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Publications & Presentations Contact me for re-prints |
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Yizengaw, E., M. B. Moldwin, B. Wilson, and A. Mannucci, Accuracy of TOPEX and JASON altimeter TEC and its effect of sea surface estimation, Soon to be Submitted to Radio Science. (May. 2008).
Yizengaw, E., M. B. Moldwin, D. Galvan, B. A. Iijima, A. Komjathy, and A. Mannucci (2008), The global plasmaspheric TEC and its contribution to the GPS TEC, J. Atmos. Solar-Terr. Phys., 70, 1541-1548. ADS Abstract.
Yizengaw, E., J. Dewar, J. MacNeil, M. B. Moldwin, D. Galvan, J. Sanny, D. Berube, and Bill Sandel (2008), The occurrence of Ionospheric Signatures of Plasmaspheric Plumes over Different Longitudinal Sectors, J. Geophys. Res., 113, A08318, doi:10.1029/2007JA012925. ADS Abstract.
Yizengaw, E., and M. B. Moldwin (2008), African Meridian B-field Education and Research (AMBER) Array, Earth Moon Planet, (In Press).
Moldwin, M. B., E. Yizengaw, , D. K. Scherrer,M. C. Rabellosoares, and P. Reiff (2008), AGU Scientists Host Teacher Workshop in Ethiopia, Eos, Vol. 89, No. 10, 4 March 2008. ADS Abstract. Documentary (movie), produced by Geoffrey Haines- Stiles and NASA’s Passport to Knowledge team.
Yizengaw, E., M. B. Moldwin, P. L. Dyson, E. A. Essex (2007), Using Tomography of GPS TEC to Routinely Determine Ionospheric Average Electron Density Profiles, J. Atmos. Solar-Terr. Phys., 69, 314–321. ADS Abstract.
Yizengaw, E., P. L. Dyson, and E. A. Essex (2006), Tomographic observations of the topside ionospheric density distributions using the GPS receiver on FedSat, Adv. Space Res., 38, 2318-2323. ADS Abstract.
Yizengaw, E., M. B. Moldwin, P. L. Dyson, B. J. Fraser, and S. K. Morley (2006), First Tomographic Images of Ionospheric Outflows, Geophys. Res. Lett., 33, L20102, doi:10.1029/2006GL027698. ADS Abstract (GRL COVER PAGE). (AGU JOURNAL HIGHLIGHTS).
Yizengaw, E., M. B. Moldwin, and D. Galvan (2006), Ionospheric signatures of a plasmaspheric plume over Europe, Geophys. Res. Lett., 33, L17103, doi:10.1029/2006GL026597. ADS Abstract
Yizengaw, E., M. B. Moldwin, A. Komjathy, and A. J. Mannucci (2006), Unusual topside ionospheric density response to the November 2003 superstorm, J. Geophys. Res., 111, A02308, doi:10.1029/2005JA011433. ADS Abstract
Yizengaw, E., H. Wei, M. B. Moldwin, D. Galvan, L. L. Mandrake, A. Mannucci, and X. Pi (2005), The correlation between mid-latitude trough and the plasmapause, Geophys. Res. Lett., 32, L10102, doi:10.1029/2005GL022954. ADS Abstract
Yizengaw, E., and M. B. Moldwin (2005), The altitude extension of the mid-latitude trough and its correlation with plasmapause position, Geophys. Res. Lett.,32, L09105, doi:10.1029/2005GL022854. ADS Abstract (GRL COVER PAGE). (AGU JOURNAL HIGHLIGHTS).
