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Significance and Use
5.1 This is a general practice intended to give direction in the selection of depth measuring procedures and equipment for use under a wide range of conditions encountered in surface water bodies. Physical conditions at the measuring site, the quality of data required, and the availability of appropriate measuring equipment govern the selection process. A step-by-step procedure for actually obtaining a depth measurement is not discussed. This practice is to be used in conjunction with a practice on positioning techniques and another practice on bathymetric survey procedures to obtain horizontal location and bottom elevations of points on a water body.
Procedure A—Manual Measurement
6 through 11
Procedure B—Electronic Sonic-Echo Sounding
12 through 13
Procedure C—Electronic Nonacoustic Measurement
14 through 15
The text specifies depth measuring terminology, describes measurement of depth by manual and electronic equipment, outlines specific uses of electronic sounders, and describes an electronic procedure for depth measurement other than using sonar.
1.4 This practice pertains to depth measurement in quiescent or low-velocity flow. For depth measurement related to stream gaging see Test Method D3858. For depth measurements related to reservoir surveys see Guide D4581.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1129 Terminology Relating to Water
D3858 Test Method for Open-Channel Flow Measurement of Water by Velocity-Area Method
D4410 Terminology for Fluvial Sediment
D4581 Guide for Measurement of Morphologic Characteristics of Surface Water Bodies
ICS Number Code 13.060.10 (Water of natural resources)