The Global Oscillation Network Group site survey, 2: Results

Details The Global Oscillation Network Group site survey, 2: Results The Global Oscillation Network Group site survey, 2: Results

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994soph..152..351h&link_type=abstract

Solar Physics, vol. 152, no. 2, p. 351-379

Physics

Optics

24

Atmospheric Optics, Helioseismology, Performance Prediction, Power Spectra, Principal Components Analysis, Solar Oscillations, Statistical Analysis, Statistical Correlation, Cloud Cover, Correlation Coefficients, Eigenvalues, Eigenvectors, Signal To Noise Ratios

Scientific paper

The Global Oscillation Network Group (GONG) Project will place a network of instruments around the world to observe solar oscillations as continuously as possible for three years. The Project has now chosen the six network sites based on analysis of survey data from fifteen sites around the world. The chosen sites are: Big Bear Solar Observatory, California; Mauna Loa Solar Observatory, Hawaii; Learmonth Solar Observatory, Australia; Udaipur Solar Observatory, India; Observatorio del Teide, Tenerife; and Cerro Tololo Interamerican Observatory, Chile. Total solar intensity at each site yields information on local cloud cover, extinction coefficient, and transparency fluctuations. In addition, the performance of 192 reasonable networks assembled from the individual site records is compared using a statistical principal components analysis. An accompanying paper descibes the analysis methods in detail; here we present the results of both the network and individual site analyses. The selected network has a duty cycle of 93.3%, in good agreement with numerical simulations. The power spectrum of the network observing window shows a first diurnal sidelobe height of 3 x 10-4 with respect to the central component, an improvement of a factor of 1300 over a single site. The background level of the network spectrum is lower by a factor of 50 compared to a single-site spectrum.

Affiliated with

Also associated with

No associations

Rating

The Global Oscillation Network Group site survey, 2: Results does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Global Oscillation Network Group site survey, 2: Results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Global Oscillation Network Group site survey, 2: Results will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-824196