https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.7 2026-04-15T10:53:30.610Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/instruments/eb4177cd-fbe6-4bb5-947b-9951353da2ef SCANFISH ScanFish is a towed undulating vehicle system designed for collectingprofile data of the water column in oceanographic, bathymetric andenvironmental monitoring applications at either fixed depth or to pre-programmed undulating flight path. The ScanFish MK II is an active unit, which generates an up or down force inorder to position the tow-fish in the water column. It is towed from a towpoint placed in a cut in the centre line from the leading edge of the fishbody. This tow point allows the cable to pivot ± 90° about a transverse axisjust forward of the centre of lift providing maximum control while ensuringvery good pitch stability resulting in an excellent symmetrical saw toothprofile.To give the control system feedback for the flap control, the ScanFish isequipped with pitch and roll sensors together with feedback sensors on theflaps. The feedback is also used to control the fish, so that it always fliesin a horizontal position - without roll - and during launch to ensure that thefish turns itself upright and level, in case the fish was 'flipped over' whenlowered into the water.This instrument may carry a number of sensors measuring parameters like conductivity (salinity), temperature, pressure, fluorescence, photosynthetically active radiation (PAR) and other parameters. [Summary adapted from http://www.eiva.dk/sw316.asp]