Freshwater Flow from Caves at Chankanaab Park, Cozumel, Quintana Roo, Mexico
The freshwater forms a lense on top of the ocean water and discharges to the ocean through solution channels. One such solution channel is present in Chankanaab Park and is identified...
Measurements of Mean Velocity, Turbulence and Temperature in a Deflected, Heated Water Jet
A submerged heated water jet issuing from a vertical wall into a turbulent flow in a rectangular open channel is investigated experimentally to determine the mean velocity, turbulence...
Submerged Flow in Parshall Flumes
Recent data collected in a 1-foot Parshall flume located in the Bureau of Reclamation's hydraulic laboratory indicate a significant discontinuity in the discharge/submergence...
Hydrodynamic Dispersion: Estimation and Prediction
The dispersion of dissolved, nonreactive tracers in groundwater is governed by diffusion and advection. A.E. Scheidegger introduced the term dispersivity to describe the effect that a...
XLA -- The X-ray Large Array
The Naval Research Laboratory, Stanford University, and The University of Washington have proposed a large (100 square meters) array of X-ray detectors, called XLA, to be built at the...
21st Century Astronomical Observatories on the Moon
The advantages and disadvantages of building astronomical observatories on the Moon are described. In many ways, the Moon is a superior environment for astronomy to that of the Earth's...
The Physics of Sediment Transport by Wind and Water
Sponsored by a special projects committee under the guidance of the Sedimentation Technical Committee of ASCE. This collection contains noteworthy,...
Computers Board Equipment
Construction equipment is slowly being automated, either with remotely operated radio controls or by on-board computers that control repetitive tasks. Contractors in the United States...
Monitoring for Hazardous Waste Leaks
It is safer and cheaper to keep hazardous wastes out of the groundwater and the ground than to remove them. But better monitoring will be required. In this three-part article, the first...
Settlement of Residual Soils
The method previously suggested by the author in 1977 for calculating settlement of non-plastic to slightly plastic Piedmont Physiographic Region residual soils is reviewed. Additional...
Quantification of Net Shore-Drift Rates in Puget Sound and the Strait of Juan de Fuca
The objective in this study was to determine the annual rate of net shore-drift at selected sites within Puget Sound and the Strait of Juan de Fuca. These sites were selected based on...
Inlet Dredging Production as a Function of Sea State
This paper attempts to explain some of the inaccuracies and discrepancies in present methods of measuring dredging volumes and looks at a comparison of measured dredge volumes to natural...
Barbers Point, Oahu, Hawaii Deep Draft Harbor Monitoring Program
The deep draft harbor at Barbers Point, Oahu, Hawaii is located on the south side of the island. The 92 acre harbor basin is a product of over 25 years of planning and engineering. The...
Comparing Results of Wave Data from Two Recorders
In this paper two sets of wave measurements made in the same region using a pressure transducer and a wave rider bouy are compared. The same methods of analysis were applied to both the...
Practical Application of Acoustic Doppler Profilers
This paper discusses the advantages and limitations of the acoustic Doppler current profiler (ADCP), and it reviews some of the experience gained to date with the ADCP relevant to currents...
A Program to Acquire Deep Ocean Tsunami Measurements in the North Pacific
Deep ocean tsunami measurements are needed to provide open ocean boundary conditions for testing numerical models in hindcast studies, and for improving our understanding of tsunami generation...
Assessment of Pore Fluid Effects Using Flexible Wall and Consolidation Permeameters
Hydraulic conductivity tests were conducted on compacted soil specimens prepared at activities of 0. 36, 0. 60, 1. 00 and 1. 39 at a fine fraction of 25 percent. Na-montmorillonite, Georgia...
The Use of Cone Penetration Testing for Evaluation of Waste Disposal Alternatives
Geotechnical information derived from cone penetration testing (CPT) has been found to give increased accuracy in the siting of waste disposal facilities and in the design of remedial...
Instrumentation: Canal De Provence
A report describing the Canal de Provence and its specific hydraulic regulation system, 'dynamic regulation', is presented in another conference paper. The present...
Instrumentation for Automated Irrigation Systems
Remote site instrumentation sensors are vital components in automated irrigation systems, enabling measurement of water levels, flows and gate positions. It is desirable to select sensors...
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