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in publisher: "Colorado Univ., Boulder, CO United States"  
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Thermohaline circulations and global climate change

Description: Thermohaline Circulations and Global Climate Change'' is concerned with investigating the hypothesis that changes in surface thermal and hydrological forcing of the North Atlantic, changes that might be expected to accompany CO{sub 2}-induced global warming, could result in ocean-atmosphere interactions' exerting a positive feedback on the climate system. Because the North Atlantic is the source of much of the global ocean's reservoir of deep water, and because this deep water could sequester l… more
Date: January 1, 1992
Creator: Hanson, H. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermohaline circulations and global climate change

Description: This report discusses research activities conducted during the period 15 January 1992--14 December 1992. Thermohaline Circulations and Global Climate Change is concerned with investigating the hypothesis that changes in surface thermal and hydrological forcing of the North Atlantic, changes that might be expected to accompany C0[sub 2]-induced global warming, could result in ocean-atmosphere interactions' exerting a positive feedback on the climate system. Because the North Atlantic is the sour… more
Date: January 1, 1992
Creator: Hanson, H. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermohaline circulations and global climate change. Annual progress report No. 2, [15 January 1991--14 January 1992]

Description: ``Thermohaline Circulations and Global Climate Change`` is concerned with investigating the hypothesis that changes in surface thermal and hydrological forcing of the North Atlantic, changes that might be expected to accompany CO{sub 2}-induced global warming, could result in ocean-atmosphere interactions` exerting a positive feedback on the climate system. Because the North Atlantic is the source of much of the global ocean`s reservoir of deep water, and because this deep water could sequester… more
Date: March 1, 1992
Creator: Hanson, H. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optimal eigenvalue computation on distributed-memory MIMD multiprocessors

Description: Simon proves that bisection is not the optimal method for computing an eigenvalue on a single vector processor. In this paper, we show that his analysis does not extend in a straightforward way to the computation of an eigenvalue on a distributed-memory MIMD multiprocessor. In particular, we show how the optimal number of sections (and processors) to use for multisection depends on variables such as the matrix size and certain parameters inherent to the machine. We also show that parallel multi… more
Date: October 1, 1992
Creator: Crivelli, S. & Jessup, E. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Thermohaline circulations and global climate change. Annual progress report no. 3, January 15, 1992--December 14, 1992

Description: This report discusses research activities conducted during the period 15 January 1992--14 December 1992. Thermohaline Circulations and Global Climate Change is concerned with investigating the hypothesis that changes in surface thermal and hydrological forcing of the North Atlantic, changes that might be expected to accompany C0{sub 2}-induced global warming, could result in ocean-atmosphere interactions` exerting a positive feedback on the climate system. Because the North Atlantic is the sour… more
Date: December 1, 1992
Creator: Hanson, H. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A programming paradigm for distributed-memory computers

Description: One of the problems that arises in programming a multicomputer is the effective partitioning of the work into tasks and the assigning of those tasks to the processors. We will present a programming paradigm as a method of structuring the algorithms, allowing us to identify and separate programming phases. This paradigm allows us to develop a general software tool for dynamically allocating work to the processors while hiding many details of load balancing. Our paradigm consists of four phases: … more
Date: December 30, 1992
Creator: Crivelli, S. & Jessup, E. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The Global Climatology Network Precipitation data

Description: Several years ago, in response to growing concern about global climate change, the US National Climatic Data Center and the Carbon Dioxide Information Analysis Center undertook an effort to create a baseline global land surface climate data set called the Global Historical Climatology Network (GHCN, Vose et al., 1992). GHCN was created by merging several large existing climate data sets into one data base. Fifteen separate data sets went into the creation of the GHCN version 1.0. GHCN version 1… more
Date: August 1, 1993
Creator: Peterson, T. C.; Easterling, D. R.; Vose, R. S. & Eischeid, J. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Optimal eigenvalue computation on a mesh multiprocessor

Description: In this paper, we compare the costs of computing a single eigenvalue of a symmetric tridiagonal matrix by serial bisection and by parallel multisection on a mesh multiprocessor. We show how the optimal method for computing one eigenvalue depends on such variables as the matrix order and parameters of the multiprocessor used. We present the results of experiments on the 520-processor Intel Touchstone Delta to support our analysis.
Date: December 31, 1993
Creator: Crivelli, S. & Jessup, E. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effect of boundary conditions on the strength and deformability of replicas of natural fractures in welded tuff: Data analysis

