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Related Experiment Video

Updated: Jun 14, 2026

Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
11:34

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Published on: May 15, 2017

Temperature profiling by Rayleigh-scattering lidar.

R L Schwiesow, L Lading

    Applied Optics
    |March 25, 2010
    PubMed
    Summary
    This summary is machine-generated.

    High spectral resolution lidar accurately measures atmospheric temperature profiles. This technique uses Rayleigh scattering and interferometry for precise, high-resolution temperature data up to 5 km.

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    Area of Science:

    • Atmospheric physics
    • Optical remote sensing
    • Spectroscopy

    Background:

    • Accurate atmospheric temperature profiles are crucial for weather forecasting and climate modeling.
    • Traditional methods for measuring temperature profiles can be limited in resolution or speed.

    Purpose of the Study:

    • To present a novel lidar technique for high-resolution atmospheric temperature profiling.
    • To demonstrate the feasibility of using spectral information from Rayleigh scattering for temperature measurements.

    Main Methods:

    • Utilizing a high spectral resolution lidar system with two stabilized Michelson interferometers.
    • Measuring the temperature-dependent Rayleigh-scattering linewidth.
    • Analyzing flux ratios from photomultipliers to derive temperature.

    Main Results:

    • Achieving temperature profile measurements with a standard deviation of 1 K.
    • Obtaining a height resolution of 50 meters.
    • Demonstrating measurements up to 5 km altitude.
    • Requiring only 1.25 minutes for data acquisition with a 1-W laser and 30-cm telescope.

    Conclusions:

    • High spectral resolution lidar is a viable and efficient method for accurate atmospheric temperature profiling.
    • The described technique offers significant advantages in resolution and speed compared to existing methods.