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Dmitri Kondrashov

Researcher, TCD/AOS

dkondras@atmos.ucla.edu


Biography

Dr. Kondrashov obtained his undergraduate degree from the Moscow Institute of Physics and Technology in 1990. After completing his PhD at the University of Tennessee in 1996, Dr. Kondrashov had been a postdoctoral scholar at the California Institute of Technology. Since 1999 he has been affiliated with the Department of Atmospheric and Oceanic Sciences at UCLA. His research focuses on data-driven modeling and prediction for earth and space sciences, data assimilation, advanced spectral methods, and time series analysis.

Personal Site
http://www.atmos.ucla.edu/tcd/dkondras

Publications

  1. Drozdov A. Y., D. Kondrashov, K. Strounine, Y. Y. Shprits, (2023), Reconstruction of electron radiation belts using data assimilation and machine learning, Frontiers In Astronomy And Space Sciences, 10, doi:10.3389/fspas.2023.1072795
  2. Kondrashov D., A. Y. Drozdov, D. Vech, D. M. Malaspina, (2022), Prediction of plasmaspheric hiss spectral classes, Frontiers In Astronomy And Space Sciences, 9, doi:10.3389/fspas.2022.977801
  3. Podladchikova T. V., Y. Y. Shprits, D. Kondrashov, A. C. Kellerman, (2014), Noise statistics identification for Kalman filtering of the electron radiation belt observations I: Model errors, J. Geophys. Res. [Space Physics], 119, 5700-5724, doi:10.1002/2014JA019897
  4. Podladchikova T. V., Y. Y. Shprits, A. C. Kellerman, D. Kondrashov, (2014), Noise statistics identification for Kalman filtering of the electron radiation belt observations: 2. Filtration and smoothing, J. Geophys. Res. [Space Physics], 119, 5725-5743, doi:10.1002/2014JA019898
  5. Kellerman A. C., Y. Y. Shprits, D. Kondrashov, D. Subbotin, R. A. Makarevich, E. Donovan, T. Nagai, (2014), Three-dimensional data assimilation and reanalysis of radiation belt electrons: Observations of a four-zone structure using five spacecraft and the VERB code, J. Geophys. Res. [Space Physics], 119, 8764-8783, doi:10.1002/2014JA020171
  6. Shprits Y., A. Kellerman, D. Kondrashov, D. Subbotin, (2013), Application of a new data operator-splitting data assimilation technique to the 3-D VERB diffusion code and CRRES measurements, Geophysical Research Letters, 40, 4998-5002, doi:10.1002/grl.50969
  7. Daae M., Y. Y. Shprits, B. Ni, J. Koller, D. Kondrashov, Y. Chen, (2011), Reanalysis of radiation belt electron phase space density using various boundary conditions and loss models, Advances In Space Research, 48, 1327 – 1334, doi:10.1016/j.asr.2011.07.001
  8. Kondrashov D., Y. Shprits, M. Ghil, (2010), Gap filling of solar wind data by singular spectrum analysis, Geophysical Research Letters, 37, doi:10.1029/2010GL044138
  9. Ni B., Y. Shprits, T. Nagai, R. Thorne, Y. Chen, D. Kondrashov, H. Kim, (2009), Reanalyses of the radiation belt electron phase space density using nearly equatorial CRRES and polar-orbiting Akebono satellite observations, J. Geophys. Res. [Space Physics], 114, doi:10.1029/2008JA013933
  10. Kondrashov D., Y. Shprits, M. Ghil, R. Thorne, (2007), A Kalman filter technique to estimate relativistic electron lifetimes in the outer radiation belt, J. Geophys. Res. [Space Physics], 112, doi:10.1029/2007JA012583
  11. Shprits Y., D. Kondrashov, Y. Chen, R. Thorne, M. Ghil, R. Friedel, G. Reeves, (2007), Reanalysis of relativistic radiation belt electron fluxes using CRRES satellite data, a radial diffusion model, and a Kalman filter, J. Geophys. Res. [Space Physics], 112, doi:10.1029/2007JA012579
  12. Kondrashov D., M. Ghil, (2006), Spatio-temporal filling of missing points in geophysical data sets, Nonlinear Processes In Geophysics, 13, 151–159, doi:10.5194/npg-13-151-2006
  13. Ghil M., M. R. Allen, M. D. Dettinger, K. Ide, D. Kondrashov, M. E. Mann, A. W. Robertson, A. Saunders, Y. Tian, F. Varadi, P. Yiou, (2001), Advanced Spectral Methods for Climatic Time Series, Rev. Geophys., 4
  1. Kondrashov D., A. Y. Drozdov, D. Vech, D. M. Malaspina, (2022), Prediction of plasmaspheric hiss spectral classes, Frontiers In Astronomy And Space Sciences, 9, doi:10.3389/fspas.2022.977801
  2. Kondrashov D., R. Denton, Y. Y. Shprits, H. J. Singer, (2014), Reconstruction of gaps in the past history of solar wind parameters, Geophysical Research Letters, 41, 2702-2707, doi:10.1002/2014GL059741
  3. Kondrashov D., Y. Shprits, M. Ghil, (2010), Gap filling of solar wind data by singular spectrum analysis, Geophysical Research Letters, 37, doi:10.1029/2010GL044138
  4. Kondrashov D., Y. Shprits, M. Ghil, R. Thorne, (2007), A Kalman filter technique to estimate relativistic electron lifetimes in the outer radiation belt, J. Geophys. Res. [Space Physics], 112, doi:10.1029/2007JA012583
  5. Kondrashov D., M. Ghil, (2006), Spatio-temporal filling of missing points in geophysical data sets, Nonlinear Processes In Geophysics, 13, 151–159, doi:10.5194/npg-13-151-2006