Description: Assessing the shear behavior of intact rock & rock fractures is an important issue in the design of a potential nuclear waste repository at Yucca Mountain Nevada. Cyclic direct shear experiments were conducted on replicas of three natural fractures and a laboratory-developed tensile fracture of welded tuff. The tests were carried out under constant normal loads or constant normal stiffnesses with different initial normal load levels. Each test consisted of five cycles of forward and reverse she… more
Date: April 1, 1994
Creator: Wibowo, J.; Amadei, B.; Sture, S. & Price, R. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Feasibility of tropospheric water vapor profiling using infrared heterodyne differential absorption lidar

Description: Continuous, high quality profiles of water vapor, free of systematic bias, and of moderate temporal and spatial resolution, acquired over long periods at low operational and maintenance cost, are fundamental to the success of the ARM CART program. The development and verification of realistic climate model parameterizations for clouds and net radiation balance, and the correction of other CART site sensor observations for interferences due to the presence of water vapor are critically dependent… more
Date: April 3, 1995
Creator: Grund, C. J.; Hardesty, R. M. & Rye, Barry J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pallet insertion glovebox/hood control ladder diagram. Final project report

Description: The pallet insertion glovebox/hood (G/H) is a special confinement space that will be designed to allow for insertion of pallets into the Stacker/Retriever (S/R) area. The S/R a large vault that is kept at negative 1 inches w.c. relative to the atmosphere and is used for the safe storage of special nuclear material. The S/R system uses a vehicle to move the special nuclear material that are placed on the pallets from the storage bins to input/output (I/O) stations and vice versa. As the name sug… more
Date: December 1, 1995
Creator: Issaian, V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Biodenitrification in Sequencing Batch Reactors. Final report

Description: One plan for stabilization of the Solar Pond waters and sludges at Rocky Flats Plant (RFP), is evaporation and cement solidification of the salts to stabilize heavy metals and radionuclides for land disposal as low-level mixed waste. It has been reported that nitrate (NO{sub 3}{sub {minus}}) salts may interfere with cement stabilization of heavy metals and radionuclides. Therefore, biological nitrate removal (denitrification) may be an important pretreatment for the Solar Pond wastewaters at RF… more
Date: January 23, 1996
Creator: Silverstein, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Numerical methods on some structured matrix algebra problems

Description: This proposal concerned the design, analysis, and implementation of serial and parallel algorithms for certain structured matrix algebra problems. It emphasized large order problems and so focused on methods that can be implemented efficiently on distributed-memory MIMD multiprocessors. Such machines supply the computing power and extensive memory demanded by the large order problems. We proposed to examine three classes of matrix algebra problems: the symmetric and nonsymmetric eigenvalue prob… more
Date: June 1, 1996
Creator: Jessup, Elizabeth R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermohaline circulations and global climate change. Final report

Description: This report discusses results from the project entitled Thermohaline Circulations and Global Climate Change. Results are discussed in three sections related to the development of the Miami Isopycnic Coordinate Ocean Model (MICOM), surface forcing of the ocean by the atmosphere, and experiments with the MICOM related to the problem of the ocean`s response to global climate change. It will require the use of a global, coupled ocean-atmospheric climate model to quantify the feedbacks between ocean… more
Date: October 1, 1996
Creator: Hanson, H. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Numerical methods for the unsymmetric tridiagonal eigenvalue problem

Description: This report summarizes the results of our project {open_quotes}Numerical Methods for the Unsymmetric Tridiagonal Eigenvalue Problem{close_quotes}. It was funded by both by a DOE grant (No. DE-FG02-92ER25122, 6/1/92-5/31/94, $100,000) and by an NSF Research Initiation Award (No. CCR-9109785, 7/1/91-6/30/93, $46,564.) The publications resulting from that project during the DOE funding period are listed below. Two other journal papers and two other conference papers were produced during the NSF fu… more
Date: December 31, 1996
Creator: Jessup, E. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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