Processes in negative and positive CG lightning flashes detected from space by GLM

Leal, Adonis F.R.; Rakov, Vladimir A.

doi:10.1016/j.epsr.2024.110183

Electric Power Systems Research

2024

DOI: 10.1016/j.epsr.2024.110183

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Processes in negative and positive CG lightning flashes detected from space by GLM

Adonis F.R. Leal,

Vladimir A. Rakov

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Cited by 2 publications

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Investigation of GLM detections of negative continuing currents observed by high-speed video and narrow-band 777 nm photometer

Roncancio,

Montanyà,

López

et al. 2025

Electric Power Systems Research

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Investigation of GLM detections of negative continuing currents observed by high-speed video and narrow-band 777 nm photometer

Roncancio,

Montanyà,

López

et al. 2025

Electric Power Systems Research

View full text Add to dashboard Cite

Continuing Current Seen Above and Below the Cloud: Comparing Observations From GLM and High‐Speed Video Cameras

Ding,

Zhu,

Lapierre

et al. 2024

Geophysical Research Letters

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This study assesses the reliability and limitations of the Geostationary Lightning Mapper (GLM) in detecting continuing currents by comparing observations from ground‐based high‐speed cameras with GLM‐16 data. Our findings show that the GLM's one‐group detection efficiency (DE_1) is 53%, while the more stringent five‐consecutive‐group detection efficiency (DE_5) is 10%. Optical signals detected by the GLM predominantly occur during the early stages of continuing currents. Additionally, there is a notable disparity in detection efficiencies between positive and negative continuing currents, with positive continuing currents being detected more frequently. The application of the logistic regression model developed by Fairman and Bitzer (2022) further illustrates the limitations in continuing current identification. The study underscores the challenges of relying solely on satellite data to monitor and analyze continuing currents, emphasizing the need for advancements in detection technologies and methodologies to reliably detect continuing current at a large spatial scale.

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Processes in negative and positive CG lightning flashes detected from space by GLM

Cited by 2 publications

References 32 publications

Investigation of GLM detections of negative continuing currents observed by high-speed video and narrow-band 777 nm photometer

Investigation of GLM detections of negative continuing currents observed by high-speed video and narrow-band 777 nm photometer

Continuing Current Seen Above and Below the Cloud: Comparing Observations From GLM and High‐Speed Video Cameras

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