mud pilot

mud pilot

[′məd ‚pī·lət]
(navigation)
A person who pilots a vessel by visually observing changes in the color of the water as the depth of the water increases or decreases.
References in periodicals archive ?
Nippon Light Metals has broken ground on its red mud pilot plant on the grounds of the Jamaica Bauxite Institute (JBI) in Hope Gardens, St.
In the East Bay MUD pilot study, WaterSmart will provide participants with bi-monthly Home Water Reports designed to encourage consumers to reduce water use.