Published using Google Docs
List of Publications
Updated automatically every 5 minutes

Morris B. Cohen

Publications List

mcohen@gatech.edu

LF.gatech.edu

REFEREED PAPERS

PhD DISSERTATIONS

PATENTS

Refereed Papers

  1. Joseph Ellis, Daniel Emmons, Morris Cohen (2023), Detection and Classification of Sporadic E Using Convolutional Neural Networks, Journal of Geophysical Research Space Physics, https://doi.org/10.1029/2023SW003669

  1. Shweta Dutta, Morris Cohen (2023), Topside Electron Density Modeling Using Neural Network and Empirical Model Predictions, Space Weather, https://doi.org/10.1029/2023SW003501

  1. David Richardson, Morris Cohen (2023), Unifying VLF Transmitter and Sferic Modeling Efforts via Tomography, Journal of Geophysical Research Space Physics, https://doi.org/10.1029/2023JA031989

  1. Ziyi Wang, Gaopeng Lu, Xiao Li, Hongbo Zhang, Yangfeng Fan, Huan Ren, Chenxiao Zhang, Rubin Jiang, Xiushu Qie, Morris Cohen, Zhichao Wang (2023), Low frequency magnetic field observations of natural positive leaders featuring stepwise propagation, Geophysical Research Letters, https://doi.org/10.1029/2023GL105540

  1. Roderick Gray, Morris Cohen, Kevin Whitmore, Lukas Graber, Ning Guo, Raheem Beyah (2023), LF Radio Receiver for Substation Intrusion Deterrent and Measurement Validation, 2023 IEEE Power & Energy Society General Meeting, 16-20 July; Orlando, FL, https://doi.org/10.1109/PESGM52003.2023.10252957

  1. Nikhil Pailoor, Morris Cohen, Vijay Harid, Mark Golkowski, David Richardson (2023), Quantification of lightning-induced electron precipitation events on electron fluxes in the radiation belt, Journal of Geophysical Research Space Physics, http://doi.org/10.1029/2022JA031153

  1. David Richardson, Jackson McCormick, Morris Cohen (2023), A D-Region Ionospheric Imaging Method using Sferic-Based Tomography, Journal of Geophysical Research Space Physics, http://doi.org/10.1029/2023JA031573

  1. Nikhil Pailoor, Morris Cohen (2022),  A large database of lightning-induced electron precipitation events, Journal of Geophysical Research Space Physics, http://doi.org/10.1029/2022JA030683

  1. Shweta Dutta, Morris Cohen (2022), Improving Electron Density Predictions in the Topside of the Ionosphere using Machine Learning on In-Situ Satellite Data, Space Weather, http://doi.org/10.1029/2022SW003134

  1. Nikhil Pailoor, Morris Cohen (2022), Mass Statistical Analysis of Early VLF Events, Journal of Geophysical Research Space Physics, http://doi.org/10.1029/2021JA030204

  1. Paul Bernhardt, Man Hua, Jacob Bortnik, Qianli Ma, Pekka Verronen, Michael McCarthy, Donald Hampton, Mark Golkowski, Morris Cohen, David Richardson, Andrew Howarth, H. Gordon James, Nigel Meredith (2022), Active Precipitation of Radiation Belt Electrons using Rocket Exhaust Driven Amplification (REDA) of Man-Made Whistlers, Journal of Geophysics Space Physics, 2022JA030358, http://doi.org/10.1029/2022JA030358

  1. Michel Parrot, Frantisek Nemec, Morris Cohen, Mark Golkowski (2021), On the use of ELF/VLF emissions triggered by HAARP to simulate PLHR and to study associated MLR events, Earth, Planets and Space, http://doi.org/10.1186/s40623-021-01551-9

  1. William Bristow., Charles Topliff, Morris Cohen (2021), Development of a High-Latitude Convection Model by Application of Machine Learning to SuperDARN Observations, Space Weather, http://doi.org/10.1029/2021SW002920

  1. Joe Hughes, Ryan McGranaghan, Adam Kellerman, Jacob Bortnik, Karthik Venkataramani, Charles Perry, Jackson McCormick, Chigomezyo Ngwira, Morris Cohen (2021), Revealing novel connections between space weather and the power grid: Network analysis of ground-based magnetometer and geomagnetically induced current (GIC) measurements, https://doi.org/10.1029/2021SW002727

