MC
Member Since 2005
Morris Cohen
Associate Professor, School of Electrical and Computer Engineering, Georgia Institute of Technology
AGU Research
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Effect of Ground Conductivity on VLF Wave Propagation
RADIO SCIENCE
18 march 2025
Pauline Teysseyre, Carine Briand, Robert A. Marsha...
Very Low Frequency (VLF, 3–30 kHz) waves propagate long distances in the waveguide formed by the Earth and the lower ionosphere. Externa...
VLF and ELF Sensing of the Lower Ionosphere Under Solar Eclipse Conditions
RESULTS FROM THE 2023 AND 2024 SOLAR ECLIPSES: A FOCUS ON THE M-I-T RESPONSE II POSTER
spa-aeronomy | 13 december 2024
Mark Golkowski, Zenon Nieckarz, Oleksiy V. Agapito...
Solar eclipses are rare opportunities to study the short timescale dynamics of the lower ionosphere, specifically, the ionospheric D-region. It is wel...
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Ionospheric VLF Response to the 2024 Total Solar Eclipse
RESULTS FROM THE 2023 AND 2024 SOLAR ECLIPSES: A FOCUS ON THE M-I-T RESPONSE II POSTER
spa-aeronomy | 13 december 2024
Campbell Depken, Morris Cohen
The D-region of the ionosphere (60-90 km) is energized by solar radiation and impacts the propagation of radio waves. Very low frequency (VLF, 3-30 kH...
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Modeling Ionosphere Electron Density Using Machine Learning to Determine the Impact of X-Ray Flux Over Time
DYNAMICS OF THE THERMOSPHERE AND IONOSPHERE SYSTEM AT LOW, MIDDLE, AND SUBAURORAL LATITUDES DRIVEN BY EXTERNAL AND INTERNAL FORCING III POSTER
spa-aeronomy | 13 december 2024
Liam Smith, Morris Cohen
Many systems, especially communications, are impacted by the state of the ionosphere, which is driven primarily by solar activity. Thus, an accurate m...
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Dealing with Inconsistent Data to Improve Ionospheric Electron Density Predictions with Machine Learning
MACHINE LEARNING FOR SPACE WEATHER II POSTER
nonlinear geophysics | 11 december 2024
Liam Smith, Morris Cohen
The ionosphere affects many systems, such as communications, yet it is difficult to densely measure. Additionally, the dynamics of the system, particu...
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The Novel View of Gamma-Ray Active Thunderclouds from the ALOFT Flight Campaign
ATMOSPHERIC AND SPACE ELECTRICITY QUICK STRIKES ELIGHTNING
atmospheric and space electricity | 11 december 2024
Martino Marisaldi, Nikolai Ostgaard, Timothy J. La...
The ALOFT* 2023 flight campaign is revolutionizing the field of atmospheric electricity, providing observations of gamma-ray emissions from tropical t...
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How Can Ionosondes and VLF Remote Sensing Be Used for the D-Region?
ADVANCES IN RADIO FREQUENCY PROPAGATION MODELING AND APPLICATIONS II ORAL
spa-aeronomy | 11 december 2024
Morris Cohen, Matthew Strong, Jeremiah Lightner, I...
Ionosondes are ground-based pulsed HF radar systems that have been used for decades to infer properties of the ionosphere, but mainly the E and F regi...
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Small Discharges at Thunderstorm Tops Imaged with VHF Interferometry
PHYSICS OF STREAMERS, LEADERS, AND THE LIGHTNING DISCHARGE II ORAL
atmospheric and space electricity | 10 december 2024
Yunjiao Pu, Steven A. Cummer, Olaf Scholten, Ningy...
During the 2023 Airborne Lightning Observatory for FEGS and TGFs (ALOFT) campaign, a short-baseline VHF (0-250 MHz) interferometer was deployed in sou...
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