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Continental margin atmospheric climatology and sea level (Historical setting 1974--1975)

Description: From the many continental shelf dynamics studies which have been made in the past decade, it has become increasingly apparent that a detailed analysis of continental margin waters can only be accomplished with an appreciation of the coastal meteorology. Fortunately, coastal meteorological and, in addition, coastal sea level data have been archived and thus provide coastal oceanographers with inexpensive, priceless and complimentary data sets. Past coastal sea level studies have demonstrated that these data contain not only tidal data but also sub-inertial frequency information which measurably details shelf reesponse to atmospheric forcing. Additionally, a particular region, such as the South Atlantic Bight, can be characterized by the statistics of the temporal spectra of both data sets as well by the alonshore coherences which may exist between stations. In this study, atmospheric wind and pressure have been examined and correlated with coastal sea level changes at various coastal stations along the South Atlantic Bight.
Date: February 1, 1978
Creator: Pietrafesa, L.J.; D'Amato, R.; Gabriel, C. & Sawyer, R.J. Jr.
Partner: UNT Libraries Government Documents Department

Onslow Bay physical/dynamical experiments, summer, 1976. Volume II. Data products

Description: Data from measurements of water current velocity, temperature, and pressure at various depths of the South Atlantic continental shelf and sea level in the vicinity of Onslow Bay, North Carolina during the summer of 1976 are presented graphically.
Date: February 1, 1978
Creator: Pietrafesa, L.J.; D'Amato, R.; Gabriel, C.; Sawyer, R.J. Jr.; Brooks, D.A. & Blankinship, P.
Partner: UNT Libraries Government Documents Department

Energy study of ship-transportation systems: a progress briefing by Booz, Allen Transportation Consulting Division

Description: The study objectives are presented. Summary information on energy consumed and required in the marine transportation sector are included. Model outputs, a logic flowchart, information on a cost analysis approach, and fuel consumption and life-cycle cost methodologies are presented. Information is given on Task II (Potential Case Studies) and on Task III (Conservation Research and Development). Additional information on bottom-cycle applications and fuel consumption of diesel engines is given. (MCW)
Date: February 2, 1977
Partner: UNT Libraries Government Documents Department

Operations research and systems analysis of geopressured/geothermal resources in Louisiana. Final report for initiation project

Description: The development activities for a plan for Louisiana's participation in a Gulf Coast regional research and systems analysis activity. In developing preliminary planning scenarios heavy emphasis was placed on data describing the resource base. The scenarios are produced using a computer-oriented planning program that is code-named GEODEV. Examples of development scenarios for four fairways in Louisiana are included in an appendix. Progress in identification of decision makers, a state-wide advisory group, coordination of activities with Texas, and regional operations research activity. Also included in appendices are: communications to identify Decision Makers, Report to Governor and Legislature on Status of GP/GT Energy in Louisiana, and a paper presented jointly by Louisiana and Texas Project Team at Third Geopressured Geothermal Energy Conference, University of Southwestern Louisiana, Lafayette, Louisiana. (MHR)
Date: February 1, 1978
Creator: Wilkins, B. Jr.
Partner: UNT Libraries Government Documents Department

Onslow Bay physical/dynamical experiments, summer 1976

Description: Methods used for measurements of water current velocity, temperature gradients, pressure gradients, and sea level in the vicinity of Onslow Bay, North Carolina are discussed. Some data obtained during the summer of 1976 are included.
Date: February 1, 1978
Creator: Pietrafesa, L. J.; D'Amato, R.; Gabriel, C.; Sawyer, R. J. Jr.; Brooks, D. A. & Blankinship, P.
Partner: UNT Libraries Government Documents Department

Calculation of chemical equilibrium between aqueous solution and minerals: the EQ3/6 software package. [In FORTRAN extended 4. 6 for CDC6600 and 7600]

