History and Present Status of Regulation and Regulation Studies of Water Levels and Flows on the Great Lakes

Potential Benefits of Great Lakes Level and Flow Regulation

Regulation of Great Lakes Levels and Flows

Effects of Diversions on the Great Lakes

Computing the Barometric Efficiency of a Well
The barometric efficiency of a well may be determined from the slope of a graph of ∑ΔB against ∑ΔW, in which ∑ΔB is the arithmetical summation of the incremental changes, ΔB, of the atmospheric...

Inflatable Dams
An inflatable dam provides an inexpensive and simple device for controlling the water level in a river, canal, or reservoir. It can operate under hydrodynamic conditions satisfactorily...

Land Modification for Efficient Use of Water
For any water management practice to function efficiently, the surface of the land must be properly prepared. The following methods are considered: land grading for surface drainage in...

Evaluation of Accuracy of Precise Leveling
Three sources of errors in precise leveling are described: (1) Errors due to rod readings by estimation to 0.10 of the rod division and with the aid of a planoparallel micrometer; (2)...

Construction Planning for a Sea-Level Panama Canal
The conversion of the existing Panama Lock Canal to sea level will be the largest earthmoving project ever undertaken. Depending on the final cross section selected, it will require the...

Water-Level Fluctuations and Flow in Tidal Inlets
Equations are derived to describe the water motion in a tidal inlet connecting the ocean with a relatively small basin. The boundary conditions considered are the ocean tide and fresh...

Phreatophytes - Water Use and Potential Water Saving
Salvage of water consumed by phreatophytes of low economical value has long been considered, and increasing emphasis is being placed on this source of water in the arid and semiarid West....

Ground-Water Models Solved by Digital Computer
Ground-water data may be stored conveniently on punched cards or magnetic tapes. Ground-water problems may be solved by analyzing the stored data using digital-computer programs that describe...

Yearly Sea Level Variations for the United States
Yearly mean sea level series from 44 Coast and Geodetic Survey (U. S. Environmental Science Service Administration) tide stations are analyzed. An empirical classification is obtained...

Computer Program for Leveling Resource Usage
A computer program is presented that is to perform the task of leveling resource usage for a project using as input the critical path method solution for event times and floats. The manipulations...

Vertical Control on the Great Lakes
A chronological listing of the more important planes of reference that have been used by the United States Government on the Great Lakes in charting operations, dredging, waterway construction,...

Educational Requirements for Water Resources Engineers
Water resource development is the provision of an ample supply for all purpose of high quality water at a reasonable price. The explosion in water use and population is demanding the continued...

Regulation of the Caspian Sea
Soviet plans have been completed for the construction of a dam 427 km long across the Caspian Sea, in a further attempt to solve the adverse hydrologic conditions of its basin and to halt...

Nuclear Excavation of a Sea-Level Isthmian Canal
Data on high-explosive and nuclear cratering events are combined with 1947 Route Surveys (Panama Canal Company) to estimate the number and yield of the nuclear devices required to excavate...

Effect of Gradient on Jet Transport Runway Lengths
Investigation of the effects of runway gradients varying from 0% to 1 1/2% for airport sites from sea level to 6,000 ft over the temperature range of 30○ F to 100○F indicate that, for...

Measuring the Precision of a Level
Differential leveling procedures, as well as an awareness of sources of error in the level rod, the observer, and the atmosphere are involved in determining the reasonable accuracy to...

 

 

 

 

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