What question did this study set out to answer?

This research aims to analyze the radial distribution of various physical characteristics in the lightning return stroke channel to understand discharge processes better.

March 25, 2026Journal of Geophysical Research AtmospheresOpen Access

Radial Distribution of Physical Characteristics in the Peripheral Corona Sheath at the Peak‐Current Stage of Return Stroke

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Authors

HDHai DengFlorida International University PYPing YuanTianjin University TATingting AnNorthwest Normal University

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Overview

Research investigates physical characteristics of lightning return stroke channels, implying mechanisms of discharge.

Key Points

This research aims to analyze the radial distribution of various physical characteristics in the lightning return stroke channel to understand discharge processes better.
Analyzed the spectra of lightning return strokes alongside ground electric field variations.
Applied plasma transport theory to investigate temperature, pressure, conductivity, and particle densities.
Examined radial distributions at the peak-current stage of return stroke.
Temperature decays logarithmically with radial distance, while pressure declines more rapidly.
Electron densities in the core channel are primarily due to ionization, with single-ionized ions prevailing.
Conductivity diminishes logarithmically, dropping to values near 10−12 to 10−13 S/m at the channel's luminous edge.

Cite This Study

Deng et al. (2026) studied this question.

synapsesocial.com/papers/69c37b33b34aaaeb1a67d690 https://doi.org/10.1029/2025jd045054

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March 25, 2026Journal of Geophysical Research AtmospheresOpen Access

Radial Distribution of Physical Characteristics in the Peripheral Corona Sheath at the Peak‐Current Stage of Return Stroke

View Full Paper

Ask AI

Bookmark

Authors

HDHai DengFlorida International University PYPing YuanTianjin University TATingting AnNorthwest Normal University

Discussion

Member takes

Overview

Research investigates physical characteristics of lightning return stroke channels, implying mechanisms of discharge.

Key Points

This research aims to analyze the radial distribution of various physical characteristics in the lightning return stroke channel to understand discharge processes better.
Analyzed the spectra of lightning return strokes alongside ground electric field variations.
Applied plasma transport theory to investigate temperature, pressure, conductivity, and particle densities.
Examined radial distributions at the peak-current stage of return stroke.
Temperature decays logarithmically with radial distance, while pressure declines more rapidly.
Electron densities in the core channel are primarily due to ionization, with single-ionized ions prevailing.
Conductivity diminishes logarithmically, dropping to values near 10−12 to 10−13 S/m at the channel's luminous edge.

Cite This Study

Deng et al. (2026) studied this question.

synapsesocial.com/papers/69c37b33b34aaaeb1a67d690 https://doi.org/10.1029/2025jd045054

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