Real time marine environment monitoring based on the DGPS and wireless mobile IT solution

Real time data collection of water quality monitoring sensors, autoanalyzer and sonar depth based on DGPS and wireless data communication done from 2001-2003, in the coastal waters of Incheon, Korea. Synchronized signals from the multi-parameter sensor unit (salinity, temperature, depth, pH, DO, turbidity and chlorophyll), auto-analyzer (nitrate and phosphate), and DGPS were obtained at one-second interval and delivered to remote control server through mobile CDMA 2000-IX wireless network (download speed at 144 Kbps).