Yizengaw, E., M. Moldwin, P. L. Dyson, and T. J. Immel (2005), The Southern Hemisphere ionosphere and plasmasphere response to the interplanetary shock event of 29-31 October 2003, J. Geophys. Res.,110, A09S30, doi:10.1029/2004JA010920. ADS Abstract
Yizengaw, E., P. L. Dyson, E. A. Essex, and M. B. Moldwin (2005), Ionosphere dynamics over the Southern Hemisphere during the 31 March 2001 severe magnetic storm using multi-instrument measurement data, Ann. Geophys. 23(3), 707-721. ADS Abstract
Yizengaw, E., E. A. Essex, and R. Birsa (2004), The Southern Hemisphere and Equatorial region ionization response for September 22, 1999 severe magnetic storm, Ann. Geophys. 22(8), 2765-2773. ADS Abstract
Parkinson, M. L., P. L. Dyson, M. Pinnock, J. C. Devlin, M. R. Hairston, E. Yizengaw, and P. J. Wilkinson (2002), Signatures of the midnight open-closed magnetic field-line boundary during balanced dayside and nightside reconnection, Ann. Geophys., 20(10), 1617-1630. ADS Abstract
Yizengaw, E., C.M. Hall, A.H. Manson, & C.E. Meek (1999), Nonvalidation of mesospheric horizontal wind fluctuations derived from temperature data via comparison with MF radar wind measurements, J. Geophys. Res. 104(D22), 27565-27572. ADS Abstract
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Yizengaw, E., P.L. Dyson, and E.A. Essex, Tomographic reconstruction of the ionosphere using ground-based GPS data in the Australian region, Workshop on Applications of Radio Science (WARS), Hobart, Australia, February 2004. Abstract PDF
Yizengaw, E., and E.A. Essex, Storm Time Seasonal Variation of TEC on the Southern Hemisphere Mid-Latitude Regions Using Signals from Gps Satellite, OIST-4 proceedings, 221-224, 2002. Abstract PDF
Yizengaw, E., and E.A. Essex, Use of GPS signals to study total electron content of the ionosphere during the geomagnetic storm on 22 September 1999 , Workshop on Applications of Radio Science (WARS), Blue Mountains, Australia, February 2002.
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Yizengaw, E., Imaging the Ionosphere, Ph.D. thesis, Department of Physics, La Trobe University, Australia, May 2004.
Yizengaw, E., Studies of temperature change in the mesosphere using OH-emissions: tools for monitoring climatic change, M.Sc. thesis, University of Tromso, Norway, May 1998.
Yizengaw, E., Measurement of Gamma ray emission using GeNa (Tl) detector, B.Sc. dissertation, Addis Ababa University, Ethiopia, July 1994.
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Yizengaw, E., M. B. Moldwin, A. Mebrahtu, R. F. Pfaff, E. Zesta, and B. Damtie (2008), Equatorial Electrojet Observations in the African Continent, Fall AGU, Abstract SA08***_**, 15-19 December 2008.
Moldwin, M. B., E. Yizengaw, and Y. Sahai (2008), Strong post-midnight Equatorial Ionospheric Anomaly and Equatorial spread F Observations during magnetically quiet period, Fall AGU, Abstract SA10***_**, 15-19 December 2008.
Yizengaw, E. and M. B. Moldwin (2008), Understanding the density structures of the ionosphere and plasmasphere, COSPAR, C11-0004-08. ADS Abstract.
Yizengaw, E. and M. B. Moldwin (2008), African Meridian B-field Education and Research (AMBER) Array, COSPAR, D12-0012-08. (Invited Talk). ADS Abstract.
Yizengaw, E. and M. B. Moldwin (2008), Multi-instrument observations of the ionospheric and plasmaspheric density structure, Eos Trans. AGU, 89(23), Jt. Assem. Suppl., Abstract SA43A-03. (Invited Talk). ADS Abstract.
Yizengaw, E. and M. B. Moldwin (2008), IHY objectives in the African ionospheric irregularities observation campaign, Eos Trans. AGU, 89(23), Jt. Assem. Suppl., Abstract SH53A-09. (Oral Talk). ADS Abstract.
