An Ionospheric Remote Sensing Method Using an Array of Narrowband VLF Transmitters and Receivers

[1]  M. Clilverd,et al.  Solar cycle changes in daytime VLF subionospheric attenuation , 2000 .

[2]  K. Koh,et al.  Lower ionosphere effects on narrowband VLF transmission , 2018 .

[3]  K. Cummins,et al.  Seasonal, Monthly, and Weekly Distributions of NLDN and GLD360 Cloud-to-Ground Lightning , 2016 .

[4]  D. M. Levine,et al.  Review of measurements of the RF spectrum of radiation from lightning , 1986 .

[5]  D. Bilitza,et al.  International Reference Ionosphere 2007: Improvements and new parameters , 2008 .

[6]  J. Seddon Differential absorption in the D and lowers‐E regions , 1958 .

[7]  Neil R. Thomson,et al.  Experimental daytime VLF ionospheric parameters , 1993 .

[8]  S. Cummer,et al.  An FDTD model for low and high altitude lightning-generated EM fields , 2006, IEEE Transactions on Antennas and Propagation.

[9]  U. Inan,et al.  Radiation of ELF/VLF waves by harmonically varying currents into a stratified ionosphere with application to radiation by a modulated electrojet , 2008 .

[10]  Jimmy Ba,et al.  Adam: A Method for Stochastic Optimization , 2014, ICLR.

[11]  U. Inan,et al.  VLF observation of long ionospheric recovery events , 2006 .

[12]  M. Gołkowski,et al.  Principles of Plasma Physics for Engineers and Scientists , 2011 .

[13]  J. Galejs VLF propagation across discontinuous daytime-to nighttime transitions in anisotropic terrestrial waveguide , 1971 .

[14]  N. C. Gross,et al.  Polarization of Narrowband VLF Transmitter Signals as an Ionospheric Diagnostic , 2018 .

[15]  C. Rodger,et al.  Temporal evolution of very strong Trimpis observed at Darwin, Australia , 1997 .

[16]  J. Ralph Johler,et al.  On the theory of reflection of low- and very-low-radiofrequency waves from the ionosphere , 1960 .

[17]  S. Hyakin,et al.  Neural Networks: A Comprehensive Foundation , 1994 .

[18]  Yoshua Bengio,et al.  Algorithms for Hyper-Parameter Optimization , 2011, NIPS.

[19]  H. Booker Oblique Propagation of Electromagnetic Waves in a Slowly-Varying Non-Isotropic Medium , 1936 .

[20]  A. Chulliat,et al.  The US/UK World Magnetic Model for 2015-2020 , 2015 .

[21]  Vladimir A. Rakov,et al.  Fundamentals of Lightning , 2016 .

[22]  Umran S. Inan,et al.  Ionospheric D region remote sensing using VLF radio atmospherics , 1998 .

[23]  M. Cohen,et al.  VLF observations of ionospheric disturbances in association with TLEs from the EuroSprite-2007 campaign , 2010 .

[24]  N. Thomson Whistler‐mode signals: Group delay by crosscorrelation , 1975 .

[25]  Richard A. Pappert,et al.  A Numerical Investigation of Classical Approximations Used in VLF Propagation , 1967 .

[26]  T. Bell,et al.  Sustained heating of the ionosphere above thunderstorms as evidenced in “early/fast” VLF events , 1996 .

[27]  H. J. Hagger,et al.  Electromagnetic Waves in Stratified Media , 1996 .

[28]  C. Rodger,et al.  Low‐latitude ionospheric D region dependence on solar zenith angle , 2014 .

[29]  S. Dietrich,et al.  The VLF fingerprint of elves: Step-like and long-recovery early VLF perturbations caused by powerful ±CG lightning EM pulses , 2014, 2014 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM).

[30]  Rajesh Singh,et al.  Solar flare induced D-region ionospheric perturbations evaluated from VLF measurements , 2014 .

