List of Publications

  • Tsegaye Kassa, (2020), Modeling the solar, geomagnetic and periodic variations of the ionosphere over Ethiopia, Journal of astronomy and space physics, 10, 28-29.
  •  Teshome Dugassa, John Bosco Habarulema, Melessew Nigussie (2020), Equatorial and low latitude F region response to Co rotating Interaction Region (CIR)-driven storms at different longitude sectors, Advances in Space Research, DOI:10.1016/j.asr.2020.07.003
  • Fasil Tesema, John Meriwether; Baylie Damtie; Melessew Nigussie (2020), Nighttime equatorial 630-nm emission variability over Ethiopia, Journal of advanced space research, DOI:10.1016/j.asr.2020.06.007
  • M. Nigussie, M. B. Moldwin, S. Radicella, E. Yizengaw, Shasha Zou, Bruno Nava (2020), The effect of F-layer zonal neutral wind on the monthly and longitudinal variability of equatorial ionosphere irregularity and drift velocity, JGR, https://doi.org/10.1029/2019JA02767
  • T. Dugassa, J. B. Habarulema, Melessew Nigussie, (2020), Statistical study of geomagnetic storm effects on the occurrence of ionospheric irregularities over equatorial/low-latitude region of Africa from 2001 to 2017, Journal of Atmospheric and Solar-Terrestrial Physics 199:105198DOI: 10.1016/j.jastp.2020.105198.
  • MogeseWassaie Mersha , Elias Lewi , Norbert Jakowski , Volker Wilken,Jens Berdermann , Martin Kriegel , and Baylie Damtie, A Method for Automatic Detection of Plasma Depletions by Using GNSS Measurements, Radio Science, TECHNICAL REPORTS: METHODS, DOI:10.1029/2019RS006978
  • Alene Seyoum, Nat Gopalswamy, Melessew Nigussie, Nigusse Mezgebe (2019), the impact of CMEs on the critical frequncy of F2-layer ionosphere (fof2), proceedings IAU Symposium, No. 356, 2019.
  • Markku Lehtinen, B. Damtie, Mikko Orispää, (2019), Optimal True Time Delay Filter With Application to FPGA Firmware‐Based Phased Array Radar Signal Processing, Radio Science 54(9), DOI:10.1029/2019RS006821
  • Abebe KEBEDE Jaya Prakash RAJU, Diriba KORECHA, Samuel TAKELE, Melessew NIGUSSIE (2019), Drought sensitivity characteristics and relationships between drought indices over Upper Blue Nile basin, JOURNAL OF WATER AND LAND DEVELOPMENT, https://DOI.org/10.2478/jwld-2019-0064
  • Abebe Kebede, U. J. P. Raju, D. Korecha, M. Nigussie, (2019), Developing new drought indices with and without climate signal information over the Upper Blue Nile, Model. Earth Syst. Environ. (2019). https://doi.org/10.1007/s40808-019-00667-y
  • T. Dugassa, J. B. Habarulema, Melessew Nigussie, (2019) Spatial gradient of total electron content (TEC) between two nearby stations as indicator of occurrence of ionospheric irregularityDOI: 10.5194/angeo-2018-131
  • E. Mengistu, M. Moldwin, B. Damtie, M. Nigussie, (2019) The performance of IRI-2016 in the African sector of equatorial ionosphere for different geomagnetic conditions and time scales, Journal of Atmospheric and Solar-Terrestrial Physics 186 DOI: 10.1016/j.jastp.2019.02.006
  • T. Dugassa, J. B. Habarulema, Melessew Nigussie, (2019) Longitudinal variability of occurrence of ionospheric irregularities over the American, African and Indian regions during geomagnetic storms, Advances in Space Research 63(8) DOI:10.1016/j.asr.2019.01.001
  • Ambelu Tebabal, S. Radicella, B. Damtie, Yenca Migoya-Orue, M. Nigussie, B. Nava, (2019) Feed forward neural network based ionospheric model for the East African regionournal of Atmospheric and Solar-Terrestrial Physics 191 DOI:10.1016/j.jastp.2019.05.016
  • Habtamu Marew, Melessew Nigussie, D. Hui, B. Damtie, (2019), A Method of Estimating Equatorial Plasma Vertical Drift Velocity and Its Evaluation Using C/NOFS Observations, Radio Science ,DOI:10.1029/2019RS006800
  • Ephrem Beshir, Melessew Nigussie, Mark Moldwin, (2019),Characteristics of equatorial nighttime spread F - an analysis on season-longitude, solar activity and triggering causes, Advances in Space Research DOI:10.1016/j.asr.2019.09.020
  • Daniel Chekole, Nigussie mezgebe Gidy, Melessew Nigussie (2019), Performance of NeQuick-2, RI-Plas 2017 and GIM models over Ethiopia during varying solar activity periods, Journal of Atmospheric and Solar-Terrestrial Physics 195:105117DOI: 10.1016/j.jastp.2019.105117
  • A. Tebabal, S. M Radicella, M. Nigussie, B. Damtie, B. Nava, E. Yizengaw,  Local TEC modelling and forecasting using neural networks, Journal of Atmospheric and Solar-Terrestrial Physics, DOI:10.1016/j.jastp.2018.03.004, March 2018
  • E. Mengistu, B.Damtie, M. B. Moldwin, M. Nigussie, Comaprison of GPS-TEC measurements with NeQuick2 an IRI model predictions in the low latitude East African region during varying solar activity period (1998 and 2008-2015), January 2018, https://doi.org/10/1016/j.asr.2018.01.009. 
