The global oscillation network group site survey |
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| Authors: | Frank Hill George Fischer Jennifer Grier John W Leibacher Harrison B Jones Patricia P Jones Renate Kupke Robin T Stebbins |
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| Institution: | (1) National Solar Observatory, National Optical Astronomy Observatories, 85726 Tucson, AZ, USA;(2) Mathematics Department, University of Utah, 84112 Salt Lake City, UT, USA;(3) Lunar and Planetary Laboratory, University of Arizona, 85721 Tucson, AZ, USA;(4) NASA/GSFC, Southwest Station, 85726 Tucson, AZ, USA;(5) Center for Computing and Information Technology, University of Arizona, 85721 Tucson, AZ, USA;(6) Institute for Astronomy, University of Hawaii, 96822 Honolulu, HI, USA;(7) Joint Institute for Laboratory Astrophysics, University of Colorado, 80309 Boulder, CO, USA |
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| Abstract: | The Global Oscillation Network Group (GONG) Project is planning to place a set of instruments around the world to observe solar oscillations as continuously as possible for at last three years. The Project has now chosen the sites that will comprise the network. This paper describes the methods of data collection and analysis that were used to make this decision.Solar irradiance data were collected with a one-minute cadence at fifteen sites around the world and analyzed to produce statistics of cloud cover, atmospheric extinction, and transparency power spectra at the individual sites. Nearly 200 reasonable six-site networks were assembled from the individual stations, and a set of statistical measures of the performance of the networks was analyzed using a principal component analysis. An accompanying paper presents the results of the survey. |
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