 | North Carolina. Division of Mineral Resources - 1899 - 812 Seiten
...comparatively smooth, and moreover the indications are that it will hold nearly as well for ice-covered rivers. The single-point method consists in holding the meter...velocity-curves show that the thread of mean velocity generally occurs at from 0.5 to 0.7 of the total depth. In general practice the thread of mean velocity... | |
 | 1905 - 1360 Seiten
...not apply. The methods of obtaining velocity with the current meters which are in general use ma}7 be grouped into three classes: Single point, multiple...of the thread of mean velocity, or at an arbitrary deptli for which the coefficient for reducing to mean velocity has been determined. Extensive experiments... | |
 | 1906 - 1176 Seiten
...velocity, and the bottom velocity. This method may be modified by obscrving at 0.2, 0.6, and 0.8 depth. The single-point method consists in holding the meter...the depth of the thread of mean velocity, or at an arhitrary depth for which the coefficient for reducing to mean velocity has been determined. Extensive... | |
 | Geological Survey (U.S.) - 1907 - 880 Seiten
...velocity, and the bottom velocity. The method may be modified by observing at 0.2, 0.6, and 0.8 depth. The single-point method consists in holding the meter...velocity-curves show that the thread of mean velocity generally occurs at from 0.3 to 0.7 of the total depth. In general practice the thread of mean velocity... | |
 | 1910 - 1010 Seiten
...rivers. It is very extensively used in the regular practice of the United States Geological Survey. The single-point method consists in holding the meter...for reducing to mean velocity has been determined or must be assumed. Extensive experiments by means of vertical velocity curves show that the thread... | |
 | Geological Survey (U.S.) - 1911 - 602 Seiten
...regular practice of the United States Geological Survey. In the single-point method the meter is held either at the depth of the thread of mean velocity...for reducing to mean velocity has been determined or must be assumed. In general practice the thread of mean velocity has been found to be located at... | |
 | 1917 - 968 Seiten
...regular practice of the United States Geological Survey. In the single-point method the meter is held either at the depth of the thread of mean velocity...for reducing to mean velocity has been determined or must be assumed. Extensive experiments by means of vertical velocity curves show that the thread... | |
 | 1908 - 1444 Seiten
...velocity, and the bottom velocity. The method may be modified by observing at 0.2, 0.6, and 0.8 depth. The single-point method consists in holding the meter...thread of mean velocity or at an arbitrary depth for wlu'ch the coefficient for reducing to mean velocity has been determined. Extensive experiments by... | |
 | Geological Survey (U.S.) - 1911 - 1048 Seiten
...rivers. It is very extensively used in the regular practice of the United States Geological Survey. The single-point method consists in holding the meter...the thread of mean velocity or at an arbitrary depth WATER-SUPPLY PAPER 269 PLATE II 1 SMALL PRICE CURRENT METERS. for which the coefficient for reducing... | |
 | Charles Blaney Breed, George Leonard Hosmer - 1908 - 476 Seiten
...In the SINGLE.POINT METHOD the meter is held at the depth of the thread of mean velocity, or at some depth for which the coefficient for reducing to mean velocity has been determined. The most common method of this kind is the 0.6 depth method, this being approximately the depth of... | |
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The single-point method consists in holding the meter either at the depth of the thread of mean velocity or at an arbitrary depth for which the coefficient for reducing to mean velocity has been determined or must be assumed. Extensive experiments by... 
