A simple system for recording time series of data from a mobile platform as a function of its position

摘要

By installing recording instruments on board, Inst. of Marine Research has since 1935 collectedtemperature and salinity data from waters being trafficed by passenger ships from Bergen to Kirkenesand and from cargo ships travelling the North Sea between Bergen and Newcastle. The methodsused to acquire data have changed with the available technology, and several technical updateshave been made since the start of this service.Until recently a good way to continuously record the ship's position has been missing.The introduction of the satellite based Global Positioning Service (GPS) has solved this problem.Via GPS the position of most moving platforms can now be recorded in a simple way.This paper describes a general GPS- based system for recording of data from the sea surface as afunction of time and position which has been applied to the Bergen- Kirkenes coastal express. Thesystem can acquire GPS-position and environmental directly or by merging GPS - time informationfrom one recorder with environmental data /time information from other recorders.