[31]  J. Wait,et al.  Reflection of VLF Radio Waves from an Inhomogeneous Ionosphere. Part I. Exponentially Varying Isotropic Model , 1963 .

[32]  R. C. Moore,et al.  Observation of local and conjugate ionospheric perturbations from individual oceanic lightning flashes , 2014 .

[33]  M. Nicolet,et al.  The formation of the D region of the ionosphere , 1960 .

[34]  S. Cummer,et al.  Midlatitude daytime D region ionosphere variations measured from radio atmospherics , 2010 .

[35]  S. Cummer,et al.  Midlatitude nighttime D region ionosphere variability on hourly to monthly time scales , 2010 .

[36]  James R. Wait,et al.  Characteristics of the earth-ionosphere waveguide for VLF radio waves , 1964 .

[37]  J. Wait,et al.  Influence of finite ground conductivity on the propagation of VLF radio waves , 1965 .

[38]  K. Nagashima,et al.  The magneto-ionic theory and its applications to the ionosphere: by J. A. Ratcliffe. 206 pages, diagrams, 834 × 534 in. New York, Cambridge University Press, 1959. Price, $7.50 , 1959 .

[39]  R.M. Gray,et al.  Communication systems: An introduction to signals and noise in electrical communication , 1976, Proceedings of the IEEE.

[40]  K. Budden,et al.  The numerical solution of differential equations governing the reflexion of long radio waves from the ionosphere. III , 1959, Proceedings of the Royal Society of London. Series A, Mathematical and physical sciences.

[41]  R. Schunk,et al.  The USU-GAIM-FP data assimilation model for ionospheric specifications and forecasts , 2014, 2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).

[42]  Craig J. Rodger,et al.  Sunrise effects on VLF signals propagating over a long north‐south path , 1999 .

[43]  K. Budden The numerical solution of differential equations governing reflexion of long radio waves from the ionosphere , 1955, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[44]  T. Bell,et al.  Blue jets produced by quasi‐electrostatic pre‐discharge thundercloud fields , 1996 .

[45]  J. A. Ferguson A Review of the Ionospheric Model for the Long Wave Prediction Capability , 1992 .

[46]  D. Crombie Periodic fading of VLF signals received over long paths during sunrise and sunset , 1964 .

[47]  Ranjit M. Passi,et al.  A parametric estimation of systematic errors in networks of magnetic direction finders , 1989 .

[48]  A. Cullen,et al.  Terrestrial propagation of long electromagnetic waves , 2013 .

[49]  David G Morfitt,et al.  'MODESRCH', An Improved Computer Program for Obtaining ELF/VLF/LF Mode Constants in an Earth-Ionosphere Waveguide , 1976 .

[50]  A. B. Kaiser Identification of a New Type of Mode Conversion Interference in VLF Propagation , 1968 .

[51]  James R. Wait Mode conversion and refraction effects in the Earth-ionosphere waveguide for VLF radio waves , 1968 .

[52]  Marc ThÈvenot,et al.  A FDTD scheme for the computation of VLF-LF propagation in the anisotropic earth-ionosphere waveguide , 1999, Ann. des Télécommunications.

[53]  Umran S. Inan,et al.  On the association of early/fast very low frequency perturbations with sprites and rare examples of VLF backscatter , 2006 .

[54]  A. Mannucci,et al.  A brief review of “solar flare effects” on the ionosphere , 2009 .

[55]  L. R. Hitney,et al.  Empirical modeling of nighttime easterly and westerly VLF propagation in the Earth-ionosphere waveguide , 1987 .

[56]  Umran S. Inan,et al.  Multistation observations of ELF/VLF whistler mode chorus , 2008 .

[57]  U. Inan,et al.  On the occurrence and spatial extent of electron precipitation induced by oblique nonducted whistler waves , 2004 .

