Low-Frequency Behavior of Turbulence Fluctuations at Mount Wilson Observatory

Details Low-Frequency Behavior of Turbulence Fluctuations at Mount Wilson Observatory Low-Frequency Behavior of Turbulence Fluctuations at Mount Wilson Observatory

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apjs..172..720w&link_type=abstract

The Astrophysical Journal Supplement Series, Volume 172, Issue 2, pp. 720-731.

Astronomy and Astrophysics

Astronomy

1

Atmospheric Effects, Techniques: Interferometric, Turbulence

Scientific paper

Measurements and analysis of large-scale turbulent irregularities in the atmosphere are reported. Results were obtained from precision measurement of atmospheric temperature fluctuations at 24 and 70 feet above ground for a variety of wind velocities at the Mount Wilson Observatory. Measurements were made as wind blew air past detectors, at frequencies of 0.01-10 Hz, corresponding to distances in the atmosphere between about 1 and 250 m. Analysis shows that large-scale turbulences fit the Greenwood-Tarazano model well, and notably better than the von Karman model of turbulence.

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