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Eng ID Term Definition
1121
covers and uncovers (or discovers)
Expression intended to indicate an area of a REEF or other projection from the BOTTOM of a body of water which periodically extends above an... more
Expression intended to indicate an area of a REEF or other projection from the BOTTOM of a body of water which periodically extends above and is submerged below the surface. Also referred to as dries or uncovers.
1122
crab
The condition caused by failure to orient a CAMERA with respect to the TRACK of the airplane. In vertical PHOTOGRAPHY, crab is indi­cated by... more
The condition caused by failure to orient a CAMERA with respect to the TRACK of the airplane. In vertical PHOTOGRAPHY, crab is indi­cated by the edges of the PHOTOGRAPHS not being parallel to the airbase lines.
1123
crack
Any fracture or RIFT in SEA ICE not sufficient­ly wide to be described as a LEAD.
1124
crag
A steep or precipitous rugged ROCK.
1125
crater
Bowl-shaped cavity, at the SUMMIT or on the side of a volcano.
1126
creek
A comparatively narrow INLET, of fresh or salt water, which is tidal throughout its whole course. A small TRIBUTARY. A small, narrow BAY whi... more
A comparatively narrow INLET, of fresh or salt water, which is tidal throughout its whole course. A small TRIBUTARY. A small, narrow BAY which extends farther inland than a COVE.
1127
crescent
(adj.). See PHASES OF THE MOON.
1128
crest
The highest part of a WAVE, SWELL, RIDGE, etc.
1129
crib
A permanent marine structure usually designed to support or elevate pipelines; especially a structure enclosing a screening device at the of... more
A permanent marine structure usually designed to support or elevate pipelines; especially a structure enclosing a screening device at the offshore end of a potable water intake pipe. The structure is commonly a heavy timber enclosure that has been sunken with rocks or other debris.
1130
critical sounding
The least depth in proximity to a known or potential navigational route.
1131
cross bearings
Two or more BEARINGS used as intersecting LINES OF POSITION for fixing the POSITION of a craft.
1132
cross hairs
See CROSS WIRES.
1133
crossing angle
See ANGLE.
1134
crosslines
Sounding lines that cross the main system of lines at either right angles or at an oblique angle to serve as a check on the accuracy of the ... more
Sounding lines that cross the main system of lines at either right angles or at an oblique angle to serve as a check on the accuracy of the work.
1135
cross lines of sounding
SOUNDING LINES run approximately at right angles to those of normal direction, frequently useful when examining SHOALS. Cross lines are also... more
SOUNDING LINES run approximately at right angles to those of normal direction, frequently useful when examining SHOALS. Cross lines are also run after completing the main system of SOUNDING LINES, with the purpose of checking them.
1136
cross sea
A series of WAVES or SWELL crossing another wave system at an angle.
1137
cross section lines of soundings
SOUNDING LINES run in a SURVEY perpendicular to the FLOW of a STREAM and from BANK to BANK in a RIVER.
1138
cross wind
WIND which blows in a direction perpendicular to that of the motion of a moving object, relative to the EARTH's surface.
1139
cross wires (or hairs)
Wires or etched lines, at right angles, held at the FOCAL PLANE of an astronomical or sighting TELESCOPE. See also RETICLE.
1140
cruise line of sounding
See TRACK LINE OF SOUNDING.