12-20 July 2017
BEXCO
Asia/Seoul timezone
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Contribution

BEXCO - Room F(201/202/203/204)

[SH094] Analysis of cosmic ray precursors observed by the Global Muon Detector Network (GMDN) between 2013-2016.

Speakers

  • Rafael R. S. DE MENDONCA

Primary authors

  • Rafael R. S. DE MENDONCA (Space Geophysics Division, National Institute for Space Research, São José dos Campos, Brazil)

Co-authors

  • Marc L. DULDIG (School of Physical Sciences, University of Tasmania, Australia)
  • John E. HUMBLE (School of Physical Sciences, University of Tasmania, Australia)
  • Munetoshi TOKUMARU (Institute for Space-Earth Environmental Research, Nagoya University, Japan)
  • Madan M. SHARMA (Physics Department, Kuwait University, Kuwait)
  • Hala AL JASSAR (Physics Department, Kuwait University, Kuwait)
  • Marlos ROCKENBACH (Space Geophysics Division, National Institute for Space Research, Brazil)
  • Nelson J. SCHUCH (Southern Regional Space Research Center, Brazil)
  • Chihiro KATO (Physics Department, Shinshu University, Japan)
  • Masayoshi KOZAI (Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Japan)
  • Takao KUWABARA (Graduate School of Science, Chiba University, Japan)
  • Kazuoki MUNAKATA (Physics Department, Shinshu University, Japan)
  • Ana C. S. PINTO (Space Geophysics Division, National Institute for Space Research, Brazil)
  • Alisson DAL LAGO (Space Geophysics Division, National Institute for Space Research, Brazil)
  • Ezequiel ECHER (Space Geophysics Division, National Institute for Space Research, Brazil)
  • Carlos R. BRAGA (Space Geophysics Division, National Institute for Space Research, Brazil)
  • Paul A. EVENSON (Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, USA)
  • Ismail SABBAH (Department of Natural Sciences, College of Health Sciences, Public Authority for Applied Education and Training, Kuwait)

Description

The cosmic ray flux arriving at Earth's surface can present local decreases or increases prior to the arrival of an interplanetary structure in our planet vicinity. In this work, we study these precursory variations using a methodology that allows for continuous precursor monitoring in the Global Muon Detector Network (GMDN) data. Different from case studies done in the past where precursors were searched only in periods where they were expected, this method allows searches for precursory variations in all period of data independently of the interplanetary medium conditions. In this work, we apply this methodology to cosmic ray data recorded between 2013-2016 and analyze the relation between the probable precursors found and the space weather conditions in the period around them.