  1. Jackson McCormick, Morris Cohen (2021), A new four-parameter D-region Ionospheric Model, Journal of Geophysical Research Space Physics, http://doi.org/10.1029/2021JA029849

  1. David Richardson, Morris Cohen (2021), Seasonal Variation of the D-region Ionosphere: Very Low Frequency (VLF) and Machine Learning Models, Journal of Geophysical Research Space Physics, http://doi.org/10.1029/2021JA029689

  1. Adam Kellerman, Ryan McGranaghan, Jacob Bortnik, B. Carter, Joe Hughes, Robert Barritt, Karthik Venkataramani, Charles Perry, Jackson McCormick, Chigomezyo Ngwira, Morris Cohen, J. Yue (2021) Geomagnetically Induced Currents at Middle Latitudes: 1. Quiet time Variability, Space Weather, http://doi.org/10.1029/2021SW002729

  1. Vijay Harid, C. Liu, Y. Pang, A. Alvina, Mark Golkowski, Poorya Hosseini, Morris Cohen (2021), Automated Large-Scale Extraction of Whistlers using Mask-Scoring Regional Convolutional Neural Network (MSRCNN), Geophysical Research Letters, http://doi.org/10.1029/2021GL093819

  1. Edward Slevin, Morris Cohen, Nate Opalinski, Lee Thompson, Mark Golkowski (2021), Broadband Electrically-Small VLF/LF Transmitter via Time-Varying Antenna Properties, IEEE Transactions on Antennas and Propagation, http://doi.org/10.1109/TAP.2021.3096950

  1. Wang Y., Gaopeng Lu, Steve Cummer, F. Lucena, Morris Cohen, H. Ren, Z. Chang, S. Zhang (2021), Ground observations of negative sprites over a tropical thunderstorm as the embryo if Hurricane Harvey (2017), Geophysical Research Letters, http://doi.org/10.1029/2021GL094032

  1. Evan Worthington, Morris Cohen (2021), The Estimation of D-Region Electron Densities from Trans-ionospheric VLF Signals, Journal of Geophysical Research Space Physics, http://doi.org/10.1029/2021JA029256

  1. Gebreab Zewdie, Cesar Vallardares, Morris Cohen, David Lary, G. Tsidu, D. Romani (2021), Forecasting Ionospheric Total Electron Content (TEC) using the Random Forest and LSTM Deep Neural Network Machine Learning Methods, Space Weather, http://doi.org/10.1029/2020SW002639

  1. Mark Golkowski, Chad Renick, Morris Cohen (2021), Quantification of Ionospheric Perturbations from Lightning using Overlapping Paths of VLF Signal Propagation, Journal of Geophysical Research Space Physics, 126, http://doi.org/10.1029/2020JA028540

  1. Charles Topliff, Morris Cohen, William Bristow (2021), Simultaneously forecasting global geomagnetic activity using recurrent networks, 2020 NeurIPS Machine Learning For Physical Sciences, https://ml4physicalsciences.github.io/2020/files/NeurIPS_ML4PS_2020_84.pdf

  1. Singletary P. J., Morris Cohen (2021), Using a High-Speed Plasma as a Conducting Channel to Enable a Novel Antenna Approach, IEEE Transactions on Plasma Science, http://doi.org/10.1109/TPS.2021.3052849

  1. Paul Bernhardt, W. Bougas, M. Griffin, C. Watson, R. Langley, A. Howarth, H. Gordon James, Carl Siefring, G. Perry, Joe Huba, Robert Moore, Morris Cohen, Mark Golkowski (2021), Strong Amplification of ELF/VLF Signals in Space Using Neutral Gas Injections from a Satellite Rocket Engine, Radio Science, 55, http://doi.org/10.1029/2020RS008207

  1. Baris Gurses, Kevin Whitmore, Morris Cohen (2021), Ultra-sensitive broadband AWESOME electric field receiver for nanovolt low-frequency signals, Reviews of Scientific Instruments, Vol 49, Num 2, http://doi.org/10.1063/5.0031491

