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Weather Forecasting: National Weather Service Is Planning to Improve Service and Gain Efficiency, but Impacts of Potential Changes Are Not Yet Known

Description: A letter report issued by the Government Accountability Office with an abstract that begins "To provide accurate and timely weather forecasts, the National Weather Service (NWS) uses systems, technologies, and manual processes to collect, process, and disseminate weather data to its nationwide network of field offices and centers. After completing a major modernization program in the 1990s, NWS is seeking to upgrade its systems with the goal of improving its forecasting abilities, and it is con… more
Date: July 14, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Regional hydrothermal commercialization plan

Description: This plan for the Rocky Mountain Basin and Range Region articulates the complete range of initiatives (federal, state, local, and industrial) required for the early commercialization of the regions geothermal resources. (MHR)
Date: July 14, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Is Climate Change Predictable? Really?

Description: This project is the first application of a completely different approach to climate modeling, in which new prognostic equations are used to directly compute the evolution of two-point correlations. This project addresses three questions that are critical for the credibility of the science base for climate prediction: (1) What is the variability spectrum at equilibrium? (2) What is the rate of relaxation when subjected to external perturbations? (3) Can variations due to natural processes be dis… more
Date: November 14, 2005
Creator: Dannevik, W P & Rotman, D A
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Simulating atmosphere flow for wind energy applications with WRF-LES

Description: Forecasts of available wind energy resources at high spatial resolution enable users to site wind turbines in optimal locations, to forecast available resources for integration into power grids, to schedule maintenance on wind energy facilities, and to define design criteria for next-generation turbines. This array of research needs implies that an appropriate forecasting tool must be able to account for mesoscale processes like frontal passages, surface-atmosphere interactions inducing local-s… more
Date: January 14, 2008
Creator: Lundquist, J K; Mirocha, J D; Chow, F K; Kosovic, B & Lundquist, K A
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Regional operations research for geothermal development in the state of California

Description: A system of regional operations research activities is described which will formulate potential future development scenarios for geothermal energy and identify the public initiatives necessary for that potential. The specifics of the work plan for the state of California are outlined along with the project management structure and reporting schedules. (MHR)
Date: April 14, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A study of proposed semi-parallel and complete parallel operations of the Canyon and concentration Buildings, 200 Areas

Description: Due to a forecasted increase in pile area production as well as a possible decrease in batch size of the separations process, an increase in the capacities of the separations plants is indicated. It is the purpose of this report to review this relationship in the light of existing data and to determine how this additional capacity can best be attained through the use of either the proposed semiparallel or complete parallel methods of operation. Emphasis will necessarily be given to consideratio… more
Date: April 14, 1949
Creator: Hollenbach, S. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Natural gas productive capacity for the lower 48 States, 1980 through 1995

Description: The purpose of this report is to analyze monthly natural gas wellhead productive capacity in the lower 48 States from 1980 through 1992 and project this capacity from 1993 through 1995. For decades, natural gas supplies and productive capacity have been adequate to meet demand. In the 1970`s the capacity surplus was small because of market structure (split between interstate and intrastate), increasing demand, and insufficient drilling. In the early 1980`s, lower demand, together with increased… more
Date: July 14, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final Report: Improved Site Characterization And Storage Prediction Through Stochastic Inversion Of Time-Lapse Geophysical And Geochemical Data

Description: During the last months of this project, our project activities have concentrated on four areas: (1) performing a stochastic inversion of pattern 16 seismic data to deduce reservoir bulk/shear moduli and density; the need for this inversion was not anticipated in the original scope of work, (2) performing a stochastic inversion of pattern 16 seismic data to deduce reservoir porosity and permeability, (3) complete the software needed to perform geochemical inversions and (4) use the software to p… more
Date: April 14, 2011
Creator: Ramirez, A.; Mcnab, W.; Hao, Y.; White, D. & Johnson, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of the Principle of Maximum Conformality to the Top-Quark Forward-Backward Asymmetry at the Tevatron

