Field Tests of the DOLPHIN/EM-100 Over Norfolk Canyon
2006
Kalcic, M. | Kaminsky, E.
Conference proceedings. Pub. in Surveying and Mapping Conference, p61-67, 1993.
Show more [+] Less [-]The Deep Ocean Logging Platform with Hydrographic Instrumentation and Navigation (DOLPHIN), developed for the Canadian Hydrographic Service (CHS), was field tested in the United States by the Naval Research Laboratory, Stennis. Tests were conducted in conjunction with the National Oceanic and Atmospheric Administration (NOAA)-National Ocean Service and the CHS. Patch tests were conducted to evaluate roll, pitch, heave, and navigation errors, and survey lines were run over the Norfolk Canyon to evaluate bathymetry. Multibeam data were collected simultaneously by the NOAA ship WHITING and later by the US Navy ship LITTLEHALES. The DOLPHIN and LITTLEHALES are both equipped with the Simrad EM-100 (95 kHz) and the WHITING is equipped with the Seabeam HYDROCHART II (36 kHz). All three systems used differential GPS for positioning. The data sets were processed and evaluated and results of the evaluation of the DOLPHIN system are given for attitude, navigation, rms errors, bathymetry and handling. Recommendations are given for improving hydrographic data collection using the DOLPHIN.
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