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Eng ID Term Definition
2121
grid: Universal Transverse Mercator (UTM)
A grid system in which a grid network is applied to TRANS­VER­SE MERCATOR PROJEC­TIONS of zones of the EARTH's sur­face extending to 80° N. ... more
A grid system in which a grid network is applied to TRANS­VER­SE MERCATOR PROJEC­TIONS of zones of the EARTH's sur­face extending to 80° N. and S. LATITUDES.
2122
grid azimuth
See AZIMUTH.
2123
grid bearing
See BEARING.
2124
grid coordinates
See COORDINATES.
2125
grid course
See COURSE.
2126
grid declination
The angular difference in DIRECTION between GRID NORTH and TRUE NORTH. It is measured east or west from TRUE NORTH.
2127
grid direction
See DIRECTION.
2128
gridiron
See CAREENING GRID.
2129
grid magnetic angle
See VARIATION: GRID.
2130
grid meridian
See MERIDIAN.
2131
grid method
In PHOTOGRAM­METRY, a method of plotting detail from OBLIQUE PHOTO­GRAPHS by superimposing a perspective of a map grid on a PHOTOGRAPH and t... more
In PHOTOGRAM­METRY, a method of plotting detail from OBLIQUE PHOTO­GRAPHS by superimposing a perspective of a map grid on a PHOTOGRAPH and trans­ferring the detail by eye, that is, by using the corresponding lines of the map grid and its per­spective as placement guides. See also GRID: PER­SPECTIVE.
2132
grid navigation
See NAVIGATION.
2133
grid north
See NORTH.
2134
grid ticks
Short lines indicating where selected grid lines intersect the NEAT LINE.
2135
grid variation
See VARIATION.
2136
grivation
See VARIATION: GRID.
2137
groin (or groyne)
A low artificial wall-like struc­ture of durable material extending from the LAND to seaward for a particular purpose, such as to protect th... more
A low artificial wall-like struc­ture of durable material extending from the LAND to seaward for a particular purpose, such as to protect the COAST or to force a CURRENT to scour a CHANNEL. Sometimes called arip-rap in New England waters.
2138
gross error
See ERROR.
2139
ground
The BOTTOM of the SEA. The solid surface of the EARTH.
2140
ground
v.t. and i.). To touch BOTTOM or run aground. See STRAND.