  1. Marc Higginson-Rollins, Morris Cohen (2020), Measuring The Electron Density Roughness of the D-Region Ionosphere, Journal of Geophysical Research Space Physics, 125, http://doi.org/10.1029/2020JA028111

  1. Ho-Young Kim, Vijay Harid, Alexander Mroz, Josh Wewerka, D. Todborovsky, Mark Golkowski, R. Rorrer, Morris Cohen, N. Opalinski (2020), Imaging Conducting Objects Through Metal Enclosures using ELF/VLF Magnetic Fields, IEEE Access, http://doi.org/10.1109/ACCESS.2020.2990403

  1. Morris Cohen (2020), Returning lightning data to the cloud, Eos, 101, http://doi.org/10.1029/2020EO142801

  1. Connie Liu, Morris Cohen, Mitchell Walker (2020), Time Resolved Measurements of Plasma Parameters for Nanosecond-pulsed Argon Plasma, IEEE Transactions on Plasma Science, http://doi.org/10.1109/TPS.2020.2973024

  1. Nicholas Gross, Morris Cohen (2020), VLF Remote Sensing of the D-Region Ionosphere Using Neural Networks, Journal of Geophysical Research Space Physics, 124, http://doi.org/10.1029/2019JA027135

  1. Parker Singletary, Connie Liu, Morris Cohen, Mitchell Walker (2019), Optical Analysis of Nanosecond-lifetime Plasma Properties, IEEE Transactions on Plasma Science, http://doi.org/10.1109/TPS.2019.2954908

  1. Timothy Bolton, Morris Cohen (2019), Optimal Design of Electrically-Small Loop Receiving Antennas, Progress in Electromagnetic Research C (PIER C), Volume 98, 155-169, http://doi.org./10.2528/PIERC19090911

  1. Vijay Harid, Mark Golkowski, Stephen Gedney, Morris Cohen, Sarah Patch, R. Rorrer, Chad Renick, J. Bittle, Nate Opalinski, H. Y Kim (2019), Magnetic Field Penetration into a Metal Enclosure using an ELF/VLF Loop Antenna, IEEE Transactions on Electromagnetic Compatibility, http://doi.org/10.1109/TEMC.2019.2952560

  1. Ajeet K. Maurya., Morris Cohen, K. N. Kumar, D. V. Phanikumar, Rajesh Singh, V. K. Valappil, , K. K. Kumar (2019), Observations of very short period atmospheric gravity waves in the lower ionosphere using very low frequency waves, Journal of Geophysical Research Space Physics, 123, http://doi.org/10.1029/2019JA027360

  1. Tohid Shekari, Christian Bayens, Morris Cohen, Lukas Graber, Raheem Beyah (2019) RFDIDS: Radio Frequency-based Distributed Intrusion Detection System for the Power Grid; Network and Distributed Systems Security (NDSS) Symposium; http://doi.org/10.14722/ndss.2019.23462

  1. Mark Golkowski, S. Sarker, Chad Renick, Robert Moore, Morris Cohen, A. Kulak, J. Mlynarczyk, J. Kubisz (2018), Ionospheric D-Region Remote Sensing Using ELF Sferic Group Velocity, Geophysical Research Letters, 123, http://doi.org/10.1029/2018GL08208

  1. Samir NaitAmor, Morris Cohen, Sushil Kumar, Olivier Chanrion, Torsten Neubert (2018), VLF Signal anomalies during cyclone activity in the Atlantic Ocean, Geophysical Research Letters, 123, http://doi.org/10.1029/2018GL078988

  1. Morris Cohen, Ryan Said, Evans Paschal, Jackson McCormick, Nicholas Gross, Lee Thompson, Umran Inan, J. C.  Chang (2018), Broadband Longwave Remote Sensing Instrumentation, Reviews of Scientific Instruments, 89, 094501, http://doi.org/10.1063/1.5041419

  1. Ho-Young Kim, Mark Golkowski, C. Golkowski, Peter Stoltz, Morris Cohen, Mitchell Walker (2018), PIC simulations of post-pulse field reversal and secondary ionization in nanosecond pulsed Argon discharges, Plasma Sources Science and Technology, PSST-102145, https://iopscience.iop.org/article/10.1088/1361-6595/aac0e5/meta

