World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
80
Citations
18613
World Ranking
547
National Ranking
277

Physics

D-Index
81
Citations
19115
World Ranking
2968
National Ranking
1446

Overview

Jacob Bortnik is affiliated with the University of California, Los Angeles in the United States. Their research primarily spans the fields of Physics and Astronomy as well as Earth and Planetary Sciences, with a focus on the subfields of Astronomy and Astrophysics, Geophysics, Molecular Biology, Atmospheric Science, and Global and Planetary Change.

Their work covers multiple topics in Earth and space sciences. These include:

  • Ionosphere and magnetosphere dynamics
  • Solar and Space Plasma Dynamics
  • Earthquake Detection and Analysis
  • Geomagnetism and Paleomagnetism Studies
  • Astro and Planetary Science
  • Lightning and Electromagnetic Phenomena
  • Seismic Waves and Analysis

Jacob Bortnik has published extensively in several venues, frequently contributing to:

  • Journal of Geophysical Research Space Physics
  • Geophysical Research Letters
  • Space Weather
  • Zenodo (CERN European Organization for Nuclear Research)
  • arXiv (Cornell University)

Recent publications illustrate the range and relevance of Bortnik's research. Notable papers include:

  • "Diurnal and Seasonal Dynamics of Solar-Induced Chlorophyll Fluorescence, Vegetation Indices, and Gross Primary Productivity in the Boreal Forest" (2022) in the Journal of Geophysical Research Biogeosciences
  • "Global Model of Whistler Mode Chorus in the Near-Equatorial Region (|λm|< 18°)" (2020) in Geophysical Research Letters
  • "The Characteristics of EMIC Waves in the Magnetosphere Based on the Van Allen Probes and Arase Observations" (2021) in Journal of Geophysical Research Space Physics
  • "Relativistic Electron Model in the Outer Radiation Belt Using a Neural Network Approach" (2021) in Space Weather
  • "The Electric and Magnetic Fields Instrument Suite and Integrated Science (EMFISIS): Science, Data, and Usage Best Practices" (2023) in Space Science Reviews

Collaborations with other researchers form an integral part of Bortnik's publication record. Frequent coauthors include:

  • Qianli Ma (44 joint publications)
  • Xiangning Chu (25 joint publications)
  • Xiao-Jia Zhang (25 joint publications)
  • Anton Artemyev (24 joint publications)
  • Wen Li (23 joint publications)

Best Publications

  • Rapid local acceleration of relativistic radiation-belt electrons by magnetospheric chorus

    R. M. Thorne;W Li;B Ni;Q. Ma

  • Resonant scattering of plasma sheet electrons by whistler-mode chorus: Contribution to diffuse auroral precipitation

    Binbin Ni;Richard M. Thorne;Yuri Y. Shprits;Jacob Bortnik

  • The unexpected origin of plasmaspheric hiss from discrete chorus emissions.

    Jacob Bortnik;Richard M. Thorne;Nigel P. Meredith

  • Global distribution of whistler‐mode chorus waves observed on the THEMIS spacecraft

    W. Li;R. M. Thorne;V. Angelopoulos;J. Bortnik

  • Identifying the Driver of Pulsating Aurora

    Y. Nishimura;Y. Nishimura;J. Bortnik;W. Li;R. M. Thorne

  • Observations of relativistic electron microbursts in association with VLF chorus

    K. R. Lorentzen;J. B. Blake;U. S. Inan;J. Bortnik

  • Global distribution of wave amplitudes and wave normal angles of chorus waves using THEMIS wave observations

    W. Li;J. Bortnik;R. M. Thorne;V. Angelopoulos

  • THEMIS observations of electromagnetic ion cyclotron wave occurrence: Dependence on AE, SYMH, and solar wind dynamic pressure

    M. E. Usanova;I. R. Mann;J. Bortnik;J. Bortnik;L. Shao

  • Nonlinear interaction of energetic electrons with large amplitude chorus

    J. Bortnik;R. M. Thorne;U. S. Inan

  • Radiation belt electron acceleration by chorus waves during the 17 March 2013 storm

    W. Li;R. M. Thorne;Q. Ma;B. Ni

  • The dual role of ELF/VLF chorus waves in the acceleration and precipitation of radiation belt electrons

    J. Bortnik;R.M. Thorne

  • Resonant scattering and resultant pitch angle evolution of relativistic electrons by plasmaspheric hiss

    Binbin Ni;Jacob Bortnik;Richard M. Thorne;Qianli Ma

  • Resonant scattering of outer zone relativistic electrons by multiband EMIC waves and resultant electron loss time scales

    Binbin Ni;Xing Cao;Zhengyang Zou;Chen Zhou

  • An Observation Linking the Origin of Plasmaspheric Hiss to Discrete Chorus Emissions

    J. Bortnik;W. Li;R. M. Thorne;V. Angelopoulos

  • Statistical properties of plasmaspheric hiss derived from Van Allen Probes data and their Effects on radiation belt electron dynamics

    W. Li;Q. Ma;R. M. Thorne;J. Bortnik

  • Observation of two distinct, rapid loss mechanisms during the 20 November 2003 radiation belt dropout event

    J. Bortnik;R. M. Thorne;T. P. O'Brien;J. C. Green

  • THEMIS analysis of observed equatorial electron distributions responsible for the chorus excitation

    W. Li;R. M. Thorne;Y. Nishimura;Y. Nishimura;J. Bortnik

  • Evolution and slow decay of an unusual narrow ring of relativistic electrons near L~3.2 following the September 2012 magnetic storm

    R. M. Thorne;W. Li;B. Ni;Q. Ma

  • Origins of the Earth’s Diffuse Auroral Precipitation

    Binbin Ni;Richard M. Thorne;Xiaojia Zhang;Jacob Bortnik

  • Constructing the global distribution of chorus wave intensity using measurements of electrons by the POES satellites and waves by the Van Allen Probes

    W. Li;B. Ni;R. M. Thorne;J. Bortnik

  • Radiation belt electron acceleration by chorus waves during the 17 March 2013 storm

    R. M. Thorne;W. Li;Q. Ma;B. Ni

Frequent Co-Authors

Richard M. Thorne
Richard M. Thorne University of California, Los Angeles
Vassilis Angelopoulos
Vassilis Angelopoulos University of California, Los Angeles
Craig Kletzing
Craig Kletzing University of Iowa
Harlan E. Spence
Harlan E. Spence University of New Hampshire
William S. Kurth
William S. Kurth University of Iowa
Yukitoshi Nishimura
Yukitoshi Nishimura Boston University
Geoffrey D. Reeves
Geoffrey D. Reeves Los Alamos National Laboratory
Daniel N. Baker
Daniel N. Baker University of Colorado Boulder
Richard B. Horne
Richard B. Horne British Antarctic Survey
J. B. Blake
J. B. Blake The Aerospace Corporation

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