Use the “Quick Search” box to locate your required term and/or definition. The following “Search conditions” can be used to refine your search: “Contains”, “Begins with”, “Ends with”, “Equals”, “Does not contain” or “Does not equal.”
Eng ID Term Definition
4541
satellite geodesy
See GEODESY.
4542
satellite navigation
A positioning method using satel­lites.
4543
satellite sounding
SOUNDING effected by means of instru­ments placed on board an ARTIFICIAL SATELLITE.
4544
satellite station
See ECCENTRIC STATION.
4545
saturation
The condition existing when the greatest possible amount of anything has been reached, as a magnetic substance which cannot be further magne... more
The condition existing when the greatest possible amount of anything has been reached, as a magnetic substance which cannot be further magnetized, or an electronic AID TO NAVIGATION which is being used by all the craft it can handle. At given temperature and pressure, state of moist air whose mixing ratio is such that the moist air can co-exist in neutral EQUILIBRIUM with an associated con­densed phase (liquid or solid) at the same temperature and pressure, the surface of separation being plane.
4546
Savonius rotor current meter
A low-threshold current speed sensor composed of two cylindrical VANES disposed to form an S-shaped rotor responsive to a wide SPECTRUM of h... more
A low-threshold current speed sensor composed of two cylindrical VANES disposed to form an S-shaped rotor responsive to a wide SPECTRUM of horizontal flow com­ponents.
4547
SBES
See SINGLE BEAM ECHO SOUNDER
4548
scale
A series of marks or GRADUATIONS at definite intervals. The ratio between the linear dimensions of a CHART, MAP, drawing, etc., and the actu... more
A series of marks or GRADUATIONS at definite intervals. The ratio between the linear dimensions of a CHART, MAP, drawing, etc., and the actual dimensions represented. It may be called chart scale or map scale when applied to a CHART or a MAP. In PHOTOGRAMMETRY, the ratio of a distance on a PHOTO­GRAPH to a corresponding distance on the ground. The scale of a PHOTOGRAPH varies from point to point becau­se of DISPLACEMENTS caused by TILT and RELIEF; but it is usually taken as f/H where f is the PRINCI­PAL DI­STANCE of the CAMERA and H is the HEIGHT of the CAMERA above mean ground elevation.
4549
scale: bar
A graduated line on a MAP, PLAN, PHOTO­GRAPH, or MOSAIC, by means of which actual ground distances may be determined. Also called graphic sc... more
A graduated line on a MAP, PLAN, PHOTO­GRAPH, or MOSAIC, by means of which actual ground distances may be determined. Also called graphic scale or linear scale.
4550
scale: border
A SCALE drawn along the BORDER OF CHART.
4551
scale: equivalent
The relationship which a small di­stance on a MAP, CHART or graphic bears to the cor­responding distance on the EARTH, expressed as an equiv... more
The relationship which a small di­stance on a MAP, CHART or graphic bears to the cor­responding distance on the EARTH, expressed as an equivalence.
4552
scale: fractional
See SCALE: NATURAL.
4553
scale: graphic
See SCALE: BAR.
4554
scale: large
A SCALE involving a relatively small reduction in size. A large scale CHART is one covering a small area. The opposite is SMALL SCALE. See S... more
A SCALE involving a relatively small reduction in size. A large scale CHART is one covering a small area. The opposite is SMALL SCALE. See SCALE: NATURAL.
4555
scale: latitude
The sub­divided east and west borders of a MERCATOR CHART into DEGREES and MINUTES. A vari­ant of the BAR SCALE, since a MINUTE of LATITUDE ... more
The sub­divided east and west borders of a MERCATOR CHART into DEGREES and MINUTES. A vari­ant of the BAR SCALE, since a MINUTE of LATITUDE is very nearly equal to a NAUTICAL MILE.
4556
scale: linear
See SCALE: BAR.
4557
scale: logarithmic
A SCALE graduated in the logarithms of uniformly-spaced consecu­tive numbers.
4558
scale: log factor
In HYDROGRAPHIC SURVEYS, a propor­tional DIAGRAM con­structed for the SCALE of the SURVEY sheet by means of which the LOG FACTOR can be quic... more
In HYDROGRAPHIC SURVEYS, a propor­tional DIAGRAM con­structed for the SCALE of the SURVEY sheet by means of which the LOG FACTOR can be quickly determined.
4559
scale: natural
The ratio between the linear dimensions of a CHART, drawing, etc., and the actual linear dimensions represented, expressed as a proportion. ... more
The ratio between the linear dimensions of a CHART, drawing, etc., and the actual linear dimensions represented, expressed as a proportion. Occasio­nally calledrepresen­tative fraction, fractio­nal scaleor numerical scale.
4560
scale: numerical
See SCALE: NATURAL.