[58]  U. Inan,et al.  Early VLF perturbations caused by lightning EMP‐driven dissociative attachment , 2008 .

[59]  N. Thomson Daytime tropical D region parameters from short path VLF phase and amplitude , 2010 .

[60]  J. A. Ferguson,et al.  Experimental Observation of Magnetic Field Effects on VLF Propagation at Night , 1970 .

[61]  R. Francey Electron production in the ionospheric D region by cosmic X rays , 1970 .

[62]  A. Aikin,et al.  Some results of rocket experiments in the quiet D region , 1964 .

[63]  Umran S. Inan,et al.  Highly intense lightning over the oceans: Estimated peak currents from global GLD360 observations , 2013 .

[64]  Jeffrey Chang,et al.  Broadband longwave radio remote sensing instrumentation. , 2018, The Review of scientific instruments.

[65]  Paul Wessel,et al.  Interpolation using a generalized Green's function for a spherical surface spline in tension , 2008 .

[66]  Umran S. Inan,et al.  Sensitive Broadband ELF/VLF Radio Reception With the AWESOME Instrument , 2010, IEEE Transactions on Geoscience and Remote Sensing.

[67]  Umran S. Inan,et al.  Long‐range lightning geolocation using a VLF radio atmospheric waveform bank , 2010 .

[68]  K. G. Jr. Budden,et al.  The Propagation of Radio Waves: The Theory of Radio Waves of Low Power in the Ionosphere and Magnetosphere , 1988 .

[69]  Craig J. Rodger,et al.  Daytime D region parameters from long‐path VLF phase and amplitude , 2011 .

[70]  S. Pasupathy,et al.  Minimum shift keying: A spectrally efficient modulation , 1979, IEEE Communications Magazine.

[71]  T. F. Bell,et al.  VLF Antarctic antenna: Impedance and efficiency , 1974 .

[72]  E. R. Swanson ELF-VLF Applications in Navigation and Communications , 1974 .

[73]  Brian R. Dennis,et al.  Pulsations in the Earth's Lower Ionosphere Synchronized With Solar Flare Emission , 2017, 1710.01725.

[74]  W. Lyons,et al.  Are VLF rapid onset, rapid decay perturbations produced by scattering off sprite plasma? , 1996 .

[75]  M. Parrot,et al.  Power line harmonic radiation observed by the DEMETER spacecraft at 50/60 Hz and low harmonics , 2015 .

[76]  S. Gaffet,et al.  Array analysis of electromagnetic radiation from radio transmitters for submarine communication , 2014 .

[77]  S. Cummer,et al.  Daytime ionospheric D region sharpness derived from VLF radio atmospherics , 2011 .

[78]  U. Inan,et al.  Early/fast VLF events produced by the quiescent heating of the lower ionosphere by thunderstorms , 2017 .

[79]  R. Said,et al.  Spatial and Temporal Ionospheric Monitoring Using Broadband Sferic Measurements , 2018 .

[80]  Neil R. Thomson,et al.  Whistler mode signals: Spectrographic group delays , 1981 .

[81]  J. Wait On the theory of VLF propagation for a step model of the nonuniform earth–ionosphere wave guide , 1968 .

[82]  Umran S. Inan,et al.  Ionospheric D region electron density profiles derived from the measured interference pattern of VLF waveguide modes , 2003 .

[83]  Kurt Hornik,et al.  Multilayer feedforward networks are universal approximators , 1989, Neural Networks.

[84]  J. Trøim,et al.  Rocket measurements of D‐region electron number densities at sunrise , 1967 .

[85]  M. Clilverd,et al.  Nighttime ionospheric D region parameters from VLF phase and amplitude , 2007 .

[86]  Stephen D. Gedney,et al.  Multistation observations of the azimuth, polarization, and frequency dependence of ELF/VLF waves generated by electrojet modulation , 2015 .

