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THE CALIFORNIA SITE SURVEY

MERLE F. WALKER
Publications of the Astronomical Society of the Pacific
Vol. 82, No. 487 (June 1970), pp. 672-698
Stable URL: http://www.jstor.org/stable/40674892
Page Count: 27
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
THE CALIFORNIA SITE SURVEY
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Abstract

This paper summarizes the results of a two-year survey of potential darksky observing sites in California south of the latitude of San Francisco. This survey was undertaken in 1965 to locate a new site for future large optical telescopes since the growth of lights and smog near Mount Hamilton are increasingly limiting the usefulness of that site for observations of very faint objects and for photometry. The best observing conditions appear to occur along the coast, very close to the ocean where the cold ocean current holds down the height of the inversion layer, and where there exists a laminar airflow off the ocean, minimizing the optical turbulence and placing the site upwind from sources of smog.

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