  1. Morris Cohen, Nicholas Gross, Marc Higginson-Rollins, Robert Marshall, Mark Golkowski, W. Liles, D. Rodriguez, J. Rockway (2018), The Lower Ionospheric VLF/LF Response to the 2017 Great American Solar Eclipse Observed Across the Continent, Geophysical Research Letters, 123, http://doi.org/10.1002/2018GL077351

  1. Jackson McCormick, Morris Cohen, Ryan Said, Nicholas Gross (2018), Spatial and temporal ionospheric monitoring using broadband sferic measurements, Journal of Geophysical Research Space Physics, 122, http://doi.org/10.1002/2017JA024291

  1. Nicholas Gross, Morris Cohen, Ryan Said, Mark Golkowski (2018), Polarization Measurements of VLF Transmitters as an Ionospheric Diagnostic, Journal of Geophysical Research Space Physics, 122, http://doi.org/10.1002/2017JA024907

  1. Rajesh Singh, Ajeet K. Maurya, Olivier Chanrion, Torsten Neubert, Steve Cummer, J. Mlynarcyz, Morris Cohen, D. Singh, Sushil Kumar (2017), Assessment of Unusual Gigantic Jets observed during the Monsoon season: First observations from the Indian Subcontinent, Scientific Reports, 7, Article 16436S, http://doi.org/10.1038/s41598-017-16696-5

  1. Marc Higginson-Rollins., Morris Cohen (2017), D-Region Ionospheric Remote Sensing with LF/MF Signals of Opportunity, Geophysical Research Letters, 122, http://doi.org/10.1002/2017GL074236

  1. Samir NaitAmor, Hassen Ghalila, Morris Cohen (2016), TLEs and early VLF events: Simulating the important impact of transmitter‐disturbance‐receiver geometry, Journal of Geophysical Research: Space Physics, 121, http://doi.org/10.1002/2016JA022791

  1. Jing Yang, Gaopeng Lu, N. Liu, H. Cui, Y. Wang, Morris Cohen (2016), Analysis of a mesoscale convective system which produced a single sprite, Advances in Atmospheric Sciences, AAS-2016-0092.R1

  1. Fadi Zoghzoghy, Morris Cohen, Ryan Said, Nikolai Lehtinen, Umran Inan (2015), Ship-borne LF Oceanic Lightning Observations and Modeling, Journal of Geophysical Research: Atmospheres, 120, http://doi.org/10.1002/2015JD023266

  1. Ashanthi Maxworth, Mark Golkowski, Morris Cohen, Robert Moore, R. Jacobs (2015), Multi-station Observations of the Azimuth, Polarization, and Frequency Dependence of ELF/VLF Waves Generated by Electrojet Modulation, Radio Science, 50, http://doi.org/10.1002/2015RS005683

  1. Sneha Gokani, Rajesh Singh, Morris Cohen, Sushil Kumar, K. Venkatesham, Ajeet K. Maurya, R. Selvakumaran, J. Lichtenberger (2015), Very Low Latitude (L=1.08) Whistlers and Correlation with Lightning Activity, Journal of Geophysical Research: Space Physics, 119, http://doi.org/10.1002/2015JA021058

  1. Rajesh Singh, Ajeet K. Maurya, B. Veenadhari, Sneha Gokani, R. Selvakumaran, Morris Cohen, O. Chanrion, Torsten Neubert (2014), First Observations of Transient Luminous Events (TLEs) in Indian Sub-Continent, Current Science, 2014, Vol. 7, Num 107, 1107-1108, https://www.currentscience.ac.in/Volumes/107/07/1107.pdf

  1. Fadi Zoghzoghy, Morris Cohen, Ryan Said, Simon Basilico, Richard Blakeslee, Umran Inan (2014), Lightning Activity Following the Return Stroke, Journal of Geophysical Research: Atmospheres, 119, http://doi.org/10.1002/2014JD021738

  1. Can Liang, Brant Carlson, Nikolai Lehtinen, Morris Cohen, Robert Marshall, Umran Inan (2014), Different Current and Optical Return Stroke Speeds in Lightning, Geophysical Research Letters, 41, http://doi.org/10.1002/2014GL059703

  1. Justin Li, Maria Spasojevic, Vijay Harid, Morris Cohen, Mark Golkowski, Don Carpenter, Umran Inan (2014), Analysis of Magnetospheric ELF/VLF Wave Amplification from the Siple Transmitter Experiment, Journal of Geophysical Research: Space Physics, 119, http://doi.org/10.1002//2013JA019513.