Book Chapters:

  1. S. Kravtsov, D. Kondrashov and M. Ghil, 2009: Empirical Model Reduction and the Modeling Hierarchy in Climate Dynamics, invited chapter in Stochastic Physics and Climate Modelling, (T. Palmer and P. Williams, Eds.) Cambridge Univ. Press, pp. 35–72.

Journal Papers:

  1. Kondrashov, D., R. Denton, Y. Y. Shprits, H. J. Singer (2014), Reconstruction of gaps in the past history of solar wind parameters, Geophys. Res. Lett., 41(8), 2702–2707, doi:10.1002/2014GL059741
  2. Kondrashov, D., M.D. Chekroun, and M. Ghil (2015), Data-driven non-Markovian closure models, Physica D., 297(3), 33-55, doi:10.1016/j.physd.2014.12.005
  3. Podladchikova, T. V., Y. Y. Shprits, D. Kondrashov, and A. C. Kellerman (2014), Noise statistics identification for Kalman filtering of the electron radiation belt observations I: Model errors, J. Geophys. Res. Space Physics, 119, 5700–5724, doi:10.1002/2014JA019897
  4. Kondrashov, D., M. Ghil, Y. Y. Shprits (2011), Lognormal Kalman filter for assimilating phase space density data in the radiation belts, Space Weather, 9, S11006, doi:10.1029/2011SW000726
  5. Kondrashov, D. , Y. Y. Shprits, M. Ghil, R. Thorne (2007), A Kalman filter technique to estimate relativistic electron lifetimes in the outer radiation belt, J. Geophys. Res., 112, A10227, doi:10.1029/2007JA012583
  6. Kondrashov, D. and M. Ghil. (2006), Spatio-temporal filling of missing points in geophysical data sets, Nonl. Proc. Geophys., 13, 151-159, doi:10.5194/npg-13-151-2006
  7. Ghil M., R. M. Allen, M. D. Dettinger, K. Ide, D. Kondrashov et al. (2002), Advanced spectral methods for climatic time series, Rev. Geophys.,40(1), pp. 3.1–3.41, doi:10.1029/2000GR000092

