GONG Inter-site Hα Flare Comparison

Eclipse on the Coral Sea: Cycle 24 Ascending

物理学;天文学

Giersch, Owen^1,2

Australian Bureau of Meteorology, IPS Radio and Space Service, Learmonth Solar Observatory, Exmouth, WA, Australia^1

Curtin Universty of Technology, Bentley, WA, Australia^2

关键词: Correction factors;    Flare areas;    Global oscillation network groups;    H-alpha;    United States Air Force;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/440/1/012006/pdf
DOI  :  10.1088/1742-6596/440/1/012006

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

A challenge of the past few decades for the Solar Observing Optical Network (SOON), operated by the United States Air Force Weather Agency (AFWA), has been to obtain consistent flare brightness reporting for the same flare from different sites. Flare area is usually considered to be a more reliable measure, but significant variation of values between sites still occurs. The Global Oscillation Network Group (GONG) deployed a Hα patrol system in 2010. This provides a modern system with near identical equipment to compare flares from six different sites. The classification of flares and techniques of flare measurement will be briefly discussed. The results presented here suggest that even though different GONG sites report different flare areas and brightnesses, for some sites they vary in a consistent way allowing correction factors to be applied.