Subnose-1. electrochemical tracking of odor plumes at 900 m beneath the ocean surface

High-resolution (18 75 Hz) microscale (three, 200 ~tnl average d ~a m e t e r sensors) measurements of the turbulent distribution of chemicals from an odor source initiated from a platform at 900 m beneath the ocean surface were studied from a deep-diving submersible, the Johnson Sea-Link The recording sensors were attached to a movable mechanical arm on the submersible and signals from the chemical sensor were recorded using a specially designed battery-powered microcomputer-controlled instrument The recordings showed that both r a p ~d and slow time course chemical signals exlsted in the odor plume at distances of as much as 50 m from the chemical source In addition, these studies support that this new technology can be successfully employed to study the dynamics of odor dispersal and/oi nutrient chemical dynamics In a remote marine environment