Conference presentations

  1. Kondrashov D., A. Drozdov, Y. Shprits, (2023), Reconstruction of Electron Radiation Belts Using Machine Learning and Data Assimilation, AOGS 2023, July 30 – August 04
  2. Kondrashov D., K. Strounine, A. Drozdov, Y. Shprits, (2022), Neural Network Model for Specification and Data Assimilation of Radiation Belts Environment, (poster), 44rd COSPAR Scientific Assembly, 16 July – 24 July, 2022, Athens, Greece
  3. Kondrashov D., A. Drozdov, Y. Shprits, (2021), Neural Network Model for Specification of Radiation Belts Environment, Iceaa-ieee Apwc-usnc URSI RSM 2021, August 9-13, 2021
  4. Kondrashov D. A., M. Chekroun, M. Ghil, X. Yuan, M. Ting, (2015), Data-driven Analysis and Prediction of Arctic Sea Ice, AGU Fall Meeting 2015, San Francisco, CA, 14-18 December
  5. Kondrashov D., R. Denton, Y. Y. Shprits, H. Singer, (2014), Reconstruction of gaps in the past history of solar wind parameters, EGU General Assembly 2014, EGU, Vienna, Austria, 27 April – 2 May
  6. Kondrashov D., R. Denton, Y. Y. Shprits, H. Singer, (2014), Reconstruction of gaps in the past history of solar wind parameters, Noaa Space Weather Prediction Center, Boulder, Colorado.
  7. Kondrashov D., A. C. Kellerman, Y. Y. Shprits, (2014), Data-driven approach for radiation-belt modeling and prediction, 40th Cospar Scientific Assembly, Moscow, Russia, 2-10 August.
  8. Kondrashov D. Y., A. C. Kellerman, M. Ghil, (2013), Geomagnetic Reconstruction in Gaps of Solar Wind Parameters by Singular Spectrum Analysis, EGU General Assembly 2013, Vol 16, EGU, Vienna, Austria, 2013
  9. Kondrashov D., Y. Y. Shprits, M. Ghil, (2011), Split-Operator Kalman Filter as an efficient data assimilation method for the radiation belts, EGU General Assembly 2011, Vienna, Austria, 2011
  10. Kondrashov D., Y. Y. Shprits, M. Ghil, (2010), Challenges and Innovations in Data Assimilation for Radiation Belts, EGU General Assembly 2010, Vienna, Austria, 2010
  11. Kondrashov D., Y. Y. Shprits, M. Ghil, (2010), Innovation Approach of Assimilating Radiation Belt Data Into RB Codes, EGU General Assembly 2010, Vienna, Austria, 2010
  12. Kondrashov D. A., M. Ghil, Y. Y. Shprits, (2009), Challenges and innovations in data assimilation for radiation belts, AGU 2009 Fall Meeting, Eos Trans, 90(52), San Francisco, CA, 14-18 December
  13. Kondrashov D., Y. Y. Shprits, (2009), Gap-filling of Solar Wind Parameters by Singular Spectrum Analysis, EGU General Assembly 2009, Vienna, Austria, 2009
  14. Kondrashov D., Y. Y. Shprits, R. Thorne, M. Ghil, G. Reeves, R. Friedel, (2005), Optimal Estimation of Electron Lifetimes in the Outer Radiation Belt, AGU Fall Meeting 2005, San Francisco, CA, 3-9 December
  1. Kondrashov D., A. Drozdov, Y. Shprits, (2023), Reconstruction of Electron Radiation Belts Using Machine Learning and Data Assimilation, AOGS 2023, July 30 – August 04
  2. Saikin A. A., A. Y. Drozdov, A. Jaynes, D. Kondrashov, Y. Y. Shprits, (2023), The role of local and radial diffusion in multi-MeV electron acceleration, GEM Summer Workshop 2023, June 11-16, 2023
  3. Drozdov A. Y., Y. Y. Shprits, D. Kondrashov, B. Haas, Q. Shiller, D. Wang, A. Saikin, S. Cervantes Villa, A. Castillo Tibocha, (2023), Data assimilation of the radiation environment with the Versatile Electron Radiation Belt (VERB) code, LMAG 2023
