Wavelength correction of refractivity variation measurements

Area of Science:

• Atmospheric optics
• Optical turbulence
• Wave propagation

Background:

• Atmospheric turbulence causes variations in the refractive index structure constant (Cn2).
• Cn2 measurements are wavelength-dependent due to the refractive index's spectral properties.
• These variations impact optical systems and wave propagation through the atmosphere.

Purpose of the Study:

• To develop a technique for converting Cn2 measurements between different wavelengths.
• To enable more accurate atmospheric optical modeling by harmonizing data from various sources.
• To provide a practical example of converting Cn2 from centimeter to visible and near-infrared wavelengths.

Main Methods:

• The study describes a novel technique for inter-wavelength Cn2 conversion.
• Mathematical models are used to account for the refractive index's dependence on wavelength.
• Validation is performed using example conversions.

Main Results:

• A reliable method for converting Cn2 values across different spectral ranges was established.
• The conversion technique effectively addresses the wavelength dependency of Cn2.
• Successful conversion from centimeter to visible and near-IR wavelengths was demonstrated.

Conclusions:

• The developed technique allows for the standardization of Cn2 data across various wavelengths.
• This facilitates more accurate predictions of atmospheric optical effects.
• The findings are crucial for applications relying on optical wave propagation through the atmosphere.