![]() ![]() The equatorward motion of the plasmapause projected in the ionosphere is related to the equatorward edge motion of the auroral oval that goes to lower latitudes during storms due to the geomagnetic perturbation, like the low altitude plasmapause and the outer radiation belt. Moreover, the position of the plasmapause projected in the ionosphere is compared with the ionospheric convection boundary. The inward motion of the outer radiation belt associated with sudden flux enhancements of energetic electrons can indeed be directly related to the plasmapause erosion during geomagnetic storms, suggesting possible links. ![]() Using the Van Allen Probes and other satellite observations like PROBA-V, we investigate the links that can exist with the radiation belt boundaries. In the present work, we first compare the positions of the plasmapause measured by the NASA Van Allen Probes in 2015 with those of the Space Weather Integrated Forecasting Framework plasmasphere model (SPM). This can influence the other regions of the magnetosphere, including due to different waves circulating inside and outside the plasmasphere. The plasmapause marks the limit of the plasmasphere and is characterized by a sudden change in plasma density. 7SuperDARN Laboratory, Blacksburg, VA, United States.6University of Michigan-Ann Arbor, Ann Arbor, MI, United States.5Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States.4UPS, CEA, LMCE, Bruyères-le-Châtel, France.2Center for Space Radiations (CSR) and Georges Lemaître Centre for Earth and Climate Research (TECLIM), Earth and Life Institute (ELI), Université Catholique de Louvain (UCLouvain), Louvain-La-Neuve, Belgium. ![]() 1Solar Terrestrial Center of Excellence, Space Physics, Royal Belgian Institute for Space Aeronomy, Brussels, Belgium. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2022
Categories |