  1. Salut M. M., Morris Cohen, M. A. M. Ali, Kevin Graf, Ben Cotts, Sushil Kumar (2013), On the Relationship Between Lightning Peak Current and Early VLF Perturbations, Journal of Geophysical Research: Space Physics, 118, http://doi.org/10.1002/2013JA019087

  1. Morris Cohen and Mark Golkowski (2013), 100 Days of ELF/VLF Generation via HF Heating with HAARP, Journal of Geophysical Research: Space Physics, 118, http://doi.org/10.1002/jgra.50558

  1. Christos Haldoupis, Morris Cohen, E. Arnone, Ben Cotts, S. Dietrich (2013), The VLF Fingerprint of Elves: Step-like and long recovery Early VLF perturbations caused by EM pulses radiated by powerful +/-CG lightning discharges, Journal of Geophysical Research: Space Physics, 118, http://doi.org/1002/jgra.50489

  1. NaitAmor S., Morris Cohen, Ben Cotts, H. Ghalila, M. Alabdoadaim, K. L. Graf (2013), Characteristics of Long Recovery Early VLF Events Observed by the North African AWESOME Network, Journal of Geophysical Research: Space Physics, 118, http://doi.org/1002/jgra.50448

  1. Ryan Said, Morris Cohen, Umran Inan (2013), Highly Intense Lightning Over the Oceans: Estimated Peak Currents from Global GLD360 Observations, Journal of Geophysical Research: Atmospheres, 118, http://doi.org/1002/jgrd.50508

  1. Kevin Graf, Nikolai Lehtinen, Maria Spasojevic, Morris Cohen, Robert Marshall, Umran Inan (2013), Analysis of experimentally validated transionospheric attenuation estimates of VLF signals, Journal of Geophysical Research: Space Physics, 118, http://doi.org/1002/jgra.50228

  1. Mark Golkowski, Morris Cohen, Robert Moore (2013), Modulation of auroral electrojet currents using dual modulated HF beams with ELF phase offset, a potential D-region ionospheric diagnostic, Journal of Geophysical Research: Space Physics, 118, http://doi.org/10.1002/jgra.50230

  1. Georgie Jin, Maria Spasojevic, Morris Cohen, Umran Inan (2013), Utilizing nonlinear ELF generation in modulated ionospheric heating experiments for communications applications, Radio Science, 48, http://doi.org/10.1002/rds.20014

  1. Fadi Zoghzoghy, Morris Cohen, Ryan Said, Umran Inan (2013), Statistical Patterns in the Location of Natural Lightning, Journal of Geophysical Research Atmos., 118, http://doi.org/10.1002/jgrd.50107

  1. Morris Cohen, Nikolai Lehtinen, Umran Inan (2012), Models of Ionospheric VLF Absorption of Powerful Ground Based Transmitters, Geophysical Research Letters, 39, L24101, http://doi.org/10.1029/2012GL054437

  1. Morris Cohen, Robert Moore, Mark Golkowski, Nikolai Lehtinen (2012), ELF/VLF Wave Generation from the Beating of two HF Ionospheric Heating Sources, Journal of Geophysical Research: Space Physics, 117, A12310, http://doi.org/10.1029/2012JA018140

  1. Rajesh Singh, Morris Cohen, Ryan Said, Ajeet K. Maurya, B. Veenadhari, Umran Inan (2012), Very Low Latitude (L=1.08) Whistlers, Geophysical Research Letters, 39, L23102, http://doi.org/10.1029/2012GL054122

  1. George Jin, Maria Spasojevic, Morris Cohen, Umran Inan (2012), Harmonic minimization waveforms for modulated heating experiments at HAARP, Journal of Geophysical Research: Space Physics, 117, A11315, 2012JA018102