Scherrer, D. K, M. Moldwin, M. Rabella-Soares, P. Reiff, C. Sumners, and E. Yizengaw (2008), Teaching Teachers in Ethiopia, Eos Trans. AGU, 89(23), Jt. Assem. Suppl., Abstract ED31B-05. ADS Abstract.
Yizengaw, E. (2008), Multi-Instrument Observations to Mitigate Space Weather Impacts on our Communication and Navigation Systems, UCLA, IGPP seminar, February 26, 2008. (Invited Talk)
Yizengaw, E. (2008), Multi-instrument observations to mitigate space weather impacts on technological systems, Air Force Research Laboratory, Hanscom AFB, Boston, February 5, 2008. (Invited Talk)
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Yizengaw, E. and M. Moldwin (2007), AMBER and AGREES projects, IHY-Africa Space Weather Science and Education Workshop, Addis Ababa, Ethiopia, 12-16, November, 2007. (Oral Talk)
Yizengaw, E. (2007), Space weather impacts on our communication and navigation systems, Naval Research Laboratory, Washington DC, September 7,2007. (Invited Talk)
Yizengaw, E. and M. Moldwin (2007), Coordinated ground-based and satellite observations of magnetosphere-ionosphere coupling process, IUGG XXIV Assembly, Perugia, Italy, 2–13 July 2007. (Oral Talk)
Yizengaw, E. and M. Moldwin (2007), Multi-instrument observations of inner-magnetospheric density structures and dynamics, CEDAR-DASI Workshop, Santa Fe, New Mexico, 24-29 June 2007. (Oral Talk, CEDAR/GEM Post-Doc Report)
Yizengaw, E. and M. Moldwin (2007), The role of the plasmasphere in the dynamics of ionospheric density structures, Eos Trans. AGU, 88(23), Jt. Assem. Suppl., Abstract SM24A-03, Acapulco, Mexico, 22–25 May 2007. (Invited Talk)
Galvan, D. A., E. Yizengaw, M. Moldwin, G. Hajj, T. Mannucci, and B. Sandel (2007), TI: Comparison of EUV Brightness With Line-of-Sight Total Electron Content in the Earth's Plasmasphere, Eos Trans. AGU, 88(23), Jt. Assem. Suppl., Abstract SM24A-04, Acapulco, Mexico, 22–25 May 2007.
Moldwin, M. and E. Yizengaw (2007), Development of a 3D topside ionosphere-plasmasphere density model using LEO-Satellite GPS TEC tomography, presented at the LWS Geostorm CDAW and Conferen, Florida Tech - Melbourne, FL, 5-9 March 2007.
Yizengaw, E., M. Moldwin, and D. Galvan (2007), Ionospheric Signatures of a Plasmaspheric Plume Over Europe, presented at the Chapman Conference on Mid-latitude Ionospheric Dynamics and Disturbances, Yosemite National Park, California, USA, 3-6 January 2007. (Oral Talk)
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Yizengaw, E. (2006), Combining multi-instrument data to obtain a 3D inner-magnetospheric density model: an important tool to improve our way of life, presented to the La Trobe University Space physics Seminar, December, 2006. (Oral Talk)
Dewar, J., J. MacNeil, E. Yizengaw, D. Galvan, D. Berube, M. B. Moldwin, J. Sanny (2006), Ionospheric Signatures of Plasmaspheric Plumes over Different Longitudinal Sectors: A Comprehensive Study, Eos Trans. AGU,87(52), Fall Meet. Suppl., Abstract SA41A-1404. ADS Abstract
Yizengaw, E., T. Hsu, M. B. Moldwin, R. McPherron, D. Galvan, A. Komjathy, and A. Mannucci (2006), An Investigation of Total Electron Content (TEC) Perturbations during Storm-Time Substorms and Non-Storm Substorms, Eos Trans. AGU,87(52), Fall Meet. Suppl., Abstract SA41A-1405. ADS Abstract
Yizengaw, E. (2006), Application of Tomographic Imaging Technique to image MI coupling, The Second UN/NASA Workshop on the International Heliophysical Year and Basic Space Sciences, Bangalore, India , November 27- December 1, 2006. (Invited Talk)
Yizengaw, E. (2006), Space weather impacts on our communication and navigation systems monitored by ground- and space-based instruments, Australian Institute of Physics 17th National Congress, 3 – 8 December 2006. (Invited Keynote Address)
Moldwin, M. B.and E. Yizengaw (2006), Everything but the kitchen sink: Physical models, ULF resonance, GPS TEC, multi-diagnostic-multi-satellite in situ, and EUV imaging data combined to create a 3D inner magnetospheric density model, presented to the UC-Riverside IGPP Seminar, September, 2006.
