Persistent Persistent Pro? ling of the Pro? ling of the Credit: J. Vorneveld in Morris et al. (SAEON) 2017Two Decades of Moored ADCPs off Southern AfricaBy Peter Spain Ph.D., Teledyne RD InstrumentsOctober 201822 MTRREVISED 22 to 29.indd 22 REVISED 22 to 29.indd 22 10/17/2018 10:48:23 AM10/17/2018 10:48:23 AM