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Updated: Oct 22, 2026

Split Point Analysis and Uncertainty Quantification of Thermal-Optical Organic/Elemental Carbon Measurements
Published on: September 7, 2019
Refined runway visual range measurement model incorporating brown carbon aerosol effects
1College of Air Traffic Management, Civil Aviation University of China, Tianjin 300300, China.
Abstract:
Runway visual range (RVR) is a pivotal meteorological metric governing low-visibility civil aviation operations. Conventional RVR calculation frameworks mainly account for black carbon and scattering aerosols, yet brown carbon (BrC), with pronounced wavelength-selective absorption, induces two unrecognized systematic errors via extinction spectral mismatch and chromatic visual threshold deviation, with its influence mechanisms largely uncharacterized. This Letter presents a refined RVR model explicitly incorporating BrC's chromatic optical effects. Experimental validation verifies its efficacy, providing quantitative support for advancing RVR observation standards and enhancing low-visibility measurement fidelity.
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