Yizengaw, E. and M. B. Moldwin (2006), Studying the Dynamics of Magnetosphere-Ionosphere (M-I) Coupling by Imaging the Plasma Density Structures of the Inner Magnetosphere, 36th COSPAR Scientific Assembly, Beijing, China, 16 – 23 July 2006, Paper#: C1.1-0012-06. (Oral Talk) ADS Abstract
Yizengaw, E. and M. B. Moldwin (2006), Ionospheric signatures of a plasmaspheric plume over Europe, Eos Trans. AGU, 87(36), Jt. Assem. Suppl., Abstract SA43C-06. (Oral Talk)
Yizengaw, E. (2006), Space Weather effect on our communication and navigation system, ICTP-COST-USNSWP-CAWSES-INAF-INFN International Advanced School on Space Weather, Trieste, Italy, 2 - 19 May 2006. (Oral Talk)
Yizengaw, E., M. B. Moldwin, P. L. Dyson, and B. J. Fraser, (2006), Imaging Magnetosphere-Ionosphere Coupling Using Tomographic Reconstruction Technique, Yosemite Workshop, 7 - 10 February.
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Yizengaw, E., M. B. Moldwin, A. J. Mannucci, and A. Komjathy, (2005), Unusual topside ionospheric density response to the November 2003 superstorm, Eos Trans. AGU, 86(52), Fall meeting, Suupl., Abstract SA21A-0268. ADS Abstract
Mann, I. R., D. K. Milling, M. B. Moldwin, Yizengaw, E., (2005), Ground-based Magnetometer Array Science for IHY: Opportunities for an Array in Africa within the UNBSS Developing Nations Small Instrument Program, Eos Trans. AGU, 86(52), Fall meeting, Suupl., Abstract SM33D-01. ADS Abstract
Yizengaw, E., M. B. Moldwin, H. Wei, D. Galvan, L. Mandrake, A. Mannucci, and X. Pi, The correlation between mid-latitude trough and the plasmapause position: First time global comparison, IAGA 2005 Scientific Assembly, Toulouse, France, 18 - 29 July 2005.
Moldwin, M. B. E. Yizengaw, and H. Wei, Plasmasphere dynamics during storms and its role in modulating the ring current and radiation belts, IAGA 2005 Scientific Assembly (invited paper), Toulouse, France, 18 - 29 July 2005.
Yizengaw, E. and M. B. Moldwin, The altitude extension of the mid-latitude trough and its correlation with plasmapause position, Joint GEM/CEDAR workshop, Santa Fe, New Mexico, 25 June - 1 July 2005. (Oral Talk)
H. Wei, E. Yizengaw, D. Galvan, and M. B. Moldwin, The correlation of the mid-latitude trough with the plasmapause: GPS TEC and IMAGE EUV, GEM/CEDAR Joint meeting, Santa Fe, New Mexico, 26 June - 1 July 2005.
Hsu,T-S, E. Yizengaw, M. B. Moldwin, and R. L. McPherron, An Investigation of Total Electron Content (TEC) Perturbations during Sawtooth Events, GEM/CEDAR Joint meeting, Santa Fe, New Mexico, 25 June - 1 July 2005.
