Theoretical Explanation Of Spectral Slopes In Stratospheric Turbulence Data And Implications For Vertical Transport
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| Author | : Edmond M. Dewan |
| Publisher | : |
| Total Pages | : 58 |
| Release | : 1976 |
| Genre | : Atmospheric turbulence |
| ISBN | : |
This paper is motivated by the requirement to improve understanding of vertical motion of pollutants in the stratosphere. One method to estimate vertical transport due to the effects of turbulence is by means of the effective diffusivity coefficient. To calculate this parameter, it is often necessary to know the value of epsilon, the rate of turbulent dissipation. This parameter, epsilon, is also important to know in the context of the global numerical stratospheric simulation models now being created for environmental assessment purposes.
| Author | : Edmond M. Dewan |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1976 |
| Genre | : Atmospheric turbulence |
| ISBN | : |
This paper is motivated by the requirement to improve understanding of vertical motion of pollutants in the stratosphere. One method to estimate vertical transport due to the effects of turbulence is by means of the effective diffusivity coefficient. To calculate this parameter, it is often necessary to know the value of epsilon, the rate of turbulent dissipation. This parameter, epsilon, is also important to know in the context of the global numerical stratospheric simulation models now being created for environmental assessment purposes.
| Author | : Edmond M. Dewan |
| Publisher | : |
| Total Pages | : 36 |
| Release | : 1981 |
| Genre | : Atmospheric circulation |
| ISBN | : |
This paper reviews the estimates to date of the vertical 'effective diffusion coefficient' for stratospheric small scale turbulence transport, KB. These estimates range (in order of magnitude) from 1.0 sq. meter/s to 0.01 sq. meter/s, that is to say from a value which would make turbulence a dominant factor in stratospheric transport to a value which would make it totally insignificant. Such a large range implies much ignorance in this subject. The various techniques are closely examined and the unanswered experimental questions are exhibited. The conclusion is reached that more experimental work needs to be done before one has a reliable estimate for KB.
| Author | : |
| Publisher | : |
| Total Pages | : 704 |
| Release | : 1995 |
| Genre | : Aeronautics |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 530 |
| Release | : 1996 |
| Genre | : Government publications |
| ISBN | : |
| Author | : Edmond M. Dewan |
| Publisher | : |
| Total Pages | : 36 |
| Release | : 1979 |
| Genre | : Stratosphere |
| ISBN | : |
| Author | : Technology Reports Centre (Great Britain) |
| Publisher | : |
| Total Pages | : 372 |
| Release | : 1977 |
| Genre | : |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 1062 |
| Release | : 1978 |
| Genre | : Research |
| ISBN | : |
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
| Author | : Edmond M. Dewan |
| Publisher | : |
| Total Pages | : 76 |
| Release | : 1980 |
| Genre | : Atmospheric turbulence |
| ISBN | : |
This report is a tutorial on the effects of atmospheric turbulence upon systems which rely upon the propagation of LASER beams. In addition to providing a simplified presentation of turbulence theory and optical effects, it describes the state of the art of the new technique of radiosonde estimation of index of refraction fluctuations. Suggestions are given for future research which will help to answer current Air Force needs. The feasibility of some laser systems will depend upon the value of r0, the coherence length (which is related to “C2n” which in turn is related to the degree of turbulence). At present, the statistics of “r0” are inadequate.
| Author | : Scripps Institution of Oceanography. Library |
| Publisher | : |
| Total Pages | : 732 |
| Release | : 1980 |
| Genre | : Marine biology |
| ISBN | : |