  4. Drozdov A. Y., H. J. Allison, Y. Y. Shprits, M. E. Usanova, D. Wang, Q. Shiller, A. Saikin, A. Jaynes, D. Kondrashov, (2023), Loss and Acceleration of multi-MeV Electrons and Their Corresponding Dynamic of Phase Space Density Profiles, (invited), Isradynamics 2023, Dead Sea, Israel
  5. Schiller Q., Y. Y. Shprits, A. Drozdov, D. A. Kondrashov, K. Strounine, (2022), An OSSE Using the VERB Code for Outer Electron Radiation Belt Situational Awareness, AGU 2022 Fall Meeting, SM25C-1999
  6. Saikin A., A. Drozdov, A. N. Jaynes, D. A. Kondrashov, Y. Y. Shprits, (2022), Local Acceleration in multi-MeV electron enhancement events, AGU 2022 Fall Meeting, SM42D-2207
  7. Shprits Y., D. Wang, D. Kondrashov, L. Rastaetter, Y. Zheng, (2022), Versatile Electron Radiation Belt (VERB) code at CCMC, 2022 CCMC Workshop, University of Maryland, College Park, Maryland on June 6 – June 10, 2022.
  8. Kondrashov D., K. Strounine, A. Drozdov, Y. Shprits, (2022), Neural Network Model for Specification and Data Assimilation of Radiation Belts Environment, (poster), 44rd COSPAR Scientific Assembly, 16 July – 24 July, 2022, Athens, Greece
  9. Kondrashov D., A. Drozdov, Y. Shprits, (2021), Neural Network Model for Specification of Radiation Belts Environment, Iceaa-ieee Apwc-usnc URSI RSM 2021, August 9-13, 2021
  10. Kellerman A., Y. Shprits, R. McPherron, D. Kondrashov, J. Weygand, H. Zhu, A. Drozdov, (2018), The radiation-belt electron phase-space-density response to stream-interaction regions: Multi-point observations, data-assimilation, physics-based modeling, and forecasting, EGU General Assembly 2018, EGU General Assembly Conference Abstracts, 8159
  11. Kellerman A., Y. Shprits, D. Kondrashov, H. Zhu, A. Drozdov, (2017), Data assimilation and forecasting of radiation-belt electrons, EGU General Assembly 2017, EGU2017, proceedings from the conference held 23-28 April, 2017 in Vienna, Austria., p.11188
  12. Shprits Y., I. S. Zhelavskaya, A. C. Kellerman, M. Spasojevic, D. A. Kondrashov, M. Ghil, N. Aseev, A. M. Castillo Tibocha, J. S. Cervantes Villa, C. Kletzing, W. S. Kurth, (2017), Obtaining Global Picture From Single Point Observations by Combining Data Assimilation and Machine Learning Tools, AGU 2017 Fall Meeting
  13. Kellerman A. C., Y. Shprits, R. L. McPherron, D. A. Kondrashov, J. M. Weygand, H. Zhu, A. Drozdov, (2017), The radiation-belt electron phase-space-density response to stream-interaction regions: A study combining multi-point observations, data-assimilation, and physics-based modeling, AGU 2017 Fall Meeting
  14. Kellerman A., D. Kondrashov, Y. Shprits, T. Podladchikova, A. Drozdov, (2016), Reanalysis and forecasting killer electrons in Earth’s radiation belts using the VERB code, 41st Cospar Scientific Assembly, abstracts from the meeting that was to be held 30 July – 7 August at the Istanbul Congress Center(ICC), Turkey, but was cancelled.,Abstract id.# PRBEM.1-7-16.
