CTBT: Science and Technology Conference 2025 - SnT2025

Recovery Efforts in the Scanning and Digitization of Film and 9-track Seismic Data Holdings of the Livermore Nevada Network

O2.4-456

Not scheduled

15m

Forum

Oral T2.4 Historical Data from Nuclear Test Monitoring O2.4 Historical Data from Nuclear Test Monitoring

Speaker

Ms Amanda Price (Lawrence Livermore National Laboratory (LLNL))

Description

Historical geophysical data recorded during the peak of nuclear testing is rare and limited. Efforts have been made to preserve and digitize data but have minimal quality control from decades of lost history and retiring personnel. The Livermore Nevada Network (LNN) is a seismic network in California, Nevada and Utah deployed in the 1960s to record nuclear explosive testing at the Nevada Test Site (NTS), now known as the Nevada National Security Site (NNSS). Over the many decades the network has been running, the seismic information was recorded and stored in a variety of analog and digital formats. We will present our efforts to recover the physical film holdings as well as the digital 9-track holdings, including the establishment of a physical holdings catalog, QC efforts, and results for acetate film as well as approaches to recapture and preserve metadata using ML.