That's when the EPIC Data Group steps in to help.

 
Morning Session: Passive-Source Processing and Data Archiving

NEW! DOWNLOADS OF WORKSHOP PRESENTATIONS IN PDF FORMAT

The motivation for this workshop was born in March of 2009 foreseeing the need for a broader understanding of antelope tools and its interfaces by EPIC staff and a group of researchers from New Mexico Tech (NMT).

   Data Delivery Policy

PH5, clearly a better choice as an archival data format.