Vertical profiles of aerosol and optical turbulence strength and their effects on atmospheric propagation

2000 ◽  
Author(s):  
Norman S. Kopeika ◽  
Arkadi Zilberman
Keyword(s):  
Vertical Profiles ◽  
Optical Turbulence ◽  
Atmospheric Propagation

scholarly journals ASTROCLIMATIC STATISTICS AT THE SAYAN SOLAR OBSERVATORY

2020 ◽  
Vol 6 (1) ◽  
pp. 126-133
Author(s):  
Artem Shikhovtsev ◽  
Pavel Kovadlo ◽  
Aleksandr Kiselev
Keyword(s):  
Adaptive Optics ◽  
Solar Observatory ◽  
Line Of Sight ◽  
Solar Telescope ◽  
Vertical Profiles ◽  
Minimum Level ◽  
Optical Turbulence ◽  
Low Intensity ◽  
Spatial Features ◽  
Adaptive Optics System

The paper analyzes meteorological and optical characteristics of the atmosphere at the Sayan Solar Observatory (SSO) and the future 3 m Large Solar Telescope (LST-3). We examine spatial features of changes in astroclimatic characteristics for the Sayan Solar Observatory and Baikal Astrophysical Observatory (BAO). We have obtained a vertical profile of the structural characteristic of air refractive index fluctuations for a low intensity optical turbulence along the line of sight. This profile is an important result because it will allow us to adjust the adaptive optics system of LST-3 to the best astroclimatic conditions when the correction efficiency is maximal. In order to analyze vertical profiles of optical turbulence characteristics and to assess the contribution of individual atmospheric layers to the isoplanatic angle for a minimum level of total turbulence, we give recommendations for the design of multi-conjugated adaptive optics in general and for LST-3 in particular.

scholarly journals SCIDAR: an optical turbulence profiler for Dome A

2012 ◽  
Vol 8 (S288) ◽  
pp. 316-317
Author(s):  
Li-Yong Liu ◽  
Yong-Qiang Yao ◽  
Jean Vernin ◽  
Merieme Chadid ◽  
Hong-Shuai Wang ◽  
...  
Keyword(s):  
Wind Speed ◽  
Turbulence Intensity ◽  
Cross Correlation ◽  
Weather Conditions ◽  
Short Exposure ◽  
Vertical Profiles ◽  
Optical Turbulence ◽  
Dome A ◽  
Single Star ◽  
Portable Monitor

AbstractThis paper introduces a plan to detect turbulence profiles at Dome A with a Single Star Scidar (SSS), to enhance our understanding of the characteristics of the site. The development of a portable monitor for profiling vertical atmospheric optical turbulence and wind speed is presented. By analyzing the spatial auto and cross-correlation functions of very short exposure images of single star scintillation patterns, the SSS can provide the vertical profiles of turbulence intensity C2n(h) and wind speed V(h). A SSS prototype is already operational at Ali in Tibet which will be improved in order to become fully robotic and adapted to extreme weather conditions that prevail at Dome A in Antarctica.

scholarly journals ASTROCLIMATIC STATISTICS AT THE SAYAN SOLAR OBSERVATORY

2020 ◽  
Vol 6 (1) ◽  
pp. 102-107
Author(s):  
Artem Shikhovtsev ◽  
Pavel Kovadlo ◽  
Aleksandr Kiselev
Keyword(s):  
Adaptive Optics ◽  
Solar Observatory ◽  
Line Of Sight ◽  
Solar Telescope ◽  
Vertical Profiles ◽  
Minimum Level ◽  
Optical Turbulence ◽  
Low Intensity ◽  
Spatial Features ◽  
Adaptive Optics System

The paper analyzes meteorological and optical characteristics of the atmosphere at the Sayan Solar Observatory (SSO) and the future 3 m Large Solar Telescope (LST-3). We examine spatial features of changes in astroclimatic characteristics for the Sayan Solar Observatory and Baikal Astrophysical Observatory (BAO). We have obtained a vertical profile of the structural characteristic of air refractive index fluctuations for a low intensity optical turbulence along the line of sight. This profile is an important result because it will allow us to adjust the adaptive optics system of LST-3 to the best astroclimatic conditions when the correction efficiency is maximal. In order to analyze vertical profiles of optical turbulence characteristics and to assess the contribution of individual atmospheric layers to the isoplanatic angle for a minimum level of total turbulence, we give recommendations for the design of multi-conjugated adaptive optics in general and for LST-3 in particular.

Total columns and vertical profiles of ozone above Kyiv in 2005‒2008

2010 ◽  
Vol 16 (4) ◽  
pp. 3-12
Author(s):  
A.V. Shavrina ◽  
◽  
M. Kroon ◽  
V.A. Sheminova ◽  
Ya.V. Pavlenko ◽  
...  
Keyword(s):  
Vertical Profiles
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