  1. Ajeet K. Maurya, B. Veenadhari, Rajesh Singh, Sushil Kumar, Morris Cohen, R. Selvakumaran, Sneha Gokani, P. Pant, A. Singh, Umran Inan (2012),  Night time D-region electron density measurements from tweek radio atmospherics recorded at low latitudes, Journal of Geophysical Research: Space Physics, 117, A11308, http://doi.org/10.1029/2012JA017876

  1. Robert Moore, Shuji Fujjimaru, Morris Cohen,  Mark Golkowski, Michael McCarrick (2012), On the altitude of the ELF/VLF source region generated during “beat wave” HF heating experiments, Geophysical Research Letters, 39, L18101, http://doi.org/10.1029.2012GL053210

  1. Christos Haldoupis, Morris Cohen, Ben Cotts, Enrico Arnone, Umran Inan (2012), Long-lasting D-region ionospheric modifications caused by intense lightning in association with elve and spite pairs, Geophysical Research Letters, 39, L16801, http://doi.org/10.1029/2012GL052765

  1. Salut M. M., M. Abdullah, Kevin Graf, Morris Cohen, Ben Cotts, Sushil Kumar (2012), Long ionospheric recovery perturbations associated with lightning discharges, Journal of Geophysical Research: Space Research, 117, A08311, http://doi.org/10.1029/2012JA017567

  1. Morris Cohen, Umran Inan (2012), Terrestrial VLF Transmitter Injection into the Magnetosphere, Journal of Geophysical Research: Space Research, 117, A08310, http://doi.org/10.1029/2012JA017992

  1. Morris Cohen, Robert Marshall (2012), ELF/VLF Recordings During the 11-March-2011 Japanese Tohoku Earthquake, Geophysical Research Letters, 39, L11804, http://doi.org/10.1029/2012GL052123

  1. Morris Cohen, Mark Golkowski, Nikolai Lehtinen, Umran Inan, Michael McCarrick (2012), HF beam parameters in ELF/VLF wave generation via modulated heating of the ionosphere, Journal of Geophysical Research: Space Research, 117, A05327, http://doi.org/10.10/2012JA017585

  1. Ajeet K. Maurya, Rajesh Singh, B. Veenadhari, Morris Cohen, R. Selvakumaran, P. Pant, A. Singh, Sushil Kumar, Umran Inan (2012), Morphological Features of Tweeks and Nighttime D-region Ionosphere at Tweek Reflection Height from the Observations in the Low Latitude Indian Sector, Journal of Geophysical Research: Space Research, 117, A05301, http://doi.org/10.1029/2011JA016976

  1. Thomas Gjestland, Nikolai Oestgaard, Andrew Collier, Brant Carlson, Morris Cohen, Nikolai Lehtinen (2011), Confining the Angular Distribution of Terrestrial Gamma-ray Flash Emission, Journal of Geophysical Research: Space Research, 116, A11313, http://doi.org/10.1029/2011JA016716

  1. Rajesh Singh, B. Veenadhari, Ajeet K. Maurya, Morris Cohen, R. Selvakumaran, P. Pant, A. Singh, Sushil Kumar, Umran Inan (2011), D-region ionosphere response to the total solar eclipse of 22 July 2009 deduced from VLF tweek observations in the Indian sector (2011), Journal of Geophysical Research: Space Research, 116, A10301, http://doi.org/10.1029/2011JA016641

  1. Georgie Jin, M. Spasojevic, Morris Cohen, Umran Inan, Nikolai Lehtinen (2011), The relationship between geophysical conditions and ELF amplitude in modulated heating experiments at HAARP: Modeling and experimental results, Journal of Geophysical Research: Space Research, 116, A07310, http://doi.org/10.1029/2011JA016664

  1. Gaopeng Lu, Steve Cummer, W. Lyons, P. Krehbiel, J. Li, W. Rison, R. Thomas, H. Edens, M. Stanley, W. Beasley, Don MacGorman, Oscar van der Velde, Morris Cohen, T. Lang, S.  Rutledge (2011), Lightning development associated with two negative gigantic jets, Geophysical Research Letters, 38, L12801, http://doi.org/10.1029/2011GL047662

