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Related Concept Videos

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Related Experiment Video

Updated: Mar 21, 2026

Resolving Water, Proteins, and Lipids from In Vivo Confocal Raman Spectra of Stratum Corneum through a Chemometric Approach
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Application of the lamp mapping technique for overlap function for Raman lidar systems.

Monique Walker, Demetrius Venable, David N Whiteman

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    |May 4, 2016
    PubMed
    Summary

    A new lamp mapping technique (LMT) offers an experimental method for lidar water vapor mixing ratio (WVMR) overlap correction. This LMT-based method shows results deviating within 5% of traditional radiosonde corrections.

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    Area of Science:

    • Atmospheric Science
    • Optical Remote Sensing
    • Instrument Calibration

    Background:

    • Lidar water vapor mixing ratio (WVMR) measurements traditionally require overlap correction using external instruments like radiosondes.
    • Accurate overlap correction is crucial for reliable WVMR data retrieval from lidar systems.

    Purpose of the Study:

    • To introduce and validate a novel experimental method, the lamp mapping technique (LMT), for determining lidar overlap functions.
    • To assess the performance of LMT-derived overlap functions for individual lidar channels and for WVMR retrieval.

    Main Methods:

    • The study employs the lamp mapping technique (LMT), which utilizes a scanned halogen lamp and the lidar's optical and detection system.
    • LMT involves synchronizing the lamp scan with the Raman lidar telescope and detection system.

    Main Results:

    • The research presents overlap functions determined using LMT for individual lidar channels.
    • LMT-determined WVMR overlap functions were obtained and compared with traditional methods.

    Conclusions:

    • The LMT provides a viable, instrument-based method for determining lidar overlap functions.
    • LMT-derived WVMR overlap functions demonstrate good agreement with radiosonde-based corrections, with deviations within 5%.