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Sagamore Hill Radio Observatory : ウィキペディア英語版 | Sagamore Hill Radio Observatory
The Sagamore Hill Solar Radio Observatory is a solar radio observatory located in Hamilton, Massachusetts, that operates on a daily basis to obtain scientific observations of the Sun. It is a functional component of the Radio Solar Telescope Network (RSTN).〔(【引用サイトリンク】url=http://www.afweather.af.mil/library/factsheets/factsheet.asp?id=16521 )〕 == History ==
It became apparent in the early 1960s that certain space weather events might interfere with the U.S. objective of putting a man on the moon. Foremost among these concerns was the possibility of a geomagnetic storm of solar origin. Metric Type II radio bursts, signatures of coronal shock waves or coronal mass ejections, were known to be commonly associated with solar flares. The United States Air Force Research Laboratory (AFRL) was thus assigned the task of developing and validating a network of ground-based solar observatories. AFRL established a world-wide network of sweep frequency recorders from which estimates of the shock speed in the corona could be made. The prototype was assembled and operated at Sagamore Hill during the early 1960s. The observatory began operating solar patrols in 1966.〔Guidice, D. A. & Eadon, E. J., "Sagamore Hill Radio Observatory, Air Force Geophysics Laboratory, Hanscom Air Force Base, Massachusetts 01731. Report". Bulletin of the Astronomical Society, Vol. 13, p. 400〕 The Air Force Geophysics Laboratory (AFGL) transferred operation of the observatory to the Air Force in October 1978. The observatory is now officially Detachment 2, 2nd Weather Squadron of the 2nd Weather Group of the Air Force Weather Agency (AFWA). The 2nd Weather Squadron currently operates other RSTN observatories at Kaena Point, Hawaii; San Vito dei Normanni, Italy; and Learmonth, Western Australia.〔
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