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Microphysical and compositional influences on shortwave radiative forcing of climate by sulfate aerosols

Description: Anthropogenic sulfate aerosols scatter shortwave (solar) radiation iincident upon the atmosphere, thereby exerting a cooling influence on climate relative to pre-industrial times. Previous estimates of this forcing place its global and annual average value at about {minus}1 W M{sup {minus}2}, uncertain to a factor of somewhat more than 2, comparable in magnitude to greenhouse gas forcing over the same period but opposite in sign and much more uncertain. Key sources of uncertainty are atmospheri… more
Date: February 1, 1995
Creator: Schwartz, S. E.; Wagener, R. & Nemesure, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Climatological variability in regional air pollution

Description: Although some air pollution modeling studies examine events that have already occurred (e.g., the Chernobyl plume) with relevant meteorological conditions largely known, most pollution modeling studies address expected or potential scenarios for the future. Future meteorological conditions, the major pollutant forcing function other than emissions, are inherently uncertain although much relevant information is contained in past observational data. For convenience in our discussions of regional … more
Date: June 1, 1995
Creator: Shannon, J.D. & Trexler, E.C. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Total carbon dioxide, hydrographic, and nitrate measurements in the Southwest Pacific during Austral autumn, 1990: Results from NOAA/PMEL CGC-90 cruise

Description: In support of the National Oceanic and Atmospheric Administration (NOAA) Climate and Global Change (C&GC) Program, Pacific Marine Environmental Laboratory (PMEL) scientists have been measuring the growing burden of greenhouse gases in the thermocline waters of the Pacific Ocean since 1980. Collection of data at a series of hydrographic stations along longitude 170{degrees} W during austral autumn of 1990 was designed to enhance understanding of the increase in the column burden of chlorofluoroc… more
Date: October 1995
Creator: Lamb, M. F.; Feely, R. A. & Moore, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Emissions of greenhouse gases in the United States, 1987--1994

Description: The Energy Information Administration (EIA) is required by the Energy Policy Act of 1992 to prepare a report on aggregate US national emissions of greenhouse gases for the period 1987--1992, with annual updates thereafter. This is the third annual update report,covering national emissions over the period 1987--1993, with preliminary estimates of US carbon dioxide and halocarbon emissions for 1994. Calculating national aggregate emissions(or ``national inventories``) of greenhouse gases is a rec… more
Date: September 25, 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Photovoltaic energy impacts on US CO{sub 2} emissions

Description: The potential role of photovoltaic (PV) technology in reducing CO{sub 2} emissions was evaluated in an energy-environmental economic systems model. The model examines the role of photovoltaic energy systems in a competitive market environment. PV technology is already competitive for certain niche markets. Further growth in those markets is expected as well as expansion into other markets. Decreasing cost penalties should provide greater incentive for expansion of niche markets. This analysis i… more
Date: August 1, 1995
Creator: Morris, S.C.; Lee, J.; Moskowitz, P.D. & Goldstein, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Enhancing the use of coals by gas reburning-sorbent injection. Quarterly report No. 32, July 1--September 30, 1995

Description: The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on two coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone fired. Work on a third unit, wall fired, has been stopped because of funding limitions. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 5… more
Date: November 16, 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Co{Sub 2} Emission Calculations and Trends

Description: Evidence that the atmospheric CO{sub 2} concentration has risen during the past several decades is irrefutable. Most of the observed increase in atmospheric CO{sub 2} is believed to result from CO{sub 2} releases from fossil-fuel burning. The United Nations (UN) Framework Convention on Climate Change (FCCC), signed in Rio de Janeiro in June 1992, reflects global concern over the increasing CO{sub 2} concentration and its potential impact on climate. One of the convention`s stated objectives was… more
Date: December 31, 1995
Creator: Boden, T. A.; Marland, G. & Andres, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An investigation of flow regimes affecting the Mexico City region

