Some Measurements of the Vertical Distribution of Ozone in the Atmospheric Boundary Layer PDF Download
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Author: Han Dop
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 34
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Author: Han Dop
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 34
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Book Description
Author: Paul Steven Sanik
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 394
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Author: Richard T. Bettinger
Publisher:
ISBN:
Category :
Languages : en
Pages : 100
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Book Description
Author: Ivar S.A. Isaksen
Publisher: Springer Science & Business Media
ISBN: 9400929137
Category : Science
Languages : en
Pages : 433
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Book Description
The main objective of the workshop was to increase our knowledge of ozone formation and distribution in the troposphere, its relation to precursor (NO~ and HC species) distribution, how it is affected by transport processes in the troposphere, and to show how the increasing levels of ozone can cause environmental problem. The focus was on the interaction of ozone on regional and global scales. There is mounting evidence that such interactions occur and that the ozone levels are increasing in most of the Northern Hemisphere tropo sphere. A likely source of ozone increase is human activity. As result of this, tropospheric climate may change significantly within a few decades, either through direct effects by ozone itself or indirectly through its effect on other radiatively active trace species. Further more, ozone may have adverse effects on vegetation over large continental areas due to enhanced levels which have been measured to take place. As it is well known that ozone plays a key role in the oxidation of a large number of chemical species in the troposphere, natural as well as man-made, the atmospheric distribution of important trace species like sulfur dioxide, nitrogen oxides and hydrocarbons could be markedly changed as a result of ozone changes. The rapidly increasing interest in tropospheric ozone, and the key role ozone plays in several atmospheric areas as well the obvious increase in the tropospheric concentration of ozone made ozone a natural choice as a topic for the workshop.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 506
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Author: United States. Energy Research and Development Administration
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 776
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Author: United States. Energy Research and Development Administration. Technical Information Center
Publisher:
ISBN:
Category : Force and energy
Languages : en
Pages : 1066
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Author: Robert D. Hudson
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 498
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Abstract: The papers presented at the 1992 Quadrennial Ozone Symposium held in Charlottesville, Virginia, cover topics in both tropospheric and stratospheric research. These topics include ozone trends and climatology, ground based, aircraft, balloon, rocket and satellite measurements, artic and antarctic research, global and regional modeling, and volcanic effects.
Author: James M. Russell
Publisher:
ISBN:
Category : Ozone
Languages : en
Pages : 60
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This report presents a description and detailed analysis of a technique for inferring atmospheric ozone information from satellite nadir measurements in the 1042 cm−1 band. A method is formulated for computing the emission from the lower boundary under the satellite which circumvents the difficult analytical problems caused by the presence of atmospheric clouds and the water-vapor continuum absorption. The inversion equations are expanded in terms of the eigenvectors and eigenvalues of a least-squares-solution matrix, and an analysis is performed to determine the information content of the radiance measurements. The results show that under favorable conditions there are only two pieces of independent information available from the measurements: the total ozone u and the altitude hm of the primary maximum in the ozone profile. An error analysis shows that errors in u are affected most by random radiance noise, lower boundary temperature errors, and ozone absorption-line intensity errors. Errors in hm are affected most by the former two errors and also by temperature-profile bias errors. The results when all errors are considered simultaneously indicate that it should ultimately be possible to determine u to within 10 percent or less and to determine hm to within 1.5 km when the root-mean-square radiance noise level is 1 percent or less. The calculations are also made for various degrees of cloudiness in the troposphere. The data show that the presence of clouds does not seriously affect results as long as there is some contrast between the ozone spectrum and the lower boundary emission spectrum. Finally, the inversion technique is applied to radiances measured from a balloon over Palestine, Texas, and to Nimbus III satellite data measured over the Bahama Islands.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
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