Focusing on a Turbulent Layer: Principle of the"Generalized SCIDAR"

Focusing on a Turbulent Layer: Principle of the"Generalized SCIDAR"

ABSTRACT During the last two decades, much effort has been put into the remotesensing of atmospheric turbulent layers, using optical devices. The mainscientific interest concerns optical path fluctuations relevant tocommunication and astronomy and the widening of our understanding ofatmospheric phys...

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Veröffentlicht in:Publications of the Astronomical Society of the Pacific. - University of Chicago Press, 1889. - 110(1998), 743, Seite 86-91
1. Verfasser: Fuchs, Alain (VerfasserIn)
Weitere Verfasser: Tallon, Michel, Vernin, Jean
Format: Online-Aufsatz
Veröffentlicht: 1998
Zugriff auf das übergeordnete Werk:Publications of the Astronomical Society of the Pacific
Schlagworte:Physical sciences Applied sciences Alain
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520 |a ABSTRACT During the last two decades, much effort has been put into the remotesensing of atmospheric turbulent layers, using optical devices. The mainscientific interest concerns optical path fluctuations relevant tocommunication and astronomy and the widening of our understanding ofatmospheric physics. Here we describe an original technique that involvesmoving a virtual plane of analysis in the atmosphere. Using this technique,a simple optical combination allows us to explore the atmosphere, wipingout a particular layer while distant layers located beneath or above arereinforced. When combined with the SCIDAR technique, this phenomenon leadsto the "generalized SCIDAR" concept, allowing turbulenceprofiles to be remotely assessed throughout the whole atmosphere, includingthe boundary layer. The potential of this new concept is shown in alaboratory experiment using a vein to simulate an atmospheric turbulentlayer. 
540 |a © 1998.Astronomical Society of the Pacific. All rightsreserved. Printed in U.S.A. 
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650 4 |a Physical sciences  |x Astronomy  |x Astronomical objects  |x Binary systems  |x Binary stars 
650 4 |a Physical sciences  |x Physics  |x Fundamental forces  |x Electromagnetism  |x Electromagnetic interactions  |x Electromagnetic noise  |x Atmospherics 
650 4 |a Physical sciences  |x Astronomy 
650 4 |a Physical sciences  |x Astronomy  |x Observational astronomy 
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650 4 |a Physical sciences  |x Physics  |x Microphysics  |x Nuclear physics  |x Scintillation 
650 4 |a Physical sciences  |x Astronomy  |x Astronomical instrumentation  |x Telescopes 
650 4 |a Physical sciences  |x Metrology  |x Altimetry  |x Altitude 
650 4 |a Physical sciences  |x Physics  |x Mechanics  |x Fluid mechanics  |x Fluid dynamics  |x Turbulence 
650 4 |a Physical sciences  |x Astronomy  |x Astronomical objects  |x Binary systems  |x Binary stars 
650 4 |a Physical sciences  |x Physics  |x Fundamental forces  |x Electromagnetism  |x Electromagnetic interactions  |x Electromagnetic noise  |x Atmospherics 
650 4 |a Physical sciences  |x Astronomy 
650 4 |a Physical sciences  |x Astronomy  |x Observational astronomy 
650 4 |a Physical sciences  |x Metrology  |x Radiometry  |x Irradiance 
650 4 |a Applied sciences  |x Engineering  |x Optical engineering  |x Optical equipment  |x Eyepieces 
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700 1 |a Tallon, Michel  |e verfasserin  |4 aut 
700 1 |a Vernin, Jean  |e verfasserin  |4 aut 
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952 |d 110  |j 1998  |e 743  |h 86-91