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Proceedings Paper

Transverse Coherence Length (ro) Observations
Author(s): F. D. Eaton; D. M. Garvey; E. Dewan; R. Beland
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Paper Abstract

The transverse coherence length (r0) was directly measured approximately every 5 minutes from 29 August to 28 September 1984 at HIDL, WSMR. An MTF-device was used with stellar sources for the ro observations. The diurnal variation of ro is discussed and related to processes affecting optical turbulence in the planetary boundary layer. A complete heat exchange study involving radiative, sensible heat, latent heat and soil heat fluxes is presented and related to ro values as well as to surface measured Cn2 . Of particular n interest to the problem is the observed surface thermal activity. Vertical profile measurements of Cen, obtained from th.ermosondes at various times of the day and night, are presented to show the contributions of optical turbulence at various levels in the atmos-phere to ro. C2n development as related to solar activity is discussed. The measured Cn2 profiles are compared to appropriate models.

Paper Details

Date Published: 9 September 1985
PDF: 10 pages
Proc. SPIE 0547, Effects of the Environment on Systems Performance, (9 September 1985); doi: 10.1117/12.948395
Show Author Affiliations
F. D. Eaton, US Army Atmospheric Sciences Laboratory (United States)
D. M. Garvey, US Army Atmospheric Sciences Laboratory (United States)
E. Dewan, Air Force Geophysics Laboratory (United States)
R. Beland, Air Force Geophysics Laboratory (United States)

Published in SPIE Proceedings Vol. 0547:
Effects of the Environment on Systems Performance
Richard Gomez, Editor(s)

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