Download or read book Environmental Impact of Stratospheric Flight written by National Research Council (U.S.). Climatic Impact Committee and published by National Academies. This book was released on 1975 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impact of Stratospheric Flight written by and published by . This book was released on 1975 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impact of Stratospheric Flight Biological Climatic Effects of Aircraft Emissions in the Stratosphe A Report of the Climatic Impact Committee Chairman H G Booker written by National Academy of Sciences (U.S.) and published by . This book was released on 1975 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Stratospheric Pollution by Aircraft Report of Findings final Report written by United States. Department of Transportation. Climatic Impact Assessment Program Office and published by . This book was released on 1974 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impact of Stratospheric Flight written by and published by National Academies. This book was released on 1975-01-01 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Atmospheric Effects of Stratospheric Aircraft A First Program Report written by Michael J. Prather and published by . This book was released on 1992 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Atmospheric Effects of Stratospheric Aircraft A Current Consensus written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-24 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 1970's, a fleet of supersonic aircraft flying in the lower stratosphere was proposed. A large fleet was never built for economic, political, and environmental reasons. Technological improvements may make it economically feasible to develop supersonic aircraft for current markets. Some key results of earlier scientific programs designed to assess the impact of aircraft emissions on stratospheric ozone are reviewed, and factors that must be considered to assess the environmental impact of aircraft exhaust are discussed. These include the amount of nitrogen oxides injected in the stratosphere, horizontal transport, and stratosphere/troposphere assessment models are presented. Areas in which improvements in scientific understanding and model representation must be made to reduce the uncertainty in model calculations are identified. Douglass, A. R. and Carroll, M. A. and Demore, W. B. and Holton, J. R. and Isaksen, I. S. A. and Johnston, H. S. and Ko, M. K. W. Goddard Space Flight Center; Jet Propulsion Laboratory ...
Download or read book Report of Findings the Effects of Stratospheric Pollution by Aircraft written by United States. Department of Transportation. Climatic Impact Assessment Program Office and published by . This book was released on 1974 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1995 Scientific Assessment of the Atmospheric Effects of Stratospheric Aircraft written by Richard S. Stolarski and published by . This book was released on 1995 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Atmospheric Effects of Stratospheric Aircraft Project written by National Research Council and published by National Academies Press. This book was released on 1998-08-21 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists and policy-makers alike are concerned that operation of a fleet of high-speed civil transport (HSCT) aircraft could significantly affect the global atmosphere. HSCT emissions may have a direct effect on the chemistry of the atmosphere, leading to changes in the distribution of ozone; they may also have indirect effects on ozone and on global climate through coupling with radiative and dynamical processes in the atmosphere. An assessment of the atmospheric impact of a fleet of HSCTs thus requires not only an understanding of the chemistry of the natural stratosphere and its possible perturbations by HSCT emissions, but also an understanding of the pathways for transport of HSCT emissions within the atmosphere, and the resulting temporal and spatial distribution of HSCT emissions. The results of NASA's Atmospheric Effects of Stratospheric Aircraft (AESA) project were summarized in a 1995 NASA assessment. The present report looks at that summary and at more recent work to evaluate the state of the science. AESA has made good progress in the past few years. Satellite and aircraft observations have elucidated important aspects of large-scale transport processes. Field campaigns have provided a much better picture of the relative importance, below 20 km altitude, of the major catalytic cycles for ozone destruction. Careful intercomparisons of assessment models have led to reduction of some of the differences among the models. However, a number of uncertainties and inconsistencies still remain.
Download or read book For Greener Skies written by National Research Council and published by National Academies Press. This book was released on 2002-04-24 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each new generation of commercial aircraft produces less noise and fewer emissions per passenger-kilometer (or ton-kilometer of cargo) than the previous generation. However, the demand for air transportation services grows so quickly that total aircraft noise and emissions continue to increase. Meanwhile, federal, state, and local noise and air quality standards in the United States and overseas have become more stringent. It is becoming more difficult to reconcile public demand for inexpensive, easily accessible air transportation services with concurrent desires to reduce noise, improve local air quality, and protect the global environment against climate change and depletion of stratospheric ozone. This situation calls for federal leadership and strong action from industry and government. U.S. government, industry, and universities conduct research and develop technology that could help reduce aircraft noise and emissions-but only if the results are used to improve operational systems or standards. For example, the (now terminated) Advanced Subsonic Technology Program of the National Aeronautics and Space Administration (NASA) generally brought new technology only to the point where a system, subsystem model, or prototype was demonstrated or could be validated in a relevant environment. Completing the maturation process-by fielding affordable, proven, commercially available systems for installation on new or modified aircraft-was left to industry and generally took place only if industry had an economic or regulatory incentive to make the necessary investment. In response to this situation, the Federal Aviation Administration, NASA, and the Environmental Protection Agency, asked the Aeronautics and Space Engineering Board of the National Research Council to recommend research strategies and approaches that would further efforts to mitigate the environmental effects (i.e., noise and emissions) of aviation. The statement of task required the Committee on Aeronautics Research and Technology for Environmental Compatibility to assess whether existing research policies and programs are likely to foster the technological improvements needed to ensure that environmental constraints do not become a significant barrier to growth of the aviation sector.
