Skip to content
NIGGG-BAS DOI Service
  • National Institute of Geophysics, Geodesy and Geography – Bulgarian Academy of Sciences
Menu

2019, Vol. 42

  1. Home>
  2. Journals>
  3. BGJ>
  4. 2019, Vol. 42
Contents
  1. R.Bojilova– Influence of geomagnetic activity on the ionosphere critical frequencies
  2. E. Oynakov, I. Aleksandrova, D. Solakov – Variations of the parameters of background seismic noise in the stage of preparation of strong earthquakes in the Vrancea regionstorms
  3. N. Dimitrov, P. Danchev, I. Georgiev – Investigation of the impact of atmospheric refraction on precision leveling measurements
  4. N. Miloshev, P. Trifonova– What the National Geo information Center is going to change?
  5. P.Trifonova, M. Metodiev, I Buchvarov– Digital data records in PAG Geomagnetic Observatory available for a 60 years period
  6. M. Metodiev, P. Trifonova– Annual report of the observed geomagnetic activity in Panagyurishte Observatory for 2014
  7. Anton Ivanov, Ivan Georgiev, Nikolay Dimitrov– Analysis of monthly sea level data from Varna tide gauge station
  8. L. Christoskov, L. Dimitrova, D. Solakov, S. Simeonova – Forty years National Operative Telemetric System for seismological information
  9. V. Buchakchiev, E. Oynakov, D. Dragomirov, Y. Milkov – Seismicity on the territory of Bulgaria and the adjacent lands recorded by NOTSSI in 2017
  10. D. Dragomirov, E. Oynakov, V. Buchakchiev, Y. Milkov – Seismicity on the territory of Bulgaria and the adjacent lands recorded by NOTSSI in 2018
National Institute of Geophysics, Geodesy and Geography - Bulgarian Academy of Sciences
Close Menu