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in subjects: "Pacific Ocean"

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(The fate of nuclides in natural water systems)

Our research at Yale on the fate of nuclides in natural water systems has three components to it: the study of the atmospheric precipitation of radionuclides and other chemical species; the study of the behavior of natural radionuclides in groundwater and hydrothermal systems; and understanding the controls on the distribution of radionuclides and stable nuclides in the marine realm. In this section a review of our progress in each of these areas is presented.

Date: January 1, 1989

Creator: Turekian, K.K. (Yale Univ., New Haven, CT (USA). Dept. of Geology and Geophysics)

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Preconcentration of plutonium radionuclides from natural waters. [Pu in Eniwetok ground water, lagoon and open ocean waters]

A large volume water sampler using manganese dioxide impregnated cartridges for the in situ separation of plutonium in sea water and ground water was studied. Plutonium concentrations obtained by this technique are compared with a radiochemical coprecipitation method. Consistent results were obtained between the two methods for water samples from the Pacific Ocean and Enewetak lagoon. Different results were noted from samples collected in the Enewetak reef and ground water stations. Using this … more

Date: February 1, 1978

Creator: Wong, K. M.; Nioshkin, V. E. & Jokela, T. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Literature review of the saturation state of seawater with respect to calcium carbonate and its possible significance for scale formation on OTEC heat exchangers

An investigation of available data on the saturation state of seawater with respect to calcium carbonate and its possible significance for scale formation on Ocean Thermal Energy Conversion (OTEC) heat exchangers has been carried out. Pertinent oceanographic data is lacking at or near potential OTEC sites for the calculation of the degree of saturation of seawater with respect to calcium carbonate. Consequently, only ''extrapolated'' saturation values can be used. These indicate that near surfa… more

Date: April 5, 1978

Creator: Morse, J. W.; de Kanel, J. & Craig, Jr., H. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Geotechnical Properties of Sediments From North Pacific and Northern Bermuda Rise

Studies of geotechnical properties for the Sub-seabed Disposal Program have been oriented toward sediment characterization related to effectiveness as a containment media and determination of detailed engineering behavior. Consolidation tests of the deeper samples in the North Pacific clays indicate that the sediment column is normally consolidated. The in-situ coefficient of permeability (k) within the cored depth of 25 meters is relatively constant at 10/sup -7/ cm/sec. Consolidated undrained… more

Date: January 1, 1980

Creator: Silva, A. J.; Laine, E. P.; Lipkin, J.; Heath, G. R. & Akers, S. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Paleomagnetism of the Quaternary Cerro Prieto, Crater Elegante, and Salton Buttes volcanic domes in the northern part of the Gulf of California rhombochasm

Deviating thermomagnetic directions in volcanics representing the second and fifth or sixth pulse of volcanism suggest that the Cerro Prieto volcano originated about 110,000 years B.P. and continued to be active intermittently until about 10,000 years ago.

Date: February 1, 1980

Creator: de Boer, J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Further study of the variability in the frequency of typhoon formation over the West Pacific ocean

This paper presents a study of the variability in the frequency of typhoon formation over the West Pacific ocean, emphasizing the effects of the large-scale sea-air system on the activity of typhoons. Some important relationships between typhoon formation and the climatological aspect of air-sea interaction are pointed out.

Date: 1980~

Creator: Ding, Yi-Hui & Reiter, Elmar R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Measurements of surface ocean carbon dioxide partial pressure during WOCE

Progress during the past year of research under Measurements of Surface Ocean Carbon Dioxide Partial Pressure During WOCE'' has been significant. As was described in our previous progress report, the startup phase of this research was severely frustrated by delays in the US WOCE Hydrographic Program (WHP), which in turn were caused by delays in the mid-life refit of the R/V Knorr. As a result the high latitude southeastern Pacific work (WHP lines P19S and P16S) originally scheduled for the 1990… more

Date: February 25, 1992

Creator: Weiss, R.F.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Shelf-sea ecosystems

An analysis of the food chain dynamics of the Oregon, Alaskan, and New York shelves is made with respect to differences in physical forcing of these ecosystems. The world's shelves are 10% of the area of the ocean, yield 99% of the world's fish catch, and may be a major sink in the global CO/sub 2/ budget.