Download or read book Report of Findings the Effects of Stratospheric Pollution by Aircraft written by A. J. Grobecker and published by . This book was released on 1974 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book For Greener Skies written by National Research Council and published by National Academies Press. This book was released on 2002-05-24 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each new generation of commercial aircraft produces less noise and fewer emissions per passenger-kilometer (or ton-kilometer of cargo) than the previous generation. However, the demand for air transportation services grows so quickly that total aircraft noise and emissions continue to increase. Meanwhile, federal, state, and local noise and air quality standards in the United States and overseas have become more stringent. It is becoming more difficult to reconcile public demand for inexpensive, easily accessible air transportation services with concurrent desires to reduce noise, improve local air quality, and protect the global environment against climate change and depletion of stratospheric ozone. This situation calls for federal leadership and strong action from industry and government. U.S. government, industry, and universities conduct research and develop technology that could help reduce aircraft noise and emissions-but only if the results are used to improve operational systems or standards. For example, the (now terminated) Advanced Subsonic Technology Program of the National Aeronautics and Space Administration (NASA) generally brought new technology only to the point where a system, subsystem model, or prototype was demonstrated or could be validated in a relevant environment. Completing the maturation process-by fielding affordable, proven, commercially available systems for installation on new or modified aircraft-was left to industry and generally took place only if industry had an economic or regulatory incentive to make the necessary investment. In response to this situation, the Federal Aviation Administration, NASA, and the Environmental Protection Agency, asked the Aeronautics and Space Engineering Board of the National Research Council to recommend research strategies and approaches that would further efforts to mitigate the environmental effects (i.e., noise and emissions) of aviation. The statement of task required the Committee on Aeronautics Research and Technology for Environmental Compatibility to assess whether existing research policies and programs are likely to foster the technological improvements needed to ensure that environmental constraints do not become a significant barrier to growth of the aviation sector.
Download or read book Report of Findings the Effects of Stratospheric Pollution by Aircraft written by A. J. Grobecker and published by . This book was released on 1974 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of NASA s Atmospheric Effects of Stratospheric Aircraft Project written by National Research Council and published by National Academies Press. This book was released on 1999-10-05 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NRC Panel on the Atmospheric Effects of Aviation (PAEAN) was established to provide guidance to NASA's Atmospheric Effects of Aviation Program (AEAP) by evaluating the appropriateness of the program's research plan, appraising the project-sponsored results relative to the current state of scientific knowledge, identifying key scientific uncertainties, and suggesting research activities likely to reduce those uncertainties. Over the last few years, the panel has written periodic reviews of both the subsonic aviation (Subsonic Assessment-SASS) and the supersonic aviation (Atmospheric Effects of Stratospheric Aircraft-AESA) components of AEAP, including: An Interim Review of the Subsonic Assessment Project (1997); An Interim Assessment of AEAP's Emissions Characterization and Near-Field Interactions Elements (1997); An Interim Review of the AESA Project: Science and Progress (1998); Atmospheric Effects of Aviation: A Review of NASA's Subsonic Assessment Project (1998). This report constitutes the final review of AESA and will be the last report written by this panel. The primary audience for these reports is the program managers and scientists affiliated with AEAP, although in some cases the topics discussed are of interest to a wider audience.
Download or read book The Atmospheric Effects of Stratospheric Aircraft written by Richard S. Stolarski and published by . This book was released on 1995 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Global 2000 Report to the President entering the Twenty first Century The technical report written by Global 2000 Study (U.S.) and published by . This book was released on 1980 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report on world trends and long term prospects regarding population growth, natural resources and environmental issues - emphasizing the interrelationships between these areas, presents integrated approach projections to the year 2000 of fishery resources, forests, power resources, water resources, mineral resources, agriculture, climate and nuclear energy, etc., And includes a comparison of global model forecasting techniques. Diagrams, graphs, maps, references and statistical tables.
