scholarly journals NUMERICAL SIMULATION OF TSUNAMIS ORIGINATING IN THE PERU-CHILE TRENCH

1976 ◽  
Vol 1 (15) ◽  
pp. 60
Author(s):  
A.W. Garcia ◽  
H.L. Butler
Keyword(s):  
Present Report ◽  
Development Program ◽  
Numerical Code ◽  
Army Corps ◽  
Army Corps Of Engineers ◽  
The Pacific ◽  
The Subject ◽  
Chile Tsunami ◽  
Tsunami Amplitude

The U. S. Army Corps of Engineers has as an objective of its research and development program the determination of better harbor design criteria for tsunami protection. A previous report (Houston, et. al., 1975b) addressed the subject of tsunami vulnerability of the Pacific Coast of the continental United States to tsunamis originating in the Aleutian Trench. That report determined the variation in tsunami amplitude as a function of coastal distance due to a standard uplift source at different locations in the Aleutian Trench. The present report is a continuation of that study and addresses the subject of tsunami vulnerability along the same stretch of coast to tsunamis originating in the Peru-Chile Trench. In addition, modifications to the numerical code used in the previous report allowed the simulation of the Chile tsunami of May 22, 1960.

Recent Investigations in Fort Randall And Oahe Reservoirs, South Dakota

1949 ◽  
Vol 14 (4Part1) ◽  
pp. 300-310 ◽  
Author(s):  
Paul L. Cooper
Keyword(s):  
South Dakota ◽  
North Dakota ◽  
Development Program ◽  
Missouri River ◽  
Army Corps ◽  
Army Corps Of Engineers ◽  
Northern Limit ◽  
Corps Of Engineers ◽  
Basin Development ◽  
Under Construction

One of the consequences of the Missouri Basin development program will be the virtual obliteration of the Missouri River between Yankton, South Dakota, and the Montana-North Dakota line. The lakes to be created by the various dams proposed or under construction by the Army Corps of Engineers will inundate all but short stretches of the terraces on which are situated literally hundreds of fortified and unfortified earth-lodge villages and other, earlier, occupational sites. Situated near the northern limit of agriculture but heavily populated by sedentary, horticultural people for a period of several hundreds of years, this anthropologically fascinating area has been barely touched scientifically.

scholarly journals COASTAL WAVE MODELING FOR JETTY REHABILITATION AT COOS BAY, OREGON

2018 ◽  
pp. 89
Author(s):  
Lihwa Lin ◽  
Zeki Demirbilek
Keyword(s):  
High Energy ◽  
Army Corps ◽  
Army Corps Of Engineers ◽  
Wave Modeling ◽  
The Past ◽  
The Pacific ◽  
Coos Bay ◽  
Storm Wave ◽  
Energy Environment ◽  
North And South

Coos Bay Inlet, located on the Pacific coast of southwestern Oregon, is protected by dual jetties constructed in 1928. Because the inlet is exposing to high energy environment, both north and south jetties have deteriorated since the initial construction. Aging, erosion of foundation, lack of effective maintenance, and channel dredging in the past have accelerated the jetty deterioration. To ensure navigation safety, the U.S. Army Corps of Engineers is presently investigating the rehabilitation and redesign of jetties. This paper is focused on numerical storm wave modeling of the existing jetties to provide input forcing information to physical model and redesign of jetties.

scholarly journals On the endocranial cast of the adolescent sinanthropus skull

1933 ◽  
Vol 112 (776) ◽  
pp. 263-276 ◽  
Keyword(s):  
Present Report ◽  
Cranial Capacity ◽  
Detailed Report ◽  
Preliminary Trial ◽  
The Subject ◽  
Endocranial Volume

The cast to be described in this paper is that of the adolescent skull specimen from Locus E of the Choukoutien deposit, which has already been the subject of detailed report (Black, 1931). Earlier it was anticipated that the endocranial cast of both this specimen and that of the adult skull from Locus D would be described together, but as circumstances have retarded the work of restoration on the latter specimen, the present report will no longer be delayed. Cranial Capacity . Under this heading in the description of the skull ( loc. cit ., p. 45) it was estimated from the crude preliminary trial measurements that the endocranial volume of the restored specimen would be in excess of 1000 c. c. This prediction has, however, not been confirmed and the volume of the restored endocranial cast has now been determined with accuracy to be 964.4 ± 0.27 c. C. Since the accuracy of any determination of skull volume is largely dependent upon the method employed it may be of advantage to describe the technique by which the above result has been obtained.

Development of U.S. Army Corps of Engineers Engineering Guidance for the Barge Impact Design of Navigation Structures

2005 ◽  
Vol 1936 (1) ◽  
pp. 94-99 ◽  
Author(s):  
Robert C. Patev
Keyword(s):  
Development Program ◽  
Army Corps ◽  
Force Model ◽  
Army Corps Of Engineers ◽  
Corps Of Engineers ◽  
Extreme Loads ◽  
Power And Control ◽  
Wide Range ◽  
Guide Wall ◽  
And Control

U.S. Army Corps of Engineers (USACE) guidance, Engineering Technical Letter 1110-2-563, was developed for the design of navigation structures subject to barge impact loading. The new guidance was developed with the use of the results from full-scale experiments conducted under the Innovations for Navigation Projects Research and Development Program. An empirical impact force model was derived from the experimental data, and probabilistic procedures were developed to assist with the design and analysis of navigation structures for impact loads from transiting vessels. Uncertainties in loadings due to a wide range of events from both natural and human sources are crucial in the design of these critical structures. These uncertainties are defined in terms of the distributions for impact angles, velocities, and tow masses, as well as the need to account for loss of power and control events. The methods developed in the guidance for the design and analysis of these structures are focused on defining the return periods for the usual, unusual, and extreme loads for the navigation structures. An example of the probabilistic procedures developed in the guidance is highlighted for the design of an upper guide wall at a navigation project.

