SPE3 Far-field Quicklook
The purpose of this report is to provide an overview of the seismic data collected during the SPE3 chemical shot. Farfield seismic data includes data collected at distances of more than 100 m from the shot and instruments deployed for the experiments. This report does not address infrasound, remote sensing, or seismic data collected by regional permanent stations. The primary goal is a fast data check before extensive analysis. The SPE3 shot was conducted on July 24, 2012 (DOY 206) at the SPE test site and in the same borehole as SPE1 and SPE2 (table 1). Data processing at LLNL primarily used mini-seed data volumes downloaded from the UNR server along with associated metadata. This is in contrast to earlier shots, where LLNL data was based on reformatted Reftek data. Sensor deployment was similar to previous shots, with a few changes. Parts of lines 1 (13, 14, 15, 16), 3 (23,26,36), and 5 (1-12) were recorded by telemetry as well as to disk, which provided immediate access to the data. A small array (6 station) geophone array was deployed southeast of the shot near AF9 to measure particle motions. A new rotational sensor (ATA ARS-16) was deployed at station L3-20.