Modelling atmospheric turbulence effects on ground-based telescope systems

Conference · Thu Sep 30 00:00:00 EDT 1993

OSTI ID:10108347

Bradford, L W; Flatte, S M ^[1]; Max, C E ^[2]

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1. California Univ., Santa Cruz, CA (United States). Dept. of Physics
2. Lawrence Livermore National Lab., CA (United States)

Questions still exist concerning the appropriate model for turbulence- induced phase fluctuations seen in ground-based telescopes. Bester et al. used a particular observable (slope of the Allan variance) with an infrared interferometer in an attempt to distinguish models. The authors have calculated that observable for Kolmogorov and {open_quotes}random walk{close_quotes} models with a variety of outer scales and altitude-dependent turbulence and wind velocity. The authors have found that clear distinction between models requires good data on the vertical distribution of wind and turbulence. Furthermore, measurements at time separations of order 60 s are necessary to distinguish the {open_quotes}random walk{close_quotes} model from the Kolmogorov model.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 10108347
• Report Number(s): UCRL-JC-115309; CONF-9306245-2; ON: DE94004211; TRN: 94:000039
• Resource Relation: Conference: North Atlantic Treaty Organization/Advanced Study Institute (NATO/ASI) conference on adaptive optics for astronomy,Cargese (France),29 Jun - 9 Aug 1993; Other Information: PBD: 30 Sep 1993
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
TELESCOPES
SENSITIVITY
TURBULENCE
STATISTICAL MODELS
EARTH ATMOSPHERE
REFRACTIVE INDEX
FLUCTUATIONS
WIND
OPTICS
KOLMOGOROV EQUATION
ATMOSPHERIC CIRCULATION
SIGNAL DISTORTION
440600
661300
990200
OPTICAL INSTRUMENTATION
OTHER ASPECTS OF PHYSICAL SCIENCE
MATHEMATICS AND COMPUTERS