Operation REDWING. Project 1.9a. Direct Water-Wave Measurements. Pacific Proving Grounds, May - July 1956. Extracted Version
Abstract
The direct-wave group of Project 1.9 had as its objectives the gathering and analyzing of water-wave data from the Bikini and Eniwetok lagoons. The data was required (1) to improve the ability to predict wave effects from operational use of nuclear weapons, and! (2) to determine safety criteria for future test operations. The water-wave time-height history was to be determined at various ranges from ground zero. Where significant, the terminal effects were to be measured as the waves inundated the reefs and islands of the atoll. The data was to be summarized, integrated with data from Operation Castle (higher yields, identical physical topography), and compared to present theories and concepts of impulsively generated waves. During Operation Redwing, as in previous test series, principal observations were made by means of bottom-pressure-versus-time recorders of several types adapted to different locations, and by means of technical photography. Data from this operation, when correlated with all previous pertinent data, has permitted considerable progress in this investigation and in the understanding of all of the various facets of wave systems, but particularly has this been so about the dimensions and the relative importance of the parameters of generation, the separability of observed wave systems, the reflections, and the inundation of shorelines. A scaling law for wave height versus range has been derived, which considers the water depth generation as well as yield. Possibly, the most significant result at this stage of the continuing investigation has been the demonstration of the limited applicability, for purposes of wave predictions, of wave data collected to date, and from this, recommendations are made for a more conclusive program for further research.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 15, 1981
- Accession Number
- ADA995150
Entities
People
- L. W. Kidd