Principal investigators of experiments which have received PASSCAL support are required to archive their data set as described in the PASSCAL data delivery policy. To get started with the archiving process you will need your raw data and the data about your data, a.k.a. meta-data.
We recommend active-source data sets be archived in PASSCAL's PH5 format, though SEG-Y format is also acceptable. In PH5 format the bulk of the data set's meta-data are stored within the PH5, where as in SEG-Y, the meta-data are stored both in the trace and gather headers and in separate reports and/or documents.
Meta Data Requirements
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Shot/Source information - as a dep file, from the pocus program, a TSP input file (formatted ascii text file), or in spreadsheet form:
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time & identification of each shot/source
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latitude & longitude of each shot/source
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elevation of shot/source
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size of shot in kg or magnitude of source
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depth below surface of shot/source
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comments (if applicable)
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Receiver/Station information - in dep or TSP format, or in spreadsheet form:
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deployment and retrieval times for each array; an array being a logical collection of instruments each at a single location and all recording at the same sample rate.
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identification of each station
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serial number of receiver
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manufacturer and model of receiver
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type of sensor attached
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latitude & longitude of each station
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elevation of station
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comments (if applicable)
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General information about the experiment - please submit a PDF file:
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principal investigators names & institutions
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experiment name & nickname
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paragraph describing purpose of experiment
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paragraph describing layout of instruments
Raw Data Requirements
To begin your data processing, raw data should be in one of the following forms:
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.trd files
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.ref files
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compact flash disks
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raw disk images
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Shot borehole. Rock Damage experiment, Barre, Vermont 2008.
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Data Submission Requirements
A complete PH5 data file will contain all meta-data, as documented above, necessary to build a SEG-Y gather and additional documentation (reports, tables, etc) necessary for a researcher to assess a data set's utility for their research and put the data set to use.
Contact the data_group [at] passcal [dot] nmt [dot] edu (data group) when your data set is ready for review and archiving by PASSCAL staff.
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Additional submission requirements for SEG-Y format data sets
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If submitting seismic waveforms as shot gathers in SEG-Y format, additional stages of data reduction may be included, such as a final stack profile. All appropriate header values should be filled in according to the SEG-Y standard.
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Please include a description of the disk or other media contents (e.g. organization of data and files on the disk), and instructions on how to read them (e.g. multiple gathers may be concatenated into one SEG-Y file). In addition to the Data Report, please include all information on the geometry of the experiment (meta-data). Traces should be time-corrected whenever possible, and you should supply a discussion of whether timing corrections were applied to the data. If no timing corrections were applied, please include copies of the ref2segy log files.
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