Morris B. Cohen

Publications List

mcohen@gatech.edu

LF.gatech.edu

Refereed Journal Papers

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

  1. Nait Amor S., H. Ghalila, M. B. Cohen (2016), Ionospheric Disturbances from Gigantic Jets and Elves, Journal of Geophysical Research: Space Physics, 121, doi:10.1002/2016JA022791

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

  1. Zoghzoghy F. G., M. B. Cohen, R. K. Said, N. G. Lehtinen, U. S. Inan (2015), Ship-borne LF Oceanic Lightning Observations and Modeling, Journal of Geophysical Research: Atmospheres, 120, doi:10.1002/2015JD023266

  1. Maxworth A. S., M. Golkowski, M. B. Cohen, R. C. 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, doi:10.1002/2015RS005683

  1. S. A. Gokani, R. Singh, M. B. Cohen, S. Kumar, K. Venkatesham, A. 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, doi:10.1002/2015JA021058

  1. Singh R., A. K. Maurya, B. Veenadhari, S. A. Gokani, R. Selvakumaran, M. B. Cohen, O. Chanrion, T. Neubert (2014), First Observations of Transient Luminous Events (TLEs) in Indian Sub-Continent, Current Science, 2014, Vol. 7, Num 107, 1107-1108

  1. Zoghzoghy F. G., M. B. Cohen, R. K. Said, S. Basilico, R. J. Blakeslee, U. S. Inan (2014), Lightning Activity Following the Return Stroke, Journal of Geophysical Research: Atmospheres, 119, doi:10.1002/2014JD021738

  1. Liang C., B. E. Carlson, N. G. Lehtinen, M. B. Cohen, R. A. Marshall, U. S. Inan (2014), Different Current and Optical Return Stroke Speeds in Lightning, Geophysical Research Letters, 41, doi:10.1002/2014GL059703

  1. Li J. D., M. Spasojevic, V. Harid, M. B. Cohen, M. Golkowski, D. L. Carpenter, U. S. Inan (2014), Analysis of Magnetospheric ELF/VLF Wave Amplification from the Siple Transmitter Experiment, Journal of Geophysical Research: Space Physics, 119, doi:10.1002//2013JA019513.

  1. Salut M. M., M. B. Cohen, M. A. M. Ali, K. G. Graf, B. R. T. Cotts, S. Kumar (2013), On the Relationship Between Lightning Peak Current and Early VLF Perturbations, Journal of Geophysical Research: Space Physics, 118, doi:10.1002/2013JA019087

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

  1. Haldoupis C., M. B. Cohen, E. Arnone, B. R. T. 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, doi:1002/jgra.50489

  1. NaitAmor S., M. B. Cohen, B. R. T. 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, doi:1002/jgra.50448

  1. Said R. K., M. B. Cohen, U. S. Inan (2013), Highly Intense Lightning Over the Oceans: Estimated Peak Currents from Global GLD360 Observations, Journal of Geophysical Research: Atmospheres, 118, doi:1002/jgrd.50508

  1. Graf K. L., N. G. Lehtinen, M. Spasojevic, M. B. Cohen, R. A. Marshall, U. S. Inan (2013), Analysis of experimentally validated transionospheric attenuation estimates of VLF signals, Journal of Geophysical Research: Space Physics, 118, doi:1002/jgra.50228

  1. Golkowski M., M. B. Cohen, R. C. 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, doi:10.1002/jgra.50230

  1. Jin G., M. Spasojevic, M. B. Cohen, U. S. Inan (2013), Utilizing nonlinear ELF generation in modulated ionospheric heating experiments for communications applications, Radio Science, 48, doi:10.1002/rds.20014

  1. Zoghzoghy F. G., M. B. Cohen, R. K. Said, U. S. Inan (2013), Statistical Patterns in the Location of Natural Lightning, Journal of Geophysical Research Atmos., 118, doi:10.1002/jgrd.50107

  1. Cohen M. B., N. G. Lehtinen, U. S. Inan (2012), Models of Ionospheric VLF Absorption of Powerful Ground Based Transmitters, Geophysical Research Letters, 39, L24101, doi:10.1029/2012GL054437

  1. Cohen M. B., R. C. Moore, M. Golkowski, N. G. Lehtinen (2012), ELF/VLF Wave Generation from the Beating of two HF Ionospheric Heating Sources, Journal of Geophysical Research: Space Physics, 117, A12310, doi:10.1029/2012JA018140

  1. Singh R., M. B. Cohen, R. K. Said, A. K. Maurya, B. Veenadhari, U. S. Inan (2012), Very Low Latitude (L=1.08) Whistlers, Geophysical Research Letters, 39, L23102, doi:10.1029/2012GL054122

  1. Jin, G., M. Spasojevic, M. B. Cohen, U. S. Inan (2012), Harmonic minimization waveforms for modulated heating experiments at HAARP, Journal of Geophysical Research: Space Physics, 117, A11315, 2012JA018102

  1. Maurya A., B. Veenadhari, R. Singh, S. Kumar, M. B. Cohen, R. Selvakumaran, S. Gokani, P. Pant, A. Singh, U.S. 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, doi:10.1029/2012JA017876

  1. Moore R. C., S. Fujjimaru, M. Cohen,  M. Golkowski, M. J. McCarrick (2012), On the altitude of the ELF/VLF source region generated during “beat wave” HF heating experiments, Geophysical Research Letters, 39, L18101, doi:10.1029.2012GL053210.