  • Tseagye Kassa. Baylie Damtie, (2017), Ionospheric irregularity over Bahir Dar, Ethiopia during selected geomagnetic storms, Adv. Space Res., March 2017, DOI:10.1016/j.asr.2017.03.036.
  • Tesema, F., R. Mesquita, J. Meriwether, B. Damtie,M. Nigussie, J. Makela, D. Fisher, B. Harding, E. Yizengaw, S. Sanders, (2017) New results on equatorial thermospheric winds and temperatures from Ethiopia, Africa, Ann. Geophy., 35, 333-344.
  • Kriegel, M., Jakowski, N., Berdermann, J., Sato, H., and Mersha, M. W.: Scintillation measurements at Bahir Dar during the high solar activity phase of solar cycle 24, Ann. Geophys., 35, 97-106, doi:10.5194/angeo-35-97-2017, 2017.
  • Tebabal, Ambelu; Damtie, Baylie; Nigussie, Melessew (2016), Temporal solar irradiance variability analysis using neural networks, Proceedings of the International Astronomical Union, DOI: 10.1017/S1743921316000296.
  • M. Nigussie, B. Damtie, E. Yizengaw, S. M. Radicella, (2016), Modeling the East African ionosphere ,Ionospheric Space Weather, Longitudinal and Hemispheric Dependences and Lower Atmosphere Forcing Monograph, John Wiley & Sons. Inc. .
  • Bires, A., L. Roininen, B. Damtie, M. Nigussie, h. Vanhamäki, (2016), Study of TEC Fluctuation via Stochastic Models and Bayesian Inversion, Radio Sci.,51, 11, 1772-1782.
  • Nigussie, M., S. Radicella, B. Damtie, E. Yizengaw, B. Nava, L. Roininen, (2016), Validation of NeQuick TEC data ingestion technique against C/NOFS and EISCAT electron density measurements, Radio Sci., 51, 7, 905–917 DOI: 10.1002/2015RS005930
  • Beshire, E., M. Nigussie (2016), Investigating the effect of geomagnetic storm and equatorial electrojet on equatorial ionospheric irregularity over East African sector, Adv. Space Res. (2016), http://dx.doi.org/10.1016/j.asr.2016.06.037.
  • Tesema, F., B. Damtie, M. Nigussie, (2015), The response of the ionosphere to intense geomagnetic storms in 2012 using GPS-TEC data from East Africa longitudinal sector, J. Atmos. Sol-Terr. Phys.135, 143–151, http://dx.doi.org/10.1016/j.jastp.2015.10.021.
  • Beshir E. & Kassa T. Characterization of Ionospheric Scintillation in a Geomagnetic Equatorial RegionStation. Adv. Space Res., July 2015, Article inpress, http://dx.doi:10.1016/j.asr.2015.07.035.
  • Kassa T., Damtie B., Bires A., Yizengaw E. & Cilliers P. Storm-time characteristics of the equatorial ionization anomaly in the East African sector. Adv. Space Res., April 2015, http://dx.doi:10.1016/j.asr.2015.04.002.
