drifting subsurface profiling float An unmanned instrumented platform drifting freely in the water column that periodically makes vertical traverses through the water column (e.g. Argo float). 2013-08-20 13:53:41.0 SDN:L06::46 SDN:L06::46 SDN:L06::46 2 2 2013-08-20 13:53:41.0 accepted false