Date: January 1, 1980

Creator: Walsh, J J

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Misspecification of trend in spatial random-function interpolation with application to oxidant mapping. Technical report No. 28

In epidemiological studies of the effects of air pollution it is desirable to obtain estimates of the exposure to various pollutants of persons living throughout a geographical region under study. It is typically the case that pollution levels are measured at only a few locations. The problems of interpolating these values and of determining the accuracy of interpolation are amenable to analysis by way of spatial stochastic models. Such models can lead to an optimal interpolation technique, in … more

Date: September 1, 1979

Creator: Faith, Ray & Sheshinski, Ruth

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Assessing the air pollution carrying capacity of the northern Puget Sound region: an application of TAPAS

The technique discussed, the Topographic Air Pollution Analysis System (TAPAS), was developed to provide valid information on the dispersion capability of the lower atmosphere in areas characterized by complex terrain features. A study was undertaken to assess the air quality (SO/sub 2/) impacts associated with energy development in the region and to determine the constraints on energy development due to regulated limitations on the amount of air quality degradation allowable in the area. The e… more

Date: September 1, 1980

Creator: Wood, M.C.; J.E., Childs & Marlatt, W.E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Oceanic CO sub 2 measurements for the WOCE hydrographic survey in the Pacific Ocean, 1990--1991: Shore based analyses during Legs 1--3

During the winter and spring of 1991 we made preparations for sampling on three legs of the US World Ocean Circulation Experiment in the Pacific Ocean. These transects, postponed from an original start date early in 1991, took place between May 31 to October 1. For the project, 1400 0.5 liter Pyrex sampling bottles were used for the collection of sea water. A second major pre-expedition task was the construction of a dual titration cell system of new design, as described in the original proposa… more

Date: January 1, 1992

Creator: Keeling, C.D.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Problems associated with transuranium determination of suspended solids in seawater samples

Particulate material collected by filtration from the north Equatorial Pacific Ocean has been analyzed for plutonium and other radionuclides. Different filter pore size, types of filter substrates, flow rates, and sample volumes were evaluated. Retention of /sup 239 +240/Pu was found to vary with the sample volume filtered and was not greatly affected by the type of filter substrate, flow rate, or porosity tested. About 7 +- 3% of the /sup 239 +240/Pu activity in north Equatorial Pacific surfac… more

Date: October 4, 1979

Creator: Wong, K. M.; Jokela, T. A. & Noshkin, V. E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

OTEC current study. Final report

Under a contract with the Applied Physics Laboratory of John Hopkins University, the firm Deep Oil Technology, Inc. planned and carried out a verification test on a model OTEC Cold Water Pipe to investigate the potential effect of some environmental forces in a true ocean environment. The dimensions of the model CWP were 5 feet in diameter and 800 feet long; the pipe was made up of 20-foot lengths of 3/16-inch steel pipe with flanges at either end that were bolted together to form the total tes… more

Date: March 1, 1979

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Geothermal energy: opportunities for California commerce. Phase I report

The potential geothermal direct-use energy market and its application to projects in California are assessed. Project identification effort is to be focused on those that have the highest probability for near-term successful commercial operations. Near-term herein means 2 to 5 years for project implementation. Phase I has been focused on defining and assessing: (1) the geothermal direct-use resources that are suitable for near-term utilization; and (2) the generic applications (municipal heatin… more

Date: December 1, 1981

Creator: Longyear, A.B. (ed.)

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Radioelement Studies in the Oceans. Progress Report, January 1-December 31, 1978

A bibliographic summary of reports published, submitted, in press or presented at meetings was included. A discussion of 3 cruises taken to collect samples from water, sediment cores, and plankton tows was also included. The geographical areas covered on these cruises were: (1) downwind and down-current from the U.S. Pacific Test Site, (2) across the equator in the Central Pacific, and (3) the Mid-Pacific Gyrie region. Maps are included. Samples were analyzed for a cesium 137, and plutonium on … more

Date: January 1, 1979

Creator: Bowen, V. T.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Ecological evaluation of Oakland Harbor Phase 3-38-foot composites relative to the Alcatraz Island Environs (R-AM)

The Water Resources Development Act of 1986 (Public Law 99--662) authorized the US Army Corps of Engineers (USACE) San Francisco District, to deepen and widen the navigational channels of the Oakland Inner Harbors to accommodate deeper-draft vessels. Battelle/Marine Sciences Laboratory (MSL) conducted a study for USACE to determine whether potential dredged sediments in Oakland Inner Harbor were suitable for open-water disposal, following the guidelines of the Draft Ecological Evaluation of Pro… more

Date: January 1, 1992

Creator: Mayhew, H. L.; Kohn, N. P.; Ward, J. A.; Word, J. Q. & Pinza, M. R. (Battelle/Marine Sciences Lab., Sequim, WA (United States))

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Geologic setting of massive sulfide deposits and hydrothermal vents along the southern Juan de Fuca Ridge