  1. Haldoupis C., M. B. Cohen, B. R. T. Cotts, E. Arnone, U. S. Inan (2012), Long-lasting D-region ionospheric modifications caused by intense lightning in association with elve and spite pairs, Geophysical Research Letters, 39, L16801, doi:10.1029/2012GL052765

  1. Salut M. M., M. Abdullah, K. L. Graf, M. B. Cohen, B. R. T. Cotts, S. Kumar (2012), Long ionospheric recovery perturbations associated with lightning discharges, Journal of Geophysical Research: Space Research, 117, A08311, doi:10.1029/2012JA017567

  1. Cohen M. B., U. S. Inan (2012), Terrestrial VLF Transmitter Injection into the Magnetosphere, Journal of Geophysical Research: Space Research, 117, A08310, doi:10.1029/2012JA017992

  1. Cohen M. B., R. A. Marshall (2012), ELF/VLF Recordings During the 11-March-2011 Japanese Tohoku Earthquake, Geophysical Research Letters, 39, L11804, doi:10.1029/2012GL052123

  1. Cohen M. B., M. Golkowski, N. G. Lehtinen, U. S. Inan, M. J.  McCarrick (2012), HF beam parameters in ELF/VLF wave generation via modulated heating of the ionosphere, Journal of Geophysical Research: Space Research, 117, A05327, doi:10.10/2012JA017585

  1. Maurya A., R. Singh, B. Veenadhari, M. B. Cohen, R. Selvakumaran, P. Pant, A. Singh, S.Kumar, U.S. 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, doi:10.1029/2011JA016976

  1. Gjestland T., N.Oestgaard, A. Collier, B. Carlson, M. B. Cohen, N. G.Lehtinen (2011), Confining the Angular Distribution of Terrestrial Gamma-ray Flash Emission, Journal of Geophysical Research: Space Research, 116, A11313, doi:10.1029/2011JA016716

  1. Singh R., B. Veenadhari, A. Maurya, M. B. Cohen, R. Selvakumaran, P. Pant, A. Singh, S.Kumar, U.S. 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, doi:10.1029/2011JA016641

  1. Jin G., M. Spasojevic, M. B. Cohen, U. S. Inan, N. G. 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, doi:10.1029/2011JA016664

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

  1. Cohen M. B., U. S. Inan, D. Piddyachiy, N. G. Lehtinen, M. Golkowski (2011), Magnetospheric injection of ELF/VLF waves with steerable HF heating of the lower ionosphere, Journal of Geophysical Research: Space Research, 116, A06308, doi:10.1029/2010JA016194

  1. Golkowski M., M. B. Cohen, D. L. Carpenter, U. S. 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, doi:10.1029/2010JA016261

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

  1. Cohen M. B., R. K. Said, U. S. Inan (2010), Mitigation of 50/60 Hz power-line interference in geophysical data, Radio Science, 45(6), doi:10.1029/2010RS004420

  1. Cohen M. B., U. S. Inan , R. K. Said, M. Briggs, G. Fishman, V. Connaughton, S. A. Cummer (2010), A lightning discharge producing a beam of relativistic electrons into space, Geophysical Research Letters, 37, L18806, doi:10.1029/2010GL044481

  1. Cohen M. B., U. S. Inan, M. Golkowski, N. G. 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, doi:10.1029/2009JA013231.

  1. Nait Amor S., M. AlAbdoadaim, M. B. Cohen, B. R. Cotts, S. Soula, O. Chanrion, T. 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, doi:10.1029/2009JA015026

  1. Golkowski M., U. S. Inan, M. B. Cohen, and A. R. 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, doi:10.1029/2009JA014610

  1. Singh R., B. Veenadhari, M. B. Cohen, P. Pant, A. K. Singh, A. K. Maurya, P. Vohat, and U. S. 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

  1. Cohen M. B., U. S. Inan, M. A. Golkowski, and M. J. 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, doi:10.1029/2009JA014410

  1. Cohen M. B., U. S. Inan, R. K. Said, T. Gjestland (2010), Geolocation of terrestrial gamma-ray flash source lightning, Geophysical Research Letters, 37, L02801, doi:10.1029/2009GL041753 – Spotlighted by Nature and Highlighted by AGU EOS

  1. Cohen M. B., U. S. Inan, and E. W. Paschal (2010), Sensitive Broadband ELF/VLF Radio Reception with the AWESOME Instrument, IEEE Transactions on Geoscience and Remote Sensing, 48, 1, 3-16, doi:10.1109/TGRS.2009.2028331

  1. Golkowski M., U. S. Inan, M. B. Cohen (2009), Cross Modulation of Whistler Mode and HF Waves above the HAARP Ionospheric Heater, Geophysical Research Letters, 36,  L15103, doi:10.1029/2009GL039669

  1. Cohen M. B., U. S. Inan, M. 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 R. C. Moore and M. T. Rietveld, Geophysical Research Letters, 36, L04102, doi:10.1029/2008GL036519

  1. Golkowski M., U. S. Inan, A. R. Gibby, and M. B. 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, doi:10.1029/2008JA013157

  1. Cohen M. B., U. S. Inan, M. 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, doi:10.1029/2008GL034061

  1. Scherrer D., M. B. Cohen, T. Hoekesma, U. S. Inan, R. Mitchell, P. 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

  1. Cohen M. B., M. Golkowski, U. S. Inan (2008), Orientation of the HAARP ELF ionospheric dipole and the auroral electrojet, Geophysical Research Letters, 35, L02806, doi:10.1029/2007GL032424

  1. Cohen M. B., U. S. Inan, G. 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, doi:10.1029/2005JD006987

  1. Inan U. S., M. B. Cohen, R. K. Said, D. M. Smith, and L. I. Lopez (2006), Terrestrial gamma ray flashes and lightning discharges, Geophysical Research Letters, 33, L18802, doi:10.1029/2006GL027085

PhD Dissertations

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