Description: The Mexico City region is well-known to the meteorological community for its overwhelming air pollution problem. Several factors contribute to this predicament, namely, the 20 million people and vast amount of industry within the city. The unique geographical setting of the basin encompassing Mexico City also plays an important role. This basin covers approximately 5000 km{sup 2} of the Mexican Plateau at an average elevation of 2250 m above sea level (asl) and is surrounded on three sides by m… more
Date: May 1, 1995
Creator: Bossert, James E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Cryogenic separation of CO{sub 2} from the fluegas of conventional coal-fired power plants

Description: The reduction of CO{sub 2} emissions to the atmosphere is under study because such emissions are believed to contribute to undesired global warming via the greenhouse effect. Several conceptual processes for the capture of CO{sub 2} from power-plant flue gas are listed, with an emphasis on refrigeration and compression as a promising process to compete with amine absorption. At conditions that are industrially achievable (temperature of 170 K and pressure of 5 bar), CO{sub 2} forms a nearly pur… more
Date: February 1, 1995
Creator: Brockmeier, N. F.; Jody, B. J.; Wolsky, A. M. & Daniels, E. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Parallel processing of atmospheric chemistry calculations: Preliminary considerations

Description: Global climate calculations are already saturating the class modern vector supercomputers with only a few central processing units. Increased resolution and inclusion of routines to deal with biogeochemical portions of the terrestrial climate system will soon demand massively parallel approaches. The atmospheric photochemistry ensemble is intimately linked to climate through the trace greenhouse gases ozone and methane and modules for representing it are being attached to global three dimension… more
Date: January 1, 1995
Creator: Elliott, S. & Jones, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bibliography of greenhouse-gas reduction strategies

Description: A bibliography of greenhouse-gas reduction strategies has been compiled to assist the Climate change Action Plan Task Force in their consideration of strategies to reduce greenhouse-gas emissions from personal motor vehicles. The document contains a summary of the literature, including it major directions and implications; and annotated listing of 32 recent pertinent documents; and a listing of a larger group of related reports.
Date: March 1, 1995
Creator: Tompkins, M. M. & Mintz, M. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Detection of greenhouse-gas-induced climatic change. Progress report, July 1, 1994--July 31, 1995

Description: The objective of this research is to assembly and analyze instrumental climate data and to develop and apply climate models as a basis for detecting greenhouse-gas-induced climatic change, and validation of General Circulation Models. In addition to changes due to variations in anthropogenic forcing, including greenhouse gas and aerosol concentration changes, the global climate system exhibits a high degree of internally-generated and externally-forced natural variability. To detect the anthrop… more
Date: July 21, 1995
Creator: Jones, P.D. & Wigley, T.M.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Carbon Dioxide Information Analysis Center and World Data Center-A for atomspheric trace gases: Catalog of data bases and reports

Description: This document provides information about the many reports and other materials made available by the US Department of Energy`s Global Change Research Program (GCRP). Section A provides information about the activities, scope, and direction of the GCRP; Sections B,C, D, and E contain information about research that has been sponsered by GCRP; Sections F and G contains information about the numeric data packages and computer model pa kages the have been compiled by the GCRP; Section H describes re… more
Date: April 1, 1995
Creator: Burtis, M.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hurricanes! USGCRP Seminar, 11 December 1995.

Description: In this USGRP Seminar, speakers try to answers questions like:What is the current status of hurricane track prediction? What caused the record number of Atlantic tropical storms in 1995? Are we witnessing a change in the number and frequency of tropical storms? Do these storms represent a changing climate? What will tropical storms be like in a greenhouse warmer world?
Date: December 11, 1995
Creator: Baker, James
Item Type: Refine your search to only Text
Partner: UNT Libraries
open access

Report of the Eleventh Session of the Intergovernmental Panel on Climate Change (IPCC)

Description: The panel discussed and adopted various draft reports including the report of the tenth session and the IPCC Synthesis Report. The Panel also accepted contributions of Working Group to its Second Assessment. Among other issues, the Panel considered the budget and assessed the National Greenhouse Gas Inventories Program (IPCC NGGIP). Also, special report on Land use Change and Forestry provided
Date: December 1995
Creator: Intergovernmental Panel on Climate Change (IPCC)
Item Type: Refine your search to only Text
Partner: UNT Libraries
open access