[87]  M. Yamashita,et al.  Some considerations of the polarization error in direction finding of atmospherics. I - Effect of the earth's magnetic field. II - Effect of the inclined electric dipole , 1974 .

[88]  U. Inan,et al.  Lightning-induced electron precipitation , 1984, Nature.

[89]  F. P. Snyder,et al.  Some Results of a Mode‐Conversion Program for VLF , 1972 .

[90]  R. Pappert,et al.  Theoretical and experimental sunrise mode conversion results at VLF , 1975 .

[91]  M. Cohen,et al.  Characteristics of long recovery early VLF events observed by the North African AWESOME Network , 2013 .

[92]  W. David Rust,et al.  Site Errors and Detection Efficiency in a Magnetic Direction-Finder Network for Locating Lightning Strikes to Ground , 1986 .

[93]  James Thomas. Gobbel An aid for the optimum design of antenna systems for very low frequencies. , 1967 .

[94]  C. H. Shellman A new version of MODESRCH using interpolated values of the magnetoionic reflection coefficients , 1986 .

[95]  K.L. Cummins,et al.  An Overview of Lightning Locating Systems: History, Techniques, and Data Uses, With an In-Depth Look at the U.S. NLDN , 2009, IEEE Transactions on Electromagnetic Compatibility.

[96]  J. A. Ferguson,et al.  Approximate VLF/LF Waveguide Mode Conversion Model. Computer Applications: FASTMC and BUMP , 1980 .

[97]  F. Horner,et al.  The accuracy of the location of sources of atmospherics by radio direction-finding , 1954 .

[98]  A. Mitra,et al.  An experimental and theoretical study of the D-region—II. A semi-empirical model for mid-latitude D-region , 1974 .

[99]  Mark Golkowski,et al.  Unique concurrent observations of whistler mode hiss, chorus, and triggered emissions , 2017 .

[100]  W. L. Taylor VLF attenuation for east‐west and west‐east daytime propagation using atmospherics , 1960 .

[101]  E. Appleton A note on the “sluggishness” of the ionosphere , 1953 .

[102]  M. M. Salut,et al.  On the relationship between lightning peak current and Early VLF perturbations , 2013 .

[103]  Richard A. Pappert,et al.  VLF/LF mode conversion model calculations for air to air transmissions in the earth‐ionosphere waveguide , 1986 .

[104]  M.W. Chevalier,et al.  A Technique for Efficiently Modeling Long-Path Propagation for Use in Both FDFD and FDTD , 2006, IEEE Antennas and Wireless Propagation Letters.

[105]  Umran S. Inan,et al.  Mitigation of 50–60 Hz power line interference in geophysical data , 2010 .

[106]  Neil R. Thomson,et al.  VLF phase and amplitude: daytime ionospheric parameters , 2000 .

[107]  K. G. Budden The Wave-guide mode theory of wave propagation , 1963 .

[108]  D. Walker Phase steps and amplitude fading of VLF signals at dawn and dusk , 1965 .

[109]  Martin A. Uman,et al.  A Gated, Wideband Magnetic Direction Finder for Lightning Return Strokes , 1976 .

[110]  J. A. Ferguson,et al.  Computer Programs for Assessment of Long-Wavelength Radio Communications, Version 2.0: User's Guide and Source Files , 1998 .

[111]  A. Mitra,et al.  Ionospheric effects of solar flares , 1974 .

[112]  Abram R. Jacobson,et al.  A method for determining intracloud lightning and ionospheric heights from VLF/LF electric field records , 2004 .

[113]  K. Cummins,et al.  Combined Satellite- and Surface-Based Estimation of the Intracloud Cloud-to-Ground Lightning Ratio over the Continental United States , 2001 .

[114]  Ryan Khalil Said Accurate and efficient long-range lightning geo-location using a VLF radio atmospheric waveform bank , 2009 .

[115]  J. Mathews,et al.  The measurement of diurnal variations of electron concentration in the 60–100 km ionosphere at Arecibo , 1982 .