  15. Kellerman A. C., Y. Shprits, D. A. Kondrashov, T. Podladchikova, A. Drozdov, D. Subbotin, R. A. Makarevich, E. Donovan, T. Nagai, (2015), Three-dimensional data assimilation and reanalysis of radiation belt electrons: Observations over two solar cycles, and operational forecasting., AGU Joint Assembly 2015, SM52A-05
  16. Shprits Y., A. C. Kellerman, T. Podladchikova, D. A. Kondrashov, M. Ghil, (2015), Data assimialation for real-time prediction and reanalysis, AGU Fall Meeting 2015, San Francisco, CA, 14-18 December
  17. Kellerman A. C., Y. Shprits, D. A. Kondrashov, T. Podladchikova, A. Drozdov, D. Subbotin, R. A. Makarevich, E. Donovan, T. Nagai, (2015), Three-dimensional data assimilation and reanalysis of radiation belt electrons: Observations over two solar cycles, AGU Fall Meeting 2015, San Francisco, CA, 14-18 December
  18. Kondrashov D. A., M. Chekroun, M. Ghil, X. Yuan, M. Ting, (2015), Data-driven Analysis and Prediction of Arctic Sea Ice, AGU Fall Meeting 2015, San Francisco, CA, 14-18 December
  19. Kondrashov D., R. Denton, Y. Y. Shprits, H. Singer, (2014), Reconstruction of gaps in the past history of solar wind parameters, Noaa Space Weather Prediction Center, Boulder, Colorado.
  20. Kondrashov D., R. Denton, Y. Y. Shprits, H. Singer, (2014), Reconstruction of gaps in the past history of solar wind parameters, EGU General Assembly 2014, EGU, Vienna, Austria, 27 April – 2 May
  21. Kellerman A. C., Y. Y. Shprits, D. Kondrashov, D. Subbotin, T. Podladchikova, A. Y. Drozdov, (2014), 3D reanalysis: a global measure of radiation belt state, GEM Summer Workshop 2014, Portsmouth, VA, June 15-20.
  22. Kellerman A. C., Y. Y. Shprits, D. Kondrashov, T. Podladchikova, A. Y. Drozdov, (2014), MLT-dependent reanalysis of radiation belt electrons: Case studies using several satellites and different magnetic field models, GEM Summer Workshop 2014, Portsmouth, VA, June 15-20.
  23. Kellerman A. C., Y. Y. Shprits, D. Kondrashov, T. Podladchikova, A. Y. Drozdov, D. Turner, (2014), Radiation belt electron reanalysis over two solar cycles: comparative modeling and analysis of several geomagnetic storms, 40th Cospar Scientific Assembly, Moscow, Russia, 2-10 August.
  24. Kondrashov D., A. C. Kellerman, Y. Y. Shprits, (2014), Data-driven approach for radiation-belt modeling and prediction, 40th Cospar Scientific Assembly, Moscow, Russia, 2-10 August.
  25. Podladchikova T., Y. Y. Kellerman, D. Kondrashov, (2014), Optimal smoothing of the electron radiation belts observations using the observation errors identification, 40th Cospar Scientific Assembly, Moscow, Russia, 2-10 August.
  26. Podladchikova T., Y. Y. Shprits, D. Kondrashov, A. C. Kellerman, (2014), Model error identification for the radiation belt data assimilation, 40th Cospar Scientific Assembly, Moscow, Russia, 2-10 August.
  27. Kellerman A. C., Y. Y. Shprits, G. Stephens, D. Kondrashov, A. Y. Drozdov, T. Podladchikova, (2014), MLT-Dependent 3D reanalysis of radiation belt elections: quantifying errors in current and future magnetic field models, AGU Fall Meeting 2014, San Francisco, 14-18 December
  28. Podladchikova T., Y. Y. Shprits, A. C. Kellerman, D. Kondrashov, (2014), Kalman filtering and smoothing of radiation belt observations on the basis of model and measurement error identification, AGU Fall Meeting 2014, San Francisco, 14-18 December