Description: The renormalization scale uncertainty can be eliminated by the Principle of Maximum Conformality (PMC) in a systematic scheme-independent way. Applying the PMC for the t{bar t}-pair hadroproduction at the NNLO level, we have found that the total cross-sections {sigma}{sub t{bar t}} at both the Tevatron and LHC remain almost unchanged when taking very disparate initial scales {mu}{sub R}{sup init} equal to m{sub t}, 10 m{sub t}, 20 m{sub t} and {radical}s, which is consistent with renormalizatio… more
Date: May 14, 2012
Creator: Brodsky, Stanley J. & Wu, Xing-Gang
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

System Modeling of kJ-class Petawatt Lasers at LLNL

Description: Advanced Radiographic Capability (ARC) project at the National Ignition Facility (NIF) is designed to produce energetic, ultrafast x-rays in the range of 70-100 keV for backlighting NIF targets. The chirped pulse amplification (CPA) laser system will deliver kilo-Joule pulses at an adjustable pulse duration from 1 ps to 50 ps. System complexity requires sophisticated simulation and modeling tools for design, performance prediction, and comprehension of experimental results. We provide a brief o… more
Date: April 14, 2010
Creator: Shverdin, M Y; Rushford, M; Henesian, M A; Boley, C; Haefner, C; Heebner, J E et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The prediction of Neutron Elastic Scattering from Tritium for E(n) = 6-14 MeV

Description: In a recent report Navratil et al. evaluated the angle-integrated cross section and the angular distribution for 14-MeV n+T elastic scattering by inferring these cross sections from accurately measured p+3He angular distributions. This evaluation used a combination of two theoretical treatments, based on the no-core shell model and resonating-group method (NCSM/RGM) and on the R-matrix formalism, to connect the two charge-symmetric reactions n+T and p+{sup 3}He. In this report we extend this tr… more
Date: June 14, 2010
Creator: Anderson, J. D.; Dietrich, F. S.; Luu, T.; McNabb, D. P.; Navratil, P. & Quaglioni, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Annual Energy Review 1993

Description: This twelfth edition of the Annual Energy Review (AER) presents the Energy Information Administration`s historical energy statistics. For most series, statistics are given for every year from 1949 through 1993. Because coverage spans four and a half decades, the statistics in this report are well-suited to long-term trend analyses. The AER is comprehensive. It covers all major energy activities, including consumption, production, trade, stocks, and prices, for all major energy commodities, incl… more
Date: July 14, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cloud Occurrence Frequency at the Barrow, Alaska, ARM Climate Research Facility for 2008 Third Quarter 2009 ARM and Climate Change Prediction Program Metric Report

Description: Clouds represent a critical component of the Earth’s atmospheric energy balance as a result of their interactions with solar and terrestrial radiation and a redistribution of heat through convective processes and latent heating. Despite their importance, clouds and the processes that control their development, evolution and lifecycle remain poorly understood. Consequently, the simulation of clouds and their associated feedbacks is a primary source of inter-model differences in equilibrium clima… more
Date: July 14, 2009
Creator: Jensen, M; Johnson, K & Mather, JH
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Study of Aerosol/Cloud/Radiation Interactions over the ARM SGP Site

Description: While considerable advances in the understanding of atmospheric processes and feedbacks in the climate system have led to a better representation of these mechanisms in general circulation models (GCMs), the greatest uncertainty in predictability of future climate arises from clouds and their interactions with radiation. To explore this uncertainty, cloud resolving model has been evolved as one of the main tools for understanding and testing cloud feedback processes in climate models, whereas t… more
Date: March 14, 2006
Creator: Chuang, C. & Chin, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

