Environmental Impact of Stratospheric Flight PDF Download

Author: National Research Council (U.S.). Climatic Impact Committee
Publisher: National Academies
ISBN:
Category : Science
Languages : en
Pages : 374

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Author: United States. Department of Transportation. Climatic Impact Assessment Program Office
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 870

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Author: A. J. Grobecker
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 884

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The report assesses the impact of climatic changes which may occur from operation of aircraft in the stratosphere. The effects considered involve the geophysics of the stratosphere and troposphere, the propulsion effulents, the impacts of climatic change on the biosphere, and the economic and social measures of biological climatic change. Included and discussed are remedial measures by which adverse environmental effects may be avoided.

Author: Michael J. Prather
Publisher:
ISBN:
Category : Aeronautics, Commercial
Languages : en
Pages : 246

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Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781729181065
Category : Science
Languages : en
Pages : 52

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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 ...

Author: Richard S. Stolarski
Publisher:
ISBN:
Category : Aeronautics, Commercial
Languages : en
Pages : 140

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Author:
Publisher: National Academies
ISBN:
Category : Science
Languages : en
Pages : 372

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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309060958
Category : Technology & Engineering
Languages : en
Pages : 68

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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.

Author:
Publisher:
ISBN:
Category : Economic forecasting
Languages : en
Pages : 824

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Author: Gerald O. Barney
Publisher:
ISBN:
Category : Developing countries
Languages : en
Pages : 836

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