  29. Shprits Y. Y., A. C. Kellerman, D. Subbotin, D. A. Kondrashov, M. Daae, D. L. Turner, (2013), 3D Data assimilation in the radiation belts, AGU Fall Meeting 2013
  30. Kellerman A. C., D. A. Kondrashov, T. Podladchikova, A. Y. Drozdov, D. Subbotin, (2013), Multi-Spacecraft Data Assimilation and Reanalysis During the THEMIS and Van Allen Probes Era, GEM Summer Workshop 2013, San Francisco, USA, 2013
  31. Kellerman A. C., D. A. Subbotin, D. Kondrashov, (2013), 3D Data assimilation during the CRRES era March storm, GEM Summer Workshop 2013, THEMIS/ARTEMIS 2013 Spring SWG Meeting, Fairbanks, Alaska, 2013.
  32. Kellerman A. C., D. Kondrashov, D. A. Subbotin, (2013), Multi-point data assimilation using the 3D VERB code and a Kalman filter during the GEM challenge interval, GEM Summer Workshop 2013, Snowmass, CO, 2013.
  33. Kondrashov D. Y., A. C. Kellerman, M. Ghil, (2013), Geomagnetic Reconstruction in Gaps of Solar Wind Parameters by Singular Spectrum Analysis, EGU General Assembly 2013, Vol 16, EGU, Vienna, Austria, 2013
  34. Shprits Y. Y., D. A. Kondrashov, A. C. Kellerman, D. Subbotin, (2012), 3D Data Assimilation using VERB Diffusion Code, AGU 2012 Fall Meeting, San Francisco, USA, 2012
  35. Shprits Y. Y., M. Daae, B. Ni, D. Kondrashov, M. Ghil, (2012), Influence of solar wind and plasmasphere on radiation belts fluxes, EGU General Assembly 2012, Vienna, Austria, 2012
  36. Kondrashov D., Y. Y. Shprits, M. Ghil, (2011), Split-Operator Kalman Filter as an efficient data assimilation method for the radiation belts, EGU General Assembly 2011, Vienna, Austria, 2011
  37. Shprits Y. Y., D. Subbotin, B. Ni, D. Kondrashov, (2010), Understanding the electrons radiation belts using modeling and observations, EGU General Assembly 2010, Vienna, Austria, 2010
  38. Shprits Y. Y., D. Subbotin, B. Ni, M. Daae, D. A. Kondrashov, M. Hartinger, K. Kim, K. G. Orlova, T. Nagai, R. H. Friedel, Y. Chen, (2010), Comparison of the 3D VERB Code Simulations of the Dynamic Evolution of the Outer and Inner Radiation Belts With the Reanalysis Obtained from Observations on Multiple Spacecraft, AGU Fall Meeting 2010, San Francisco, CA, USA, 2010
  39. Kondrashov D., Y. Y. Shprits, M. Ghil, (2010), Innovation Approach of Assimilating Radiation Belt Data Into RB Codes, EGU General Assembly 2010, Vienna, Austria, 2010
  40. Kondrashov D., Y. Y. Shprits, M. Ghil, (2010), Challenges and Innovations in Data Assimilation for Radiation Belts, EGU General Assembly 2010, Vienna, Austria, 2010
  41. Daae M., Y. Y. Shprits, B. Ni, J. Koller, D. Kondrashov, Y. Chen, (2010), Reanalysis of Radiation Belt Electron Phase Space Density using the UCLA 1-D VERB code and Kalman filtering: Sensitivity to assumed boundary conditions and changes in the loss model, EGU General Assembly 2010, Vienna, Austria, 2010
  42. Shprits Y., B. Ni, D. Subbotin, A. Kondrashov, M. Daae, M. Thorne, T. Nagai, H. Friedel, Chen, J. Koller, D. Reeves, (2009), Dynamic evolution of the radiation belt phase space density obtained with reanalysis with simultaneous observations from four spacecraft, AGU 2009 Fall Meeting