[116]  Raj Mittra,et al.  Surface impedance modeling using the finite-difference time-domain method , 1997, IEEE Trans. Geosci. Remote. Sens..

[117]  Craig J. Rodger,et al.  ELF and VLF radio waves , 2000 .

[118]  K. Budden The influence of the earth’s magnetic field on radio propagation by wave-guide modes , 1962, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[119]  Robert H. Holzworth,et al.  Growing Detection Efficiency of the World Wide Lightning Location Network , 2009 .

[120]  C. Rodger,et al.  Tropical daytime lower D-region dependence on sunspot number , 2012 .

[121]  Neil R. Thomson,et al.  Solar flare induced ionospheric D-region enhancements from VLF amplitude observations , 2001 .

[122]  Alexey Minin,et al.  Comparison of the Complex Valued and Real Valued Neural Networks Trained with Gradient Descent and Random Search Algorithms , 2011, ESANN.

[123]  Umberto Mengali,et al.  Joint frequency and timing recovery for MSK-type modulation , 1999, IEEE Trans. Commun..

[124]  I. Dammasch,et al.  Response of the low ionosphere to X‐ray and Lyman‐α solar flare emissions , 2013 .

[125]  Ashutosh Kumar Singh,et al.  The Elements of Statistical Learning: Data Mining, Inference, and Prediction , 2010 .

[126]  C. Rodger,et al.  Midlatitude ionospheric D region: Height, sharpness, and solar zenith angle , 2017 .

[127]  Steven A. Cummer,et al.  Lightning and ionospheric remote sensing using VLF/ELF radio atmospherics , 1997 .

[128]  M. Ishii,et al.  On The Site Error of Wide Band Magnetic Direction Finder , 1995 .

[129]  J. Callen Fundamentals of Plasma Physics , 2004 .

[130]  H. Christian Global Frequency and Distribution of Lightning as Observed From Space , 2001 .

[131]  D. Crombie Reflection from a sharply bounded ionosphere for VLF propagation Perpendicular to the magnetic meridian , 1961 .

[132]  T. Bell,et al.  The Siple VLF transmitter as a multi-frequency probe of the Earth-ionosphere waveguide , 1988 .

[133]  Peter Harrington,et al.  Machine Learning in Action , 2012 .

[134]  R. C. Moore,et al.  Early/fast VLF events produced by electron density changes associated with sprite halos , 2003 .

[135]  K. Torkar,et al.  FIRI‐2018, an Updated Empirical Model of the Lower Ionosphere , 2018, Journal of Geophysical Research: Space Physics.

[136]  Á. Mika,et al.  VLF Studies During TLE Occurrences in Europe: A Summary of New Findings , 2008 .

[137]  U. Inan,et al.  Two‐dimensional frequency domain modeling of lightning EMP‐induced perturbations to VLF transmitter signals , 2010 .

[138]  Umran S. Inan,et al.  Localization of individual lightning discharges via directional and temporal triangulation of sferic measurements at two distant sites , 2004 .

[139]  R. Hsu,et al.  Early VLF perturbations observed in association with elves , 2006 .

[140]  D. A. Chrissan,et al.  Seasonal variations of globally measured ELF/VLF radio noise , 1996 .

[141]  N. Thomson,et al.  Solar flare induced ionospheric D-region enhancements from VLF phase and amplitude observations , 2004 .

[142]  C. Price,et al.  Anomalously strong vertical magnetic fields from distant ELF/VLF sources , 2015 .

[143]  C. Sechrist Comparisons of techniques for measurement of D‐region electron densities , 1974 .

[144]  V. Srećković,et al.  Altitude distribution of electron concentration in ionospheric D-region in presence of time-varying solar radiation flux , 2012, 1204.4306.

[145]  Francis F. Chen,et al.  Introduction to Plasma Physics and Controlled Fusion , 2015 .