@InProceedings{ErickssonSouzCass:2018:SoAmMo,
               author = "Ericksson, Stefan and Souza, Vitor Moura Cardoso e Silva and 
                         Cassak, Paul",
          affiliation = "{Laboratory for Atmospheric and Space Physics} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {West Virginia 
                         University}",
                title = "South America monsoon system and features simulated by the Eta 
                         regional model",
                 year = "2018",
         organization = "AGU Fall Meeting",
             keywords = "Tripolar BM perturbations across dayside magnetopause exhausts – 
                         comparing THEMIS multi-spacecraft observations and PIC 
                         simulations.",
             abstract = "THEMIS occasionally show evidence of tripolar perturbations of the 
                         out-of-plane (guide) magnetic field across reconnection exhausts 
                         at the dayside magnetopause. This type of guide field signature 
                         may indicate a presence of magnetic flux ropes that form between 
                         two active reconnection X-lines. We examined the 3-s cadence of 
                         THEMIS ion velocity distributions in the field 
                         parallel-perpendicular plane across these types of reconnection 
                         exhausts. The survey resulted in a clear evidence of two 
                         counter-streaming magnetosheath ion populations in at least 30% of 
                         tripolar events. The same type of bi-streaming ions were observed 
                         when THEMIS A,D,E confirmed a case of converging ion exhausts at 
                         the dayside magnetopause. A particle-in-cell (PIC) simulation for 
                         asymmetric magnetopause conditions confirm the presence of two 
                         counter-streaming ion populations within a magnetic island that 
                         formed between two X-lines. The time-dependent ion particle 
                         trajectories clearly show how the two ion populations originated 
                         in the upstream magnetosheath and reached the same region of two 
                         converging exhausts from the two adjacent reconnection X-lines.",
  conference-location = "Washington, D. C.",
      conference-year = "10-14 dec.",
             language = "en",
        urlaccessdate = "27 abr. 2024"
}