  • Tebabal, A., B. Damtie, M. Nigussie, A. Biress, E. Yizengaw, (2015), Modeling total solar irradiance from PMOD composite using feed-forward neural networks, J. Atmos. Sol-Terr. Phys., 135, 64-71, DOI: 10.1016/j.jastp.2015.10.007
  • Mengistu E. & Kassa T. Temporal characteristics of Equatorial Electrojet and Counter Electrojet over Ethiopian sector. Adv. Space Res., October 2014, http://dx.doi.org/10.1016/j.asr.2014.10.031
  • Kassa T., Damtie B., Bires A., Yizengaw E. & Cilliers P. Spatio-temporal characteristics of the Equatorial Ionization Anomaly (EIA) in the East African region via ionospheric tomography during the year 2012. Adv. Space Res., 55, 184-198, 16- Sep-2014, http://dx.doi.org/10.1016/j.asr.2014.09.001.
  • Nikolai Hlubek, Jens Berdermann, Volker Wilken, Stefan Gewies, Norbert Jakowski, Mogese Wassaie, and Baylie Damtie, Scintillations of the GPS, GLONASS, and Galileo signals at equatorial latitude, J. Space Weather Space Clim. 4 (2014) A22, DOI: 10.1051/swsc/2014020.
  • Chartier A., Kinrade J., Mitchell C., Rose J., Jackson D., Cilliers P., Habarulema J., Katamzi Z., Mckinnell L.,Matamba T., Opperman B., Ssessanga N., Mezgebe N., Tyalimpi V., Franceschi G., Notarpietro R., Romano V.,Scotto C., Dovis F., Avenant E., Wonnacott R., Oyeyemi E., Mahrous A., Mengistu G., Lekamisy H. , Olwendo J.,Sibanda P., Kassa T. & Rabiu B. Ionospheric Imaging in Africa. Radio Sci., 49, doi: 10.1002/2013 RS005238,USA, January 2014.
  • Asmare, Y., T. Kassa, M. Nigussie, (2014), Validation of IRI-2012 TEC model over Ethiopia during solar minimum (2009) and solar maximum (2013) phases, Adv. Space Res., 53, 11, 1582-1594, http://dx.doi.org/10.1016/j.asr.2014.02.017.
  • Nigussie, M., S. Radicella, B. Damtie, B. Nava, E. Yizengaw, K. Groves, (2013) Validation of the NeQuick 2 and IRI-2007 models in East-African equatorial region, J. Atmos. Sol-Terr. Phys., 102, 26–33, http://dx.doi.org/10.1016/j.jastp.2013.04.016.
  • Nigussie, M., S. Radicella, B. Damtie, B. Nava, E. Yizengaw, L. Ciraolo, (2012) TEC ingestion into NeQuick 2 to model the East African equatorial ionosphere, Radio Sci., 47,5, DOI:10.1029/2012RS004981.
  • Lehtinen, M.S., Damtie, B., (2012), Radar baud length optimisation of spatially incoherent time-independent targets, Journal of Atmospheric and Solar-Terrestrial Physics, 2012, DOI: 10.1016/j.jastp.2012.10.010.
  • Ayene, M., Kriek, J., and Damtie, B., Wave-particle duality and uncertainty princi- ple: Phenomenographic categories of description of tertiary physics students depictions, Physical Review Special Topics-Physics Education Research, Physical Review Special Topics - Physics Education Research, 2011. 
  • Yizengaw, E., M. B. Moldwin, A. Mebrahtu, B. Damtie, E. Zesta, C. E. Valladares, and P. H. Doherty, Comparison of storm time equatorial ionospheric electrodynamics in the African and American sectors, J. Atmos. Solar-Terr. Phys., 73(1), 156-163, 2011. 
  • Yizengaw, E., M. B. Moldwin, E. Zesta, B. Damtie, A. Mebrahtu, F. Anad, R. F. Pfaff, and M. Hartinger, Observations of ULF wave related equatorial electrojet fluctuations, J. Geophys. Res., 2010.
  • Damtie, B. and Lehtinen, M. S.: Comparison of the performance of different radar pulse compression techniques in an incoherent scatter radar measurement, Ann. Geophys., 27, 797-806, doi:10.5194/angeo-27-797-2009, 2009.
  • Damtie, B., Lehtinen, MS., Orispa ̈a ̈, M., and Vierinen, J., Mismatched Filtering of Aperiodic Quadriphase Codes, IEEE Transactions on Information Theory, Vol.54 (4), 1742- 1749, 2008. 
  • Damtie, B., Lehtinen, MS., Orispa ̈a ̈, M., and Vierinen, J., Optimal long binary phase code-mismatched filter pairs with applications to ionospheric radars, Bull. Astr. Soc. India, 35, 619623, 2007