Three pronged spear of Roman and Greek Sea Gods Neptune and Poseidon.


Related Terms

ORTHOMETRIC HEIGHT

The distance above sea level measured along a plumb line.

MIRROR INTERFEROMETER

An interferometer used in radio astronomy, in which the sea surface acts as a mirror to reflect radio waves up to a single antenna, where the reflected waves interfere with the waves arriving directly from the source.

HYPSOMETRY

The measuring of elevation with reference to sea level.

SEA

Ship Event Analysis

AHD

Australian Height Datum adopted by the National Mapping Council for vertical control for mapping (mean sea level 1966-68).

ABYSSAL GAP

A narrow break in a sea floor rise or between two abyssal plains.

A.H.D.

Australian Height Datum adopted by the National Mapping Council for vertical control for mapping (mean sea level 1966-68).

ARMING THE LEAD

Placing tallow in the recess in the bottom of the sounding lead to ascertain the nature of the sea bed.

A.L.P.

Articulated loading platform; a partially buoyant tower rising from a universal joint on the sea floor and used for berthing and loading at oil platforms.

ALP

Articulated loading platform; a partially buoyant tower rising from a universal joint on the sea floor and used for berthing and loading at oil platforms.

Related questions

MarineProHelp 2018 - 2021