Estimation of atmospheric optical turbulence profiles in different environments based on Tatarski parameterization scheme

Jun, 蔡俊 Cai; Xuebin, 李学彬 Li; Pengfei, 武鹏飞 Wu; Xiaoqing, 吴晓庆 Wu

doi:10.3788/irla201847.1111002

Cited by 2 publications

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“…It is located between the Earth's surface and the troposphere and plays a crucial role in climate, weather and ecosystems [1][2][3][4][5]. Measurements and studies of atmospheric optical turbulence originated from land at the beginning, and then gradually developed in the direction of the oceans [6,7], and the investigation of reliable optical turbulence patterns in the marine environment is crucial for marine optical turbulence, and scientists strive to reveal the nature and laws of turbulence by means of observations, theoretical simulations and numerical simulations to improve the prediction of turbulence [8][9][10][11], so it is important to study the changing characteristics of marine optical turbulence within the atmospheric boundary layer. Wu turbulence through the multi-dimensional statistical evaluation of astronomical parameters [14].…”

Section: Introductionmentioning

confidence: 99%

Comparison of refractive index structure constants in different models within the atmospheric boundary layer

ying,

tao,

shiyong

et al. 2024

Sixth Conference on Frontiers in Optical Imaging and Technology: Applications of Imaging Technologies

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The atmospheric boundary layer is the layer most closely associated with human life, and the occurrence and development of atmospheric optical turbulence in the atmospheric boundary layer are of great significance for atmospheric optical transport, etc. Meanwhile, the study of optical turbulence in the whole ocean environment is also of vital importance, and it is important to statistically analyze the variations of the atmospheric optical turbulence parameters by using the existing optical turbulence models due to the lack of ocean data. In this paper, the atmospheric turbulence parameters are estimated by different external scale models (HMNSP99, Dewan, HV and WSTG models), and the atmospheric refractive index structure constant（C2n） computed by different models are compared by using the coastal sounding measured data, through error analysis and correlation studies, it has been found that the HV model changes with height in the atmospheric boundary layer, but cannot reflect the characteristics of the change of C2n well. The HMNSP99 model is about one order of magnitude smaller than the measured data, while the WSTG model is about one order of magnitude larger than the measured data. However, the trends of the two models are in good agreement. In contrast, the Dewan model and the HMNSP99 model show good consistency with the measured data, and the correlation is above 0.6. The Dewan and HMNSP99 model are closer in magnitude to the measured data, therefore, when studying optical turbulence parameters in the atmospheric boundary layer, the Dewan and HMNSP99 models are more reliable. They can also provide key indicators for optical turbulence prediction and astronomical site selection.

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Section: Introductionmentioning

confidence: 99%

Comparison of refractive index structure constants in different models within the atmospheric boundary layer

ying,

tao,

shiyong

et al. 2024

Sixth Conference on Frontiers in Optical Imaging and Technology: Applications of Imaging Technologies

View full text Add to dashboard Cite

show abstract

“…Ruggiero & DeBenedictis (2002) used sounding data to propose an outer scale model that is similar to the outer scale model structure of Dewan (1993), but includes not only the wind shear but also the temperature gradients. This outer scale model was widely used to estimate turbulence profiles (Jun et al 2018;Qing et al 2020) Ellison (1957) to quantify the scale of water body turnover. The new model has a rigorous physical basis and an inexpensive computational cost.…”

Section: Introductionmentioning

confidence: 99%

A Simple Method to Estimate the Refractive Index Structure Parameter (${C}_{n}^{2}$) in the Atmosphere

et al. 2020

PASP

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This paper proposes a simple physics-based method for estimating the C n 2 profile in the lower atmosphere, using the Ellison scale as a measure of the outer turbulence scale. The new approach only Requires the temperature profile as an input to obtain the profile of the outer turbulence scale, followed by the C n 2 profile. Using sounding data from Lhasa (Tibet) C n 2 profiles were estimated using three outer scale models (Thorpe, HMNSP99, and Ellison) and compared with the measured C n 2 profile. Results show that the Ellison scale method offers better results as a profile estimator than the other two methods. Compared with the measured C n 2 profile, the average relative error of the Ellison scale method is generally lower than 8%, with a correlation coefficient larger than 0.5.

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Estimation of atmospheric optical turbulence profiles in different environments based on Tatarski parameterization scheme

Cited by 2 publications

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Comparison of refractive index structure constants in different models within the atmospheric boundary layer

Comparison of refractive index structure constants in different models within the atmospheric boundary layer

A Simple Method to Estimate the Refractive Index Structure Parameter (${C}_{n}^{2}$) in the Atmosphere

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