Proxy Records of the Indonesian Low and the El Ni{tilde n}o-Southern Oscillation (ENSO) from Stable Isotope Measurements of Indonesian Reef Corals

Description: The Earth`s largest atmospheric convective center is the Indonesian Low. It generates the Australasian monsoon, drives the zonal tropospheric Walker Circulation, and is implicated in the genesis of the El Nino-Southern Oscillation (ENSO). The long-term variability of the Indonesian Low is poorly characterized, yet such information is crucial for evaluating whether changes in the strength and frequency of ENSO events are a possible manifestation of global warming. Stable oxygen isotope ratios ({… more
Date: December 31, 1995
Creator: Moore, M.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[Research on greenhouse-gas-induced climate change]

Description: This climate research focuses on the following topics: model development and testing; climate simulations and analyses; analyses of observed climate; development of analysis methods; global warming: physics, economics and policy; and participation in international research efforts. Also summarized are six projects that are proposed for the next five years.
Date: December 31, 1995
Creator: Schlesinger, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurement of Heterogeneous Chemical Processes Relevant to Aerosol Surfaces and Trace Gases Active in the Marine Environment. Progress Report, February 1994--January 1995

Description: Biogenically produced reduced sulfur compounds from the marine environment, deliver a sulfur burden to the atmosphere which is about half as large as that due to sulfur oxides produced by fossil fuel combustion. The multiphase chemical processes for these species must be understood in order to evaluate the relative roles of biogenic and combustion produced sulfur oxides over the oceans. The aim of the studies funded by the subject DOE grant is to measure parameters governing the heterogeneous c… more
Date: February 1, 1995
Creator: Davidovits, P.; Worsnop, D. R.; Zahniser, M. S.; Jayne, J. T. & Kolb, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Climate variability and climate change vulnerability and adaptation. Workshop summary

Description: Representatives from fifteen countries met in Prague, Czech Republic, on September 11-15, 1995, to share results from the analysis of vulnerability and adaptation to global climate change. The workshop focused on the issues of global climate change and its impacts on various sectors of a national economy. The U.N. Framework Convention on Climate Change (FCCC), which has been signed by more than 150 governments worldwide, calls on signatory parties to develop and communicate measures they are im… more
Date: December 31, 1995
Creator: Bhatti, N.; Cirillo, R.R. & Dixon, R.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Environmental Report 1994, Volume No. 1

Description: Lawrence Livermore National Laboratory (LLNL), a U.S. Department of Energy (DOE) facility operated by the University of California, serves as a national resource of scientific, technical, and engineering capability. The Laboratory`s mission focuses on nuclear weapons and national security, and over the years has been broadened to include areas such as strategic defense, energy, the environment, biomedicine, technology transfer, the economy, and education. The Laboratory carries out this multifa… more
Date: September 1, 1995
Creator: Rath, K.S.; Harrach, R.J.; Gallegos, G.M. & Failor, R.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Signal and noise in global warming detection. Final progress report, July 15, 1990--July 14, 1994

Description: This research considers the mean squared error (MSE) incurred in estimating an idealized earth`s global average temperature with a finite network of point gauges distributed optimally over the globe. The construction of a linear smoothing filter is considered for estimating the forced part of a change in a climatological field such as the surface temperature. The filter is optimal in the sense that is suppresses the natural variability of noise relative to the forced part or signal to the maxim… more
Date: May 19, 1995
Creator: North, G.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiative forcing calculations for CH3C1

Description: Methyl chloride (MC) is the major natural source of chlorine in the stratosphere. The production of MC is dominated by biological sources from the oceans but it also has smaller anthropogenic sources, such as biomass burning. Production has a seasonal cycle which couples with the shorter lifetime of tropospheric MC to produce nonuniform global mixing. As an absorber of infrared radiation, MC, is of interest for its potential affect on the trospheric energy balance as well as for its chemical in… more
Date: January 1, 1995
Creator: Grossman, A. S.; Grant, K.E. & Wuebbles, D.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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