Description: The newly developed EQ/36 software package computes equilibrium models of aqueous geochemical systems. The package contains two principal programs: EQ3 performs distribution-of-species calculations for natural water compositions; EQ6 uses the results of EQ3 to predict the consequences of heating and cooling aqueous solutions and of irreversible reaction in rock--water systems. The programs are valuable for studying such phenomena as the formation of ore bodies, scaling and plugging in geothermal development, and the long-term disposal of nuclear waste. EQ3 and EQ6 are compared with such well-known geochemical codes as SOLMNEQ, WATEQ, REDEQL, MINEQL, and PATHI. The data base allows calculations in the temperature interval 0 to 350{sup 0}C, at either 1 atm-steam saturation pressures or a constant 500 bars. The activity coefficient approximations for aqueous solutes limit modeling to solutions of ionic strength less than about one molal. The mathematical derivations and numerical techniques used in EQ6 are presented in detail. The program uses the Newton--Raphson method to solve the governing equations of chemical equilibrium for a system of specified elemental composition at fixed temperature and pressure. Convergence is aided by optimizing starting estimates and by under-relaxation techniques. The minerals present in the stable phase assemblage are found by several empirical methods. Reaction path models may be generated by using this approach in conjunction with finite differences. This method is analogous to applying high-order predictor--corrector methods to integrate a corresponding set of ordinary differential equations, but avoids propagation of error (drift). 8 figures, 9 tables.
Date: February 1, 1979
Creator: Wolery, T.J.
Partner: UNT Libraries Government Documents Department

Subsea nuclear power generating stations for offshore oil production operations. Preliminary safety and licensing information document

Description: This document presents preliminary safety and licensing information relating to the manufacture, installation, and operation of small subsea nuclear generating stations in remote offshore locations, and the associated onshore base-site activities of reactor refueling and system refurbishment at 4-year intervals. The purpose of the proposed facilities is to provide a subsea power capability for offshore oil production operations in areas where surface conditions, water depths, or other environmental constraints may preclude the use of surface-mounted power sources. This will provide the capability to achieve the maximum recovery of petroleum resources from the U.S. frontier areas. Summary descriptions of a typical subsea nuclear generating station and a typical base site-facility are presented. General safety and licensing considerations are discussed, and a representative schedule of licensing activities is outlined.
Date: February 15, 1977
Partner: UNT Libraries Government Documents Department

Evaluation of materials exposed to scale-control/nozzle-exhaust experiments at the Salton Sea geothermal field

Description: The erosion, corrosion, and stress corrosion cracking (SCC) of Ti-, Co-, Ni-, and Fe-base alloys specimens that were used in scale-control tests performed at the Salton Sea geothermal field were evaluated. Specimens were exposed to high-velocity, two-phase, 104{sup 0}C nozzle exhaust that was produced by expanding acidified hypersaline, highly mineralized brine to atmospheric pressure through converging-diverging nozzles. The exposed specimens were evaluated using surface profilometer traces, light microscopy, scanning-electron microscopy, and energy dispersive spectroscopy ananlysis. The observed degradation was attributed largely to synergistic effects of erosion, corrosion, and stress. A principal mode of degradation appeared to be the formation and growth of corrosion-assisted erosion cavities; it was proposed that surface repassivation kinetics play a key role in the development of these cavities. It was also suggested that scale deposits on the metal surface may either alter the mode of attack or act as protective barriers. It was concluded that, of the potential turbine-blade materials tested, the Ti-base alloys exhibited the best combination of resistance to erosion, corrosion, and SCC.
Date: February 8, 1979
Creator: Goldberg, A. & Kershaw, R.P.
Partner: UNT Libraries Government Documents Department

Standby Conservation Plan No. 1: emergency weekend gasoline sales restrictions. Economic analysis

Description: The Emergency Weekend Sales Restrictions Plan has been designed to conserve gasoline and diesel fuel normally used for social and recreational purposes. The plan would authorize the Secretary of Energy to impose restrictions on the retail sale of motor fuels during weekend hours, defined as Friday noon to Sunday midnight. Only certain types of commercial vehicles and emergency vehicles could purchase fuel during these hours. The implementation of the measure is examined relative to a baseline economy characterized by a 15% petroleum shortfall. It is estimated that the measure would save 246,000 barrels per day of motor fuels, principally gasoline. Because the saved fuel can be made available to other sectors of the economy that are less petroleum intensive, it is projected that GNP would rise by approximately $7 billion as a result of the measure. The impact of the measure would vary sharply from one sector of the economy to another, however, with some industries experiencing losses in revenue. The cost of imposing the measure is preliminarily estimated at $5.2 million for nine months.
Date: February 1, 1979
Partner: UNT Libraries Government Documents Department

