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Abstract Review
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| Authors |
| Name | | Affiliation |
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Frank Hill |
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National Solar Observatory |
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The ATST Site Survey Working Group |
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| Abstract |
| Session | | 1 (Instrumentation and observations to quantify the magnitude and distribution of atmospheric optical turbulence.) |
| Title | | 'The Advance Technology Solar Telescope Site Survey: Instrumentation, Results and application to adaptive optics systems modeling.' |
| Abstract | | The ATST site survey evaluated six sites were with a set of instrumentation that consisted of a solar differential image motion monitor, a scintillometer array, dust monitor, weather station, and miniature coronagraph. The site survey data was used to compare the test sites in terms of statistics of the fraction of clear time, seeing, dust levels, sky brightness, water vapor, and weather. We will describe the instrumentation and summarize the site survey results, which led to the selection of Haleakala as the ATST site. Haleakalā was selected due to its high quantities of excellent seeing and its very dark sky with little seasonal variation. We used the extensive site survey data combined with Cn2 profile measurements from previous survey activity at Haleakala and recent measurements from Mauna Kea to perform adaptive optics systems modeling for ATST’s conventional AO system and a possible future MCAO system. The resulting performance predictions will be summarized. ATST’s future needs for atmospheric characterization of the Haleakala site will be discussed.
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