The ATST seeing monitor: February 2002 observations at Fuxian Lake

	The ATST seeing monitor: February 2002 observations at Fuxian Lake
	Beckers, Jacques M.; Liu Z(刘忠); Jin ZY(金振宇); Briggs, John W.; Fletcher, Steven; Gregory, Scott; Hill, Frank; Leon, Ed.; Radick, Rich; Wilkins, Larry
	2003
会议名称	Conference on Innovative Telescopes and Instrumentation for Solar Astrophysics
会议日期	2002-08-24
会议地点	Waikoloa, HI, United states
卷号	4853
页码	273-284
通讯作者	Beckers, J.M.
英文摘要	We describe a solar seeing monitor used for the site testing for the 4 meter US Advanced Technology Solar Telescope and the 1 meter Yunnan Observatory Solar Telescope. It has two parts: a solar Differential Image Motion Monitor (S-DIMM) and a linear array of 6 solar scintillometers (SHABAR = SHAdow BAnd Ranger). The results obtained by both methods are compared on the basis of observations obtained in February 2002 at the Yunnan Observatory Fuxian Lake solar station. Analysis showed that these two ways of measuring the Fried parameter give consistent results. We confirm earlier observations that showed that the boundary layer seeing over lakes is strongly suppressed. The amount of this boundary layer seeing depends on the temperature difference between lake and air and on the wind velocity. We have also carried out seeing observations along a 9.15 km horizontal path across the lake. The Cn2 values derived from these is consistent with the solar observations. They confirm the dependence of Cn2 on the lake-to-air temperature difference. From the SHABAR we find a typical scale height for the boundary layer seeing of 20 meters and from inter-comparison of the S-DIMM and SHABAR observations we derive an outer scale of turbulence of about 50 meters.
收录类别	EI ; CPCI
产权排序	第二完成单位
会议网址	http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=876368
会议录	PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) - INNOVATIVE TELESCOPES AND INSTRUMENTATION FOR SOLAR ASTROPHYSICS
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING
会议录出版地	1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
学科主题	Instruments & Instrumentation; Optics; Spectroscopy
语种	英语
ISSN号	0277-786X
ISBN号	0-8194-4626-2
内容类型	会议论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4843]
专题	云南天文台_抚仙湖太阳观测站
推荐引用方式 GB/T 7714	Beckers, Jacques M.,Liu Z,Jin ZY,et al. The ATST seeing monitor: February 2002 observations at Fuxian Lake[C]. 见:Conference on Innovative Telescopes and Instrumentation for Solar Astrophysics. Waikoloa, HI, United states. 2002-08-24.http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=876368.