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Member Since 2017
Yunjiao Pu
Research Scientist, Duke University
AGU Research
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Imaging Step Formation in In‐Cloud Lightning Initial Development With VHF Interferometry
GEOPHYSICAL RESEARCH LETTERS
03 january 2024
Yunjiao Pu, Steven A. Cummer
We investigate sequential processes underlying the initial development of in‐cloud lightning flashes in the form of initial breakdown pulses ...
Tracking Travelling Ionospheric Disturbances with LF/MF Radio Signals using Absolute Phase Variation
OBSERVATIONAL AND MODELING STUDIES OF IONOSPHERIC IRREGULARITIES AND SCINTILLATION III POSTER
spa-aeronomy | 15 december 2023
Yongze Jia, Yunjiao Pu, Steven A. Cummer
The lower ionosphere reflects radio waves across the VLF to MF band, making them good tools for tracking travelling ionospheric disturbances (TIDs). I...
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Terrestrial Gamma-ray Flash observations by the ALOFT flight campaign
ATMOSPHERIC AND SPACE ELECTRICITY QUICK STRIKES ELIGHTNING
atmospheric and space electricity | 13 december 2023
Martino Marisaldi, Nikolai Ostgaard, Timothy J. La...
The Airborne Lightning Observatory for FEGS and TGFs (ALOFT) was a field campaign for observing Terrestrial Gamma-ray Flashes (TGFs) and gamma-ray glo...
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Summary of the lightning ground measurements at the Island of San Andres to support the ALOFT flight campaign and ASIM
ENERGETIC RADIATION FROM LIGHTNING AND THUNDERSTORMS II POSTER
atmospheric and space electricity | 12 december 2023
Joan Montanya, Jose Andres Roncancio, Michele Urba...
The Airborne Lighting Observatory for FEGS and TGFs (ALOFT) was a field campaign for observing Terrestrial Gamma-ray Flashes (TGFs), gamma-ray glows f...
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Low Frequency Radio Measurements of TGFs and Lightning during the ALOFT Campaign
ENERGETIC RADIATION FROM LIGHTNING AND THUNDERSTORMS II POSTER
atmospheric and space electricity | 12 december 2023
Steven A. Cummer, Yunjiao Pu, Marni Pazos, Timothy...
The ALOFT campaign targeted aircraft measurements of terrestrial gamma-ray flashes (TGFs) through NASA ER-2 overflights of strong thunderstorms. We r...
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Step Formation in Intracloud Lightning Initial Breakdown Pulses with VHF Interferometry
PHYSICS OF STREAMERS, LEADERS, AND LIGHTNING DISCHARGE: HIGH-RESOLUTION OBSERVATIONS AND MODELING I POSTER
atmospheric and space electricity | 11 december 2023
Yunjiao Pu, Steven A. Cummer
The negative leader stepping process associated with initial breakdown pulses (IBPs) during initial IC lightning development at altitudes of 6.511.9 k...
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Determining a Lower Limit of Luminosity for the First Satellite Observation of a Reverse Beam Terrestrial Gamma Ray Flash Associated With a Cloud to Ground Lightning Leader
JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES
14 september 2023
Jeffrey M. Chaffin, Yunjiao Pu, David M. Smith, St...
We provide an updated analysis of the gamma ray signature of a terrestrial gamma ray flash (TGF) detected by the Fermi Gamma ray Burst Monitor firs...
Unsupervised Clustering and Supervised Machine Learning for Lightning Classification: Application to Identifying EIPs for Ground‐Based TGF Detection
JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES
03 may 2023
Yunjiao Pu, Steven A. Cummer, Fanchao Lyu, Yu Zhen...
We developed a framework merging unsupervised and supervised machine learning to classify lightning radio signals, and applied it to the possible d...