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Total record count: 6269.

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Eng ID Term Definition
4881
sounding: formation
SOUNDING carried out by two or more ships in formation searching for a reported danger.
4882
sounding: hand lead
SOUNDING with HAND LEAD. Hand lead soundings are usually taken from a slowly moving ves­sel.
4883
sounding: line of
See LINE OF SOUNDING.
4884
sounding(s): minus
(U.S. terminology). SOUNDINGS that reduce to HEIGHT above the SOUNDING DATUM (plane of reference) when corrected for HEIGHT OF TIDE. Minus s... more
(U.S. terminology). SOUNDINGS that reduce to HEIGHT above the SOUNDING DATUM (plane of reference) when corrected for HEIGHT OF TIDE. Minus soundings are shown on the SMOOTH SHEET preceded by a minus sign.
4885
sounding(s): no bottom
(U.S. terminology). SOUNDINGS where the BOTTOM was not reached because the general DEPTHS were too great for the method of measurement.
4886
sounding: wire
SOUNDING with a SOUNDING MACHINE. To obtain a vertical wire sounding the ship or boat must be stopped while the wire is running out.
4887
sounding(s): zero
(U.S. terminology). SOUNDINGS that reduce to HEIGHTS above the SOUNDING DATUM but shown on the SMOOTH SHEET as zero soundings regardless of ... more
(U.S. terminology). SOUNDINGS that reduce to HEIGHTS above the SOUNDING DATUM but shown on the SMOOTH SHEET as zero soundings regardless of HEIGHT. A practice now discontinued. See SOUNDING: MINUS.
4888
sounding apparatus
Any apparatus designed for use in measuring the DEPTH of water.
4889
sounding board
See FIELD BOARD.
4890
sounding book
See SOUNDING RECORD.
4891
sounding bottle
A strong metal container fitted with non-return valves for taking WATER SAMPLES at great DEPTHS. See also WATER BOTTLE.
4892
sounding datum
See DATUM.
4893
sounding interval
The interval between successive SOUNDINGS along a LINE OF SOUNDING. See DENSITY OF SOUNDINGS.
4894
sounding lead
A LEAD used for determining DEPTH of water. Also referred to as plummet.
4895
sounding line
A LINE OF SOUNDING. A LEAD LINE.
4896
sounding machine
An instrument for measuring DEPTH of water, consisting essentially of a reel of wire to one end of which is attached a WEIGHT which carries ... more
An instrument for measuring DEPTH of water, consisting essentially of a reel of wire to one end of which is attached a WEIGHT which carries a device for record­ing the DEPTH. A crank or motor is provided for reeling in the wire.
4897
sounding mark
(British terminology). A MARK erected for CONTROL of SOUNDING; its POSITION is determined by plotting using INTERSECTIONS from sextant FIXES... more
(British terminology). A MARK erected for CONTROL of SOUNDING; its POSITION is determined by plotting using INTERSECTIONS from sextant FIXES.
4898
sounding pole
A graduated pole or rod used for SOUN­DING in SHALLOW WATER. Also called sounding rod.
4899
sounding record
Bound record book in which all of the DATA taken on a HYDROGRA­PHIC SURVEY are entered, and become part of the permanent records of the SUR... more
Bound record book in which all of the DATA taken on a HYDROGRA­PHIC SURVEY are entered, and become part of the permanent records of the SURVEY. Also called sounding book.
4900
sounding rod
See SOUNDING POLE.