TY - RPRT TI - Using component ratios to detect metadata and instrument problems of seismic stations: Examples from 18 years of GEOSCOPE data AU - Helle A. Pedersen AU - Nicolas Leroy AU - Dimitri Zigone AU - Martin Vallee AU - Adam T. Ringler AU - David C. Wilson PY - 2019 DO - 10.1785/0220190180 UR - https://pubs.usgs.gov/publication/70207193 ID - 70207193 ER -