  1. Morris Cohen, Umran Inan, Denys Piddyachiy, Nikolai Lehtinen, Mark Golkowski (2011), Magnetospheric injection of ELF/VLF waves with steerable HF heating of the lower ionosphere, Journal of Geophysical Research: Space Research, 116, A06308, http://doi.org/10.1029/2010JA016194

  1. Mark Golkowski, Morris Cohen, Don Carpenter, Umran Inan (2011), On the Occurrence of Ground Observations of ELF/VLF Magnetospheric Amplification Induced by the HAARP Facility, Journal of Geophysical Research: Space Research, 116, A04208, http://doi.org/10.1029/2010JA016261

  1. Mark Golkowski, M. Kubicki, Morris Cohen, A. Kulak, Umran Inan (2011), Estimation of Global Lightning Activity and Observations of Atmospheric Electric Field, Acta Geophysica, 59 (1), 183-204, http://doi.org/10.2478/s11600-010-0035-4

  1. Morris Cohen, Ryan Said, Umran Inan (2010), Mitigation of 50/60 Hz power-line interference in geophysical data, Radio Science, 45(6), http://doi.org/10.1029/2010RS004420

  1. Morris Cohen, Umran Inan , Ryan Said, Michael Briggs, Gerald Fishman, Valerie Connaughton, Steve Cummer (2010), A lightning discharge producing a beam of relativistic electrons into space, Geophysical Research Letters, 37, L18806, http://doi.org/10.1029/2010GL044481

  1. Morris Cohen, Umran Inan, Mark Golkowski, Nikolai Lehtinen (2010), On the generation of ELF/VLF waves for long-distance propagation via steerable HF heating of the lower ionosphere, Journal of Geophysical Research: Space Research, 115, A07322, http://doi.org/10.1029/2009JA013231

  1. Samir NaitAmor, Mohamad AlAbdoadaim, Morris Cohen, Ben Cotts, Serge Soula, Olivier Chanrion, Torsten Neubert, A. Toufik (2010), VLF Observations of Ionospheric Disturbances in Association with TLEs from the Eurosprite-2007 Campaign, Journal of Geophysical Research: Space Research, 116, A00E47, http://doi.org/10.1029/2009JA015026

  1. Mark Golkowski, Umran Inan, Morris Cohen, and Andrew Gibby (2010), Amplitude and Phase of Non-linear Magnetospheric Wave Growth Excited by the HAARP HF Heater, Journal of Geophysical Research: Space Research, 115, A00F04, http://doi.org/10.1029/2009JA014610

  1. Rajesh Singh, B. Veenadhari, Morris Cohen, P. Pant, A. K. Singh, Ajeet K. Maurya, P. Vohat, and Umran Inan (2010), Initial results from AWESOME VLF receivers: set up in low latitude Indian regions under IHY2007/UNBSSI program, Current Science, Vol.98, No. 3, pages 398-405, https://www.jstor.org/stable/24111589

  1. Morris Cohen, Umran Inan, M. A. Golkowski, and Michael McCarrick (2010), ELF/VLF Wave Generation via Ionospheric HF Heating: Experimental Comparison of Amplitude Modulation, Beam Painting, and Geometric Modulation, Journal of Geophysical Research: Space Research, 115, A02302, http://doi.org/10.1029/2009JA014410

  1. Morris Cohen, Umran Inan, Ryan Said, Thomas Gjestland (2010), Geolocation of terrestrial gamma-ray flash source lightning, Geophysical Research Letters, 37, L02801, http://doi.org/10.1029/2009GL041753 – Spotlighted by Nature, Highlighted by AGU EOS

  1. Morris Cohen, Umran Inan, and Evans Paschal (2010), Sensitive Broadband ELF/VLF Radio Reception with the AWESOME Instrument, IEEE Transactions on Geoscience and Remote Sensing, 48, 1, 3-16, https://doi.org/10.1109/TGRS.2009.2028334

  1. Mark Golkowski, Umran Inan, Morris Cohen (2009), Cross Modulation of Whistler Mode and HF Waves above the HAARP Ionospheric Heater, Geophysical Research Letters, 36,  L15103, http://doi.org/10.1029/2009GL039669

  1. Morris Cohen, Umran Inan, Mark Golkowski (2009), Reply to Comments on “Geometric modulation: A more effective method of steerable ELF/VLF wave generation with continuous HF heating of the lower ionosphere”, by Robert Moore and M. T. Rietveld, Geophysical Research Letters, 36, L04102, http://doi.org/10.1029/2008GL036519

