Comparative solar seeing and scintillation studies at the Fuxian Lake solar station

	Comparative solar seeing and scintillation studies at the Fuxian Lake solar station
	Liu Z(刘忠)1; Beckers, JM 2
刊名	SOLAR PHYSICS
	2001
卷号	198 期号:1 页码:197-209
ISSN号	0038-0938
通讯作者	Zhong, L (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming, Peoples R China.
产权排序	第一完成单位
英文摘要	Starting November 1999 we are carrying out simultaneous seeing observations with the Solar Differential Image Motion Monitor (S-DIMM) at the Fuxian Lake station of the Yunnan Observatory and a solar scintillometer of the type used in the recent site survey by one of us (Beckers et al., 1997). The purpose was to compare the two methods of assessing the daytime atmospheric seeing for a lake site. We report here the first results of this comparison. We find that the relation between the seeing as measured by the S-DIMM (the Fried parameter r(0)) and the scintillation in the solar irradiance (sigma (I)) differs greatly from the relation found by Seykora (1993) for NSO/Sac Peak. We conclude that the sigma (I) measurements give a good indication for the amount of near-Earth seeing but that they are a poor proxy for the total atmospheric seeing. We interpret the simultaneous (r(0), sigma (I)) observations in terms of an atmospheric seeing model and find good quantitative agreement with a model in which a fraction (alpha) of the seeing originated near the Earth (ground or water) and the rest (1-alpha) originates at higher layers. For lake sites alpha is small all day and the seeing is determined primarily by the refractive index variations at higher atmospheric layers. For land sites alpha is small in the early morning but rapidly increases as the day progresses, near-Earth seeing dominating there most of the time.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
收录类别	SCI
原文出处	http://link.springer.com/article/10.1023%2FA%3A1005262911134
语种	英语
WOS记录号	WOS:000166870200012
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4678]
专题	云南天文台_抚仙湖太阳观测站
作者单位	1.Yunnan Observatory, Chinese Academy of Siences, Kunming, PR China 2.National Solar Observatory/NOAO, Sunspot, NM, 88349, U.S.A.
推荐引用方式 GB/T 7714	Liu Z,Beckers, JM. Comparative solar seeing and scintillation studies at the Fuxian Lake solar station[J]. SOLAR PHYSICS,2001,198(1):197-209.
APA	Liu Z,&Beckers, JM.(2001).Comparative solar seeing and scintillation studies at the Fuxian Lake solar station.SOLAR PHYSICS,198(1),197-209.
MLA	Liu Z,et al."Comparative solar seeing and scintillation studies at the Fuxian Lake solar station".SOLAR PHYSICS 198.1(2001):197-209.