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Total record count: 6269.

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Eng ID Term Definition
5241
survey: gravimetric
A SURVEY made to determine the ACCELERATION OF GRAVITY at various places on the EAR­TH's surface.
5242
survey: ground
A SURVEY made by ground methods, as distinguished from an AERIAL SURVEY. A ground survey may or may not include the use of PHOTOGRAPHS.
5243
survey: harbour
HYDROGRAPHIC SURVEY of a harbour area.
5244
survey: hydrographic
A SURVEY having for its princi­pal purpose the determina­tion of DATA relating to bodies of water. A hydrographic survey may consist of the ... more
A SURVEY having for its princi­pal purpose the determina­tion of DATA relating to bodies of water. A hydrographic survey may consist of the deter­mination of one or several of the following classes of DATA: DEPTH of water; confi­guration and NATURE OF THE BOTTOM; directions and force of CUR­RENTS; HEIGHTS and TIMES of TIDES and water stages; and location of topographic features and fixed objects for survey and naviga­tion purposes.
5245
survey: land
See SURVEY: CADASTRAL.
5246
survey: large scale
A HYDROGRAPHIC SURVEY at a LARGE SCALE. Large scale surveys are usually intended to furnish detailed information for dredging, or other type... more
A HYDROGRAPHIC SURVEY at a LARGE SCALE. Large scale surveys are usually intended to furnish detailed information for dredging, or other types of harbour improvement.
5247
survey: magnetic
A SURVEY conducted to measure the strength and direction of the EARTH'S MAGNETIC FIELD at specific points on or near the surface of the EART... more
A SURVEY conducted to measure the strength and direction of the EARTH'S MAGNETIC FIELD at specific points on or near the surface of the EARTH.
5248
survey: magnetometer
A SURVEY wherein the EARTH'S MAGNETIC FIELD is mapped by the use of a MAGNETOMETER.
5249
survey: new
See RESURVEY.
5250
survey: oceanographic
A study or examination of any physical, chemical, biologi­cal, geological or geophy­si­cal condition in the OCEAN, or any part of it. An exp... more
A study or examination of any physical, chemical, biologi­cal, geological or geophy­si­cal condition in the OCEAN, or any part of it. An expedition to gather DATA, samples or information to conduct such studies or examination.
5251
survey: offshore
HYDROGRAPHIC SURVEYS conducted in areas beyond a certain distance from the shore, e.g. in the HIGH SEAS.
5252
survey: photogrammetric
A SURVEY utilizing either TERRESTRIAL or AERIAL PHOTOGRAPHS.
5253
survey: preliminary
See SURVEY: RECONNAISSANCE.
5254
survey: reconnaissance
A hasty preliminary SURVEY of a region made to provide some advance information regar­ding the area which may be useful, pending the execu­t... more
A hasty preliminary SURVEY of a region made to provide some advance information regar­ding the area which may be useful, pending the execu­tion of more complete SURVEYS. Also called preliminary survey.
5255
survey: revisory
Hydrographic surveys conducted for the revision of charts including checking depths, aids to navigation, existence of land and water feature... more
Hydrographic surveys conducted for the revision of charts including checking depths, aids to navigation, existence of land and water features, and any changes or additions such as new features con­structed that are important to the mariner. A revisory survey is not considered to be a detailed resurvey.
5256
survey: running
A HYDROGRA­PHIC SURVEY in which the greater part of the work is done from the ship steaming along the COAST. A LINE OF SOUNDING is run on th... more
A HYDROGRA­PHIC SURVEY in which the greater part of the work is done from the ship steaming along the COAST. A LINE OF SOUNDING is run on the COURSE MADE GOOD and any ad­ditional information of a hydrogra­phic nature which can be obtai­ned whilst under way, is col­lec­ted.
5257
survey: sketch
A HYDROGRA­PHIC SURVEY made (due to lack of time or faciliti­es) to a lower degree of ACCURACY and detail than the chosen SCALE would normal... more
A HYDROGRA­PHIC SURVEY made (due to lack of time or faciliti­es) to a lower degree of ACCURACY and detail than the chosen SCALE would normally indi­cate.
5258
survey: sonar
HYDROGRAPHIC SURVEY using a SONAR.
5259
survey: tagline
A LARGE SCALE SURVEY made by employ­ing a TAGLINE. An accurate method sometimes adopted in river and harbour work.
5260
survey: topographic
A SURVEY which has for its major purpose the deter­mination of the configuration (RELI­EF) of the surface of the EARTH and the location of n... more
A SURVEY which has for its major purpose the deter­mination of the configuration (RELI­EF) of the surface of the EARTH and the location of natural and artificial objects thereon.