OPTICAL EFFECTS OF NEAR-GROUND TURBULENCE AT THE VAN NORMAN LAKE SOLAR OBSERVATORY SITE.
Rept. for Dec 65-Jan 67,
AEROSPACE CORP EL SEGUNDO CA LABS DIV
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The distortion of light wavefronts by atmospheric turbulence in the first 15 m above ground was measured at a solar observatory site near Sylmar, California. It is inferred from these data that seldom if ever should near-ground turbulence significantly degrade the resolution of a solar telescope to be installed at this site. Comparison of the measured values of near-ground turbulence with simultaneous estimates of solar seeing quality showed essentially no correlation between the two variables. The instrument used to measure wavefront distortion, a differential-interferometer seeing meter being developed in these laboratories, is described.
- Atmospheric Physics