FUTURE CLIMATE ANALYSIS

Description: This Analysis/Model Report (AMR) documents an analysis that was performed to estimate climatic variables for the next 10,000 years by forecasting the timing and nature of climate change at Yucca Mountain (YM), Nevada (Figure l), the site of a potential repository for high-level radioactive waste. The future-climate estimates are based on an analysis of past-climate data from analog meteorological stations, and this AMR provides the rationale for the selection of these analog stations. The stati… more
Date: March 14, 2000
Creator: Forester, R.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of High-Temperature Ferritic Alloys and Performance Prediction Methods for Advanced Fission Energy Systems

Description: Reports the results of a comprehensive development and analysis of a database on irradiation hardening and embrittlement of tempered martensitic steels (TMS). Alloy specific quantitative semi-empirical models were derived for the dpa dose, irradiation temperature (ti) and test (Tt) temperature of yield stress hardening (or softening) .
Date: August 14, 2009
Creator: Odette, G. RObert & Yamamoto, Takuya
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Calibrated Properties Model

Description: This report has documented the methodologies and the data used for developing rock property sets for three infiltration maps. Model calibration is necessary to obtain parameter values appropriate for the scale of the process being modeled. Although some hydrogeologic property data (prior information) are available, these data cannot be directly used to predict flow and transport processes because they were measured on scales smaller than those characterizing property distributions in models use… more
Date: February 14, 2003
Creator: Liu, H. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

In service design by simulations

Description: Irradiation of materials by energetic particles (e.g. electrons, ions and neutrons) is associated with very high internal power dissipation, which can drive the underlying nano- and microstructure far from normal equilibrium conditions. One of the most unusual responses in this connection is the ability of the material's nano- and microstructure to self-assemble in well-organized, two- and three-dimensional periodic arrangements. We reviewed and assessed experimental evidence and theoretical mo… more
Date: March 14, 2004
Creator: Ghoniem, Nasr H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

GAP Final Technical Report 12-14-04

Description: The Genomics Annotation Platform (GAP) was designed to develop new tools for high throughput functional annotation and characterization of protein sequences and structures resulting from genomics and structural proteomics, benchmarking and application of those tools. Furthermore, this platform integrated the genomic scale sequence and structural analysis and prediction tools with the advanced structure prediction and bioinformatics environment of ICM. The development of GAP was primarily orient… more
Date: December 14, 2004
Creator: Andrew J. Bordner, PhD, Senior Research Scientist
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiation Effects on Sorption and Mobilization of Radionuclides during Transport through Geosphere

Description: Site restoration activities at DOE facilities and the permanent disposal of nuclear waste generated at DOE facilities involve working with and within various types and levels of radiation fields. Radionuclide decay and the associated radiation fields lead to physical and chemical changes that can degrade or enhance material properties. The principal sources of radiation at the DOE sites are the actinides and fission-products contained in high-level wastes currently in storage. Alpha-decay of th… more
Date: March 14, 2002
Creator: Wang, L. M.; Ewing, R. C. & Hayes, K. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A New Tall-Tower Meteorological Monitoring System

Description: The Atmospheric Technologies Group of the Savannah River Technology Center operates an extensive meteorological monitoring network of 13 tower in and near the Savannah River Site near Aiken, South Carolina. The data from this system are available in ''real-time'' for emergency response atmospheric release modeling and operational weather forecasting.
Date: January 14, 2003
Creator: Parker, M. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A spatial time series framework for modeling daily precipitationat regional scales

Description: In this paper, a framework for stochastic spatiotemporal modeling of daily precipitation in a hindcast mode is presented. Observed precipitation levels in space and time are modeled as a joint realization of a collection of space-indexed time series, one for each spatial location. Time series model parameters are spatially varying, thus capturing space-time interactions. Stochastic simulation, i.e., the procedure of generating alternative precipitation realizations (synthetic fields) over the s… more
Date: November 14, 2001
Creator: Kyriakidis, Phaedon C.; Miller, Norman L. & Kim, Jinwon
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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