scholarly journals Federal Wetlands Jurisdiction – The Quagmire of Rapanos v. United States

2008 ◽  
Vol 2 ◽  
Author(s):  
G. W. Jones
Keyword(s):  
United States ◽  
The United States ◽  
Army Corps ◽  
Army Corps Of Engineers ◽  
Corps Of Engineers ◽  
The Past ◽  
Federal Jurisdiction ◽  
Foreign Commerce ◽  
Bodies Of Water

Federal jurisdiction over wetlands under the Clean Water Act (“CWA”) 1 has always been difficult to delineate. Wetlands, by definition can be difficult to classify as either water or land. The CWA attempts to regulate these areas; it prohibits discharge of material without a permit into “navigable waters,” which are in turn defined in section 1362(7) of the CWA as the “waters of the United States.” The Army Corps of Engineers 2 is charged with granting permits, and must make the determination of whether or not certain areas of wetlands fall within the jurisdiction of the CWA.3 The Corps has interpreted the phrase “navigable waters” very broadly to include waters “which are currently used, or were used in the past, or may be susceptible to use in interstate or foreign commerce.”4 The tributaries of any of these “waters” also fall within the Corps’ jurisdiction.5 Intrastate waters are covered if their “use, degradation or destruction . . . could affect interstate or foreign commerce.”6 Wetlands “adjacent” to waters, such as those described above, except waters that are themselves wetlands, also clearly fall within federal jurisdiction under the CWA.7 Jurisdictional problems arise however when there are bodies of water or wetlands close to but not directly connected to navigable waters. These areas may still have significant impact on the neighboring navigable waters if a developer fills them in, or an industrial site discharges pollutants into them. Thus the Corps of Engineers has sought to regulate some of these wetland areas, in order to hold true to the CWA’s overall goals “to restore and maintain the chemical, physical, and biological integrity of the Nation’s waters.

Determination of Horizontal and Vertical Control Points for Lunar Mapping

1962 ◽  
Vol 14 ◽  
pp. 107-111
Author(s):  
Marvin Q. Marchant
Keyword(s):  
Army Corps ◽  
Control Points ◽  
Army Corps Of Engineers ◽  
The Moon ◽  
Entire Surface ◽  
Vertical Control ◽  
The Earth ◽  
Map Service ◽  
Lunar Mapping

The determination of horizontal and vertical control points has been undertaken by the Army Map Service, U.S. Army Corps of Engineers, to assure that the entire surface of the Moon which is visible from the Earth may be shown in detail and with greater accuracy than that of any existing map.

scholarly journals JETTIES AT BODEGA HARBOR

2011 ◽  
Vol 1 (32) ◽  
pp. 52
Author(s):  
Orville T. Magoon ◽  
Donald D. Treadwell ◽  
Paul S. Atwood
Keyword(s):  
United States ◽  
United States Army ◽  
The United States ◽  
Army Corps ◽  
Army Corps Of Engineers ◽  
Construction Monitoring ◽  
The Pacific ◽  
Small Craft ◽  
The Pacific Ocean ◽  
Design Construction

To create and maintain a navigable entrance for small craft between the Pacific Ocean and the natural lagoon now referred to as Bodega Harbor, the construction of two rubble-mound jetties and the associated dredging of interior channels were authorized by the United States Congress in the late 1930s. The jetties were built by the United States Army Corps of Engineers in the early 1940s. Elements of the planning, design, construction, monitoring, and maintenance of the jetties are discussed herein.

Light Side of Design: Professional Vector

2020 ◽  
pp. 23-33
Author(s):  
Elena A. Zaeva-Burdonskaya ◽  
Yuri V. Nazarov
Keyword(s):  
Professional Practice ◽  
Wide Spectrum ◽  
Scientific Basis ◽  
Design Culture ◽  
Interdisciplinary Nature ◽  
Educational Programmes ◽  
Design Activities ◽  
The Subject ◽  
Light Side

This article addresses one of the most actively developing types of design activities – light design. The article comprises quotes of the leading Russian and foreign light design specialists published over the previous five years, as well as the authors’ own conclusions. The thoughts quoted in the article are sometimes opposite to each other and reflect the wide spectrum of professional practice. They reflect the initial opinions of analysts and experts which are often diverging. All of the specialists point at the interdisciplinary nature of the new profession, which imposes additional load on a designer overloaded enough already by the scope and speed of the problems being solved nowadays. The discussion of the new profession of light designer initiated on the pages of professional publications is especially important in view of the development of professional standards and standards of design and architectural education, as well as creation of new educational programmes based on various approaches to the subject in technical and humanitarian institutions. The goal of this article is to introduce light design into the field of fully legitimate sections of design culture, to define the authentic scientific basis of the new creative profession, to initiate a foundation for self-determination of the new synthetic area, which materially affects the state of the profession as a whole and the life standards of a wide variety of consumers. In order to reach the set goal, a comparative and analytical method of study was selected, which allows studying the problem to a large extent and from all angles and finding the ways of overcoming the challenges emerging in the area of the new activity.

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