Inverted Echo Sounder Measurement of Dynamic Height Through an ENSO Cycle in the Central Equatorial Pacific
Date of Original Version
A four-year record from an inverted echo sounder, deployed near Palmyra Island at 6—N in the central Pacific Ocean, is compared with a simultaneous record of subsurface pressure from this island's lagoon. A factor m, converting round-trip acoustic travel time to surface dynamic height relative to a deep pressure level, was estimated from the ratio of the spectra of the two records in the energetic synoptic oscillation band. Year-to-year variation in m was not statistically significant. For the overall record, m was found to be - 70 — 8 dyn m s-1, where the error bounds represent a 90% confidence interval. This is consistent with first-baroclinic-mode excitation. © 1990 IEEE
Publication Title, e.g., Journal
IEEE Journal of Oceanic Engineering
Wimbush, Mark, Kathleen A. Donohue, Stephen M. Chiswell, and Roger Lukas. "Inverted Echo Sounder Measurement of Dynamic Height Through an ENSO Cycle in the Central Equatorial Pacific." IEEE Journal of Oceanic Engineering 15, 4 (1990). doi: 10.1109/48.103534.