The shot gathers of the Finnish Reflection Experiment 2001–2003 are available as a set of SEG-Y files. Each SEG-Y contains typically a maximum of 1.1 GB of field recordings or a bit more than 50 shots. Typically, the file sizes range between 800–1000 MB. Where shot points have been skipped, the SEG-Y size is smaller.
These files are quality-controlled, meaning that noise tests, accidental recordings and duplicate traces have been removed and all relevant trace headers are set. The shot gathers have been prepared at the University of Helsinki, Institute of Seismology, during the year 2016.
The observer's notes and pole coordinates are also available as quality-controlled versions. Typical flaws in the original observer's notes include typing errors, wrong or impossible numeric values, and noise tests being erroneously flagged as recordings. A comprehensive erratum is available for all lines and can be downloaded under the OpenFIRE table view.
The samples are in IBM floats. The sampling interval is 2 milliseconds and the number of samples per trace is 15 000.
For the original, demultiplexed and correlated field recordings from Specgeofizika, see Raw data.