Near-field interactions

Description: To approach the subject of high level nuclear waste disposal in deep ocean sediments it is convenient to differentiate between processes occurring in a near field environment, that region arbitrarily defined as lying between the canister surface and the maximum extent of the 100/sup 0/C isotherm, and those which occur at lower temperatures and beyond the influence of intense radiation. A variety of considerations related to the chemistry of seawater-sediment mixtures suggests that about 200/sup 0/C is the maximum temperature advisable in the near field environment. Results of a coupled fluid flow - thermal transport computer model show the maximum convection rate adjacent to a canister having surface temperature of 200/sup 0/C is 0.3 m/100 years, and that this velocity is halved with the passage of each thermal half life of the assumed waste form (30 years). Based on this convective model, it follows that compounds formed in the near field environment during the first thousand years following emplacement would be restricted to a region lying within two meters of the canister surface.
Date: February 1, 1979
Creator: Krumhansl, J.L. & McVey, D.F.
Partner: UNT Libraries Government Documents Department

Geothermal development and the Salton Sea

Description: The relationship of the Salton Sea, a key element of the Imperial Valley water system, to potential geothermal development in that region is studied. The effects of direct discharge of brines into the Sea are discussed along with the use of Salton Sea water for cooling the geothermal power plants. Methods for controlling the salinity of the Salton Sea are described. (MOW)
Date: February 1, 1976
Creator: Goldsmith, M.
Partner: UNT Libraries Government Documents Department

Niland Test Facility Startup Evaluation Task Force

Description: Task force recommendations that are considered essential for proper start up of the Niland Test Facility are presented, along with those desirable for start up, but not essential and those desirable during operation but having no direct effect on start up. (MHR)
Date: February 1, 1976
Partner: UNT Libraries Government Documents Department

Preliminary seabed disposal modeling studies

Description: In order to evaluate the fluid flow, heat transfer, and ion migration rates within a postulated sub-seafloor waste disposal site, preliminary calculations and computer aided simulations were performed. A base case site description was formulated and a representative set of physical parameters were defined. This information was used in an advanced transport computer code developed by Intera Environmental Consultants to simulate, in detail, site behavior. The simulation studies were divided into an initial short term heat transfer study (Case 1) followed by a long term ion migration simulation (Case 2). Results for the Case 1 heat transfer studies showed that very high canister surface temperatures were reached within a few days and that a convective flow cell was clearly established; however, its effect was minimal in lowering canister temperatures. In the second case, the calculations showed that the transient convective flow cell strongly influences ion migration rates; however, this effect decreases directly as the heat generation rate of the waste in the canister decays. This mechanism for ion transport becomes unimportant after about 1000 years.
Date: February 1, 1979
Creator: Nuttall, H.E.
Partner: UNT Libraries Government Documents Department

Geophysical and geochemical models of the Earth's shields and rift zones

Description: This report summarizes a collection of, synthesis of, and speculation on the geophysical and geochemical models of the earth's stable shields and rift zones. Two basic crustal types, continental and oceanic, and two basic mantle types, stable and unstable, are described. It is pointed out that both the crust and upper mantle play a strongly interactive role with surface geological phenomena ranging from the occurrence of mountains, ocean trenches, oceanic and continental rifts to geographic distributions of earthquakes, faults, and volcanoes. On the composition of the mantle, there is little doubt regarding the view that olivine constitutes a major fraction of the mineralogy of the earth's upper mantle. Studies are suggested to simulate the elasticity and composition of the earth's lower crust and upper mantle.
Date: February 25, 1977
Creator: Chung, D. H.
Partner: UNT Libraries Government Documents Department