Optical turbulence profiling with single star SCIDAR technique

Liu, Liyong; Yao, Yongqiang; Vernin, J.; Wang, Hongshuai; Chadid, M.; Wang, Yiping; Giordano, Christophe; Yin, Jiabo; Qian, Xuan

doi:10.1007/s11434-013-6083-9

Cited by 3 publications

(1 citation statement)

References 30 publications

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“…The Tibet Ali site is considered to be one of the best sites in east Asia (Liu et al 2015a;Ye et al 2016) and has been selected as one of the potential sites for the LOT. The site-testing data are obtained with the method discussed in Liu et al (2010), Liu et al (2013) and Liu et al (2015b). Because this method does not allow ground-layer turbulence measurement, we will set the GLAO system telescope to 100 m lower than the lowest layer of measured turbulence-profile data, and randomly select two nights of site-testing data with different seeing conditions to show the performance variation in these conditions.…”

Section: A S E R G U I D E S Ta R S Y S T E M S T U Dymentioning

confidence: 99%

OUP accepted manuscript

Jia

Basden

Osborn

2018

MNRAS

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Section: A S E R G U I D E S Ta R S Y S T E M S T U Dymentioning

confidence: 99%

OUP accepted manuscript

Jia

Basden

Osborn

2018

MNRAS

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Multi-instrument characterization of optical turbulence at the Ali observatory

Liu

Yao

Vernin

et al. 2015

J. Phys.: Conf. Ser.

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Optical turbulence characterization at LAMOST site: observations and models

Liu

Giordano

Yao

et al. 2015

Mon. Not. R. Astron. Soc.

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Atmospheric optical turbulence seriously limits the performance of high angular resolution instruments. An 8-night campaign of measurements was carried out at the LAMOST site in 2011, to characterize the optical turbulence. Two instruments were set up during the campaign: a Differential Image Motion Monitor (DIMM) used to measure the total atmospheric seeing, and a Single Star Scidar (SSS) to measure the vertical profiles of the turbulence C 2 n (h) and the horizontal wind velocity V(h). The optical turbulence parameters are also calculated with the Weather Research and Forecasting (WRF) model coupled with the Trinquet-Vernin model, which describes optical effects of atmospheric turbulence by using the local meteorological parameters. This paper presents assessment of the optical parameters involved in high angular resolution astronomy. Its includes seeing, isoplanatic angle, coherence time, coherenceétendue, vertical profiles of optical turbulence intensity C 2 n (h) and horizontal wind speed V(h). The median seeing is respectively 1.01 arcsec, 1.17 arcsec and 1.07arcsec as measured with the DIMM, the SSS and predicted with WRF model. The history of seeing measurements at the LAMOST site are reviewed, and the turbulence measurements in this campaign are compared with other astronomical observatories in the world.

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Optical turbulence profiling with single star SCIDAR technique

Cited by 3 publications

References 30 publications

OUP accepted manuscript

OUP accepted manuscript

Multi-instrument characterization of optical turbulence at the Ali observatory

Optical turbulence characterization at LAMOST site: observations and models

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