  1. Mark Golkowski, Umran Inan, Andrew Gibby, and Morris Cohen (2008), Magnetospheric amplification and emission triggering by ELF/VLF waves injected by the 3.6 MW HAARP ionospheric heater, Journal of Geophysical Research: Space Research, 113, A10201, http://doi.org/10.1029/2008JA013157

  1. Morris Cohen, Umran Inan, Mark Golkowski (2008), Geometric modulation: A more effective method of steerable ELF/VLF wave generation with continuous HF heating of the lower ionosphere, Geophysical Research Letters, 35, L12101, http://doi.org/10.1029/2008GL034061

  1. Deborah Scherrer, Morris Cohen, Todd Hoekesma, Umran Inan, Ray Mitchell, Phil Scherrer (2008), Distributing space weather monitoring instruments and educational materials for IHY 2007: The AWESOME and SID project, Advances in Space Research, 42, 1777-1785, https://doi.org/10.1016/j.asr.2007.12.013

  1. Morris Cohen, Mark Golkowski, Umran Inan (2008), Orientation of the HAARP ELF ionospheric dipole and the auroral electrojet, Geophysical Research Letters, 35, L02806, http://doi.org/10.1029/2007GL032424

  1. Morris Cohen, Umran Inan, Gerald Fishman (2006), Terrestrial gamma ray flashes observed aboard the Compton Gamma Ray Observatory/Burst and Transient Source Experiment and ELF/VLF radio atmospherics, Journal of Geophysical Research: Atmospheres, 111, D24109, http://doi.org/10.1029/2005JD006987

  1. Umran Inan, Morris Cohen, Ryan Said, David M. Smith, and Liliana Lopez (2006), Terrestrial gamma ray flashes and lightning discharges, Geophysical Research Letters, 33, L18802, http://doi.org/10.1029/2006GL027085

PhD Dissertations

  1. Morris Cohen (2009), ELF/VLF Phased Array Generation via Frequency-matched Steering of a Continuous HF Ionospheric Heating Beam, PhD Dissertation, Stanford University

  1. Nicholas Gross (2018), An Ionospheric Remote Sensing Method Using an Array of Narrowband VLF Transmitters and Receivers, PhD Dissertation, Georgia Institute of Technology

  1. Jackson McCormick (2019), D Region Tomography: A Technique for Ionospheric Imaging using Lightning-generated Sferics and Inverse Modeling, PhD Dissertation, Georgia Institute of Technology

  1. Connie Liu (2019), Investigating physics of nanosecond-pulsed argon plasma discharges for a VLF plasma antenna, PhD Dissertation, Georgia Institute of Technology  (co-advised with Mitchell Walker)

  1. Parker Singletary (2020), Using a High-speed Plasma as a Conducting Channel to Enable a Novel Antenna Approach, PhD Dissertation, Georgia Institute of Technology

  1. Marc Higginson-Rollins (2020), Characterizing D-Region Roughness Using LF/MF Signals of Opportunity, PhD Dissertation, Georgia Institute of Technology

  1. Tohid Shekari (2021), Methods to Attack and Secure the Power Grids and Energy Market, PhD DIssertation, Georgia Institute of Technology (co-advised with Raheem Beyah)

  1. Edward Slevin (2022), Broadband Electrically-Small VLF/LF Transmitter Realized by Rapidly Time-Varying Antenna Properties, PhD DIssertation, Georgia Institute of Technology

  1. Nikhil Pailoor (2022), Evaluating the role of lightning-induced electron precipitation towards radiation belt electron loss, PhD DIssertation, Georgia Institute of Technology

  1. Charles Topliff (2023), Towards Comprehensively Modeling the Earth-Sun Magnetic Interaction Using Machine Learning

  1. David Richardson (2023), Unifying VLF Transmitter and Lightning-driven D-Region Ionosphere Remote Sensing

Issued Patents

  1. Morris Cohen, Electrically short antennas with enhanced radiation resistance, US Patent WO2016014790A1, issued 26-Mar-2020, priority to 2014-Jul-23.