We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
An abbreviation marking sand on the seabed.
Also known as: Sand seabed abbreviation, Bottom quality sand
On a nautical chart an abbreviation printed among the soundings records the nature of the seabed, sand being marked by its own short abbreviation.
Records that the seabed at that point is sand.
Contexts: Navigation
Matters because holding ground determines whether an anchor will hold, so bottom quality is charted alongside depth for anchoring rather than for interest.
Contexts: Navigation
A short lower-case abbreviation in letters printed beside a sounding.