PH5 Structure

PH5 Data Structure

PH5 is built using multiple HDF5 files. It contains a master.ph5 file and a number of miniPH5_#####.ph5 files.

The master.ph5 file contains much of the metadata as well as links to the mini.ph5 files. The miniPH5_#####.ph5 files contain the actual timeseries data. The number of miniPH5_#####.ph5 files in a given archive depends on the data volume.

A master.ph5 file contains 6 HDF5 groups (_g):

• master.ph5

  1. Experiment_g

     • Experiment_t
       • Experiment level metadata

  2. Receivers_g

     • Holds trace data, metadata related to trace data, and links to the miniPH5_#####.ph5 files containing timeseries data.

  3. Reports_g

     • Contains any documents and/or reports for the experiment.

  4. Responses_g

     • Contains information about instrument response including both data logger and sensor.

  5. Sorts_g

     • Contains the experiment geometry (array and event) as well as all the metadata needed to tie everything together.

  6. Maps_g