  43. Shprits Y. Y., Y. Chen, R. Friedel, D. Kondrashov, B. Ni, D. Subbotin, G. Reeves, M. Ghil, (2009), UCLA-LANL Reanalysis Project, EGU General Assembly 2009, Vienna, Austria, 2009
  44. Kondrashov D., Y. Y. Shprits, (2009), Gap-filling of Solar Wind Parameters by Singular Spectrum Analysis, EGU General Assembly 2009, Vienna, Austria, 2009
  45. Kondrashov D. A., M. Ghil, Y. Y. Shprits, (2009), Challenges and innovations in data assimilation for radiation belts, AGU 2009 Fall Meeting, Eos Trans, 90(52), San Francisco, CA, 14-18 December
  46. Shprits Y. Y., Y. Chen, D. Kondrashov, (2008), Reanalysis of relativistic electron phase space density, 37th Cospar Scientific Assembly, p. 2877, Montréal, Canada., 13-20 July.
  47. Ni B., Y. Y. Shprits, T. Nagai, R. Thorne, Y. Chen, D. Kondrashov, (2008), Reanalysis of radiation belt electron phase space density using CRRES and Akebono Observations, AGU Fall Meeting 2008, 15-19 December
  48. Kondrashov D., Y. Y. Shprits, R. Thorne, M. Ghil, G. Reeves, R. Friedel, (2005), Optimal Estimation of Electron Lifetimes in the Outer Radiation Belt, AGU Fall Meeting 2005, San Francisco, CA, 3-9 December
  1. D. A. Kondrashov, M. Chekroun, M. Ghil, X. Yuan, and M. Ting (2015), Data-driven Analysis and Prediction of Arctic Sea Ice, Abstract A53C-0392 presented at 2015 fall meeting AGU, San Francisco, CA.
  2. Kondrashov, D., R. Denton, Y. Y. Shprits, and H. Singer (2014), Reconstruction of gaps in the past history of solar wind parameters, Abstract presented at 2014 General Assembly, EGU, Vienna, Austria.
  3. Kondrashov, D., R. Denton, Y. Y. Shprits, and H. Singer (2014), Reconstruction of gaps in the past history of solar wind parameters, Abstract presented at NOAA Space Weather Prediction Center, Boulder, Colorado.
  4. Kondrashov, D., A. C. Kellerman, and Y. Y. Shprits (2014), Data-driven approach for radiation-belt modeling and prediction, Abstract presented at 40th COSPAR Scientific Assembly, Moscow, Russia.
  5. Kondrashov, D., Y. Y. Shprits, A. C. Kellerman, M. Ghil, Geomagnetic Reconstruction in Gaps of Solar Wind Parameters by Singular Spectrum Analysis, Geophysical Research Abstracts, Vol. 16, EGU, Vienna, Austria.
  6. Kondrashov, D., Y. Y. Shprits, M. Ghil, Split-Operator Kalman Filter as an efficient data assimilation method for the radiation belts, EGU, Vienna, Austria, 2011.
  7. Kondrashov, D., Y. Y. Shprits, M. Ghil, Challenges and Innovations in Data Assimilation for Radiation Belts, EGU, Vienna, Austria, 2010.
    Kondrashov, D., Y. Y. Sprits, M. Ghil, Innovation Approach of Assimilating Radiation Belt Data Into RB Codes, EGU, Vienna, Austria, 2010.
  8. Kondrashov, D. A., M. Ghil, and Y. Y. Shprits (2009), Challenges and innovations in data assimilation for radiation belts, Abstract SM51A-1331 was presented at 2009 Fall Meeting, AGU, Eos Trans., 90(52), San Francisco, CA, 14-18 December.
  9. Kondrashov, D., and Y. Y. Shprits (2009), Gap-filling of Solar Wind Parameters by Singular Spectrum Analysis, EGU, Vienna, Austria, 2009.
  10. Kondrashov, D., Y. Y. Shprits, R. Thorne, M. Ghil, G. Reeves, and R. Friedel (2005), Optimal Estimation of Electron Lifetimes in the Outer Radiation Belt, Abstract SM12B-07 presente at 2005 Fall Meeting, AGU, San Francisco, CA.