Yizengaw, E., H. Wei, M. B. Moldwin, D. Galvan, L. Mandrake, A. Mannucci, X. Pi, and B. Sandel (2005), The Correlation Between Mid-latitude Trough and the Plasmapause, Eos Trans. AGU, 86(18), Jt. Assem., Suupl., Abstract SA41A-08. ADS Abstract
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Yizengaw, E., M. B. Moldwin, P. L. Dyson, and T. J. Immel, (2004), The southern hemisphere ionosphere and plasmasphere response to the interplanetary shock event of 29 - 31 October 2003, Eos Trans. AGU, 85(47), Fall Meeting, Suupl., Abstract SA21B-0354. ADS Abstract
Yizengaw, E., P. L. Dyson, and E. A. Essex, Tomographic observations of the topside ionospheric density distributions using the GPS receiver on FedSat, COSPAR Scientific Assembly, Paris, France, 18-25 July 2004. (Oral Talk) ADS Abstract
Yizengaw, E., P. L. Dyson, and E. A. Essex, Tomographic reconstruction of the ionosphere and plasmasphere using ground and/or space based GPS receivers, Geospace Environment Modelling (GEM) international conference, Snowmass, Aspen, Colorado, USA, June 2004.
Yizengaw, E., P. L. Dyson, and E. A. Essex, Tomographic reconstruction of the ionosphere using ground-based GPS data in the Australian region, Workshop on Applications of Radio Science (WARS), Hobart, Australia, February 2004. (Won the best student presentation prize of the conference). PPS
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Yizengaw, E., and E. A. Essex, Multi instrument observations of ionospheric electron density, CRC for Satellite System conference, Adelaide, Australia, February 2003. (Oral Talk)
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Essex, E. A., and E. Yizengaw (2002), Southern Hemisphere Total Electron Content of The Ionosphere During The Geomagnetic Storm of 13-16 July 2000, EGS XXVII General Assembly, Nice, 21-26 April 2002, abstract #179 . ADS Abstract
Yizengaw, E., and E. A. Essex, Storm Time Seasonal Variation of TEC on the Southern Hemisphere Mid-Latitude Regions Using Signals from Gps Satellite, 4'th Oersted International Science Team Conference, Copenhagen, Denmark, September, 2002.
Essex, E. A., and E. Yizengaw, Seasonal Effects of the Storm Time Variations of the Latitudinal Distribution of Ionospheric Total Electron Content in Equatorial and Southern Hemisphere Mid and High Latitude Regions, European Geophysical Society, XXVII General Assembly, Nice, France, April 2002.
Yizengaw, E., and E. A. Essex, Total electron content of the ionosphere during the geomagnetic storm for the 13-16 July 2000, CRC for Satellite System conference, Canberra, Australia, February 2002. (Oral Talk)
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Yizengaw, E., and E. A. Essex, Occultation studies of the ionosphere using global positioning system (GPS), CRC for Satellite System workshop, Newcastle, Australia, February 2001. (Oral Talk)
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Yizengaw, E., Imaging the Ionosphere and Plasmasphere Using Tomographic Reconstruction Technique, IGPP, UCLA, 22 October 2004. PPS
Yizengaw, E., Tomographic reconstruction of the ionosphere using ground and/or space based GPS receivers, Space Physics Department, La Trobe University, March 2004.
Yizengaw, E., and E. A. Essex, Imaging the ionosphere, Space Physics Department, La Trobe University, March 2003.
Yizengaw, E., and E. A. Essex, Storm time seasonal variation of TEC in the Southern Hemisphere using signals from GPS satellites, Space Physics Department, La Trobe University, July 2002.
Yizengaw, E., and E. A. Essex, TEC of the ionosphere during the geomagnetic storm on April 7, 2000, Space Physics Department, La Trobe University, June 2001.
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Last update 10 Feburary 2008 |
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