This report incorporates data from two cruises of the USGS vessel SP LEE: (1) L12-80-WF from 29 October to 13 November 1980, and (2) L11-81-WF from 4 to 15 September 1981. The 1980 cruise occurred long after the optimum weather window for this region. The natural results was that no photographic or sample stations could be attempted during nearly continuous gale- and storm-force winds, which twice forced the vessel to depart the work area for safety. A detailed bathymetric survey of a 35-km seg… more

Date: January 1, 1982

Creator: Normark, W. R.; Morton, J. L. & Delaney, J. R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Subseabed disposal program annual report, January-December 1978. Volume II. Principal investigator progress reports

The topics covered in this report include: geologic siting considerations for the disposal of radioactive wastes into submarine geologic formations; geologic assessment of the MPG-1 regions Central North Pacific; site mapping; geotechnical aspects of subsurface seabed disposal; heat transfer, thermal and fluid physics in the deep ocean sediments; mechanical response predictive capability; sediment-seawater interaction at 300/sup 0/C, 500 bars; stability of actinides in chloride media; cannister… more

Date: October 1, 1979

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Littoral processes: US Coast Guard Station, Fort Point, San Francisco

The US Coast Guard Station, Fort Point is located three-quarters of a nautical mile southeast of the Golden Gate Strait, the entrance to San Francisco Bay. The existing storm wave conditions at Fort Point Station pier make it extremely dangerous for the SAR crews to get on and off the Motor Life Boats at times requiring the vessels to be moored at the San Francisco Yacht Harbor about 1.5 miles east of the Fort Point Station. To mitigate these harsh working conditions the US Coast Guard is consi… more

Date: October 1, 1983

Creator: Ecker, R.M. & Whelan, G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Use of a United States mid-Pacific Island territory for a Pacific Island Repository System (PIRS): Extended summary

The concept of using a mid-ocean island for a geologic high-level waste repository was investigated. The technical advantages include geographical isolation and near-infinite ocean dilution as a backup to repository geological waste isolation. The institutional advantages are reduced siting problems and the potential of creating an international waste repository. Establishment of international waste repository would allow cost sharing, aid US nonproliferation goals, and assure proper disposal o… more

Date: August 1, 1987

Creator: Forsberg, Charles W.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Ocean floor sediment as a repository barrier: comparative diffusion data for selected radionuclides in sediments from the Atlantic and Pacific Oceans

Effective diffusion coefficients for selected radionuclides have been measured in ocean floor sediments to provide data for the assessment of barrier effectiveness in subseabed repositories for nuclear waste. The sediments tested include illite-rich and smectite-rich red clays from the mid-plate gyre region of the Pacific Ocean, reducing sediment from the continental shelf of the northwest coast of North America, and Atlantic Ocean sediments from the Southern Nares Abyssal Plain and the Great M… more

Date: January 1, 1985

Creator: Schreiner, F.; Sabau, C.; Friedman, A. & Fried, S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Historical /sup 14/C measurement from the Atlantic, Pacific, and Indian Oceans. Progress report, December 1, 1978-August 31, 1979

Between the years 1964 and 1974, over 1000 sea water samples were collected from various locations and depths to 4000 M. These samples were processed to recover inorganic carbon (as CO/sub 2/) for laboratory measurement of /sup 14/C. Aliquots of sea water, poisoned with mercuric chloride, were collected at the same time for total CO/sub 2/ measurement. During laboratory workup approximately 1/2 of the samples had small aliquots of CO/sub 2/ set aside for /sup 13/C//sup 12/C isotope ratio measur… more

Date: January 1, 1979

Creator: Fairhall, A.W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Air-quality-model update

The Livermore Regional Air Quality Model (LIRAQ) has been updated and improved. This report describes the changes that have been made in chemistry, species treatment, and boundary conditions. The results of smog chamber simulations that were used to verify the chemistry as well as simulations of the entire air quality model for two prototype days in the Bay Area are reported. The results for the prototype day simulations are preliminary due to the need for improvement in meteorology fields, but… more

Date: January 15, 1982

Creator: Penner, J.E. & Walton, J.J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Tsunami Risk Reduction for the United States: A Framework for Action

This document describes proposals for making communities better prepared and more resilient to catastrophic natural disasters like the Indian Ocean tsunami in 2006. Methods described include warning systems, data sharing, and land use decisions.

Date: December 2005

Creator: National Science and Technology Council (U.S.). Subcommittee on Natural Disaster Reduction.

Item Type: Text

Partner: UNT Libraries