The MAARBLE project: investigating the properties of electromagnetic waves and their influence on the dynamic evolution of the Van Allen belts

0473471 - ÚFA 2017 FR eng A - Abstrakt
Daglis, I. A. - Bourdarie, S. - Horne, R. B. - Khotyaintsev, Y. - Mann, I. R. - Santolík, Ondřej - Turner, D. - Balasis, G. - Grison, Benjamin
The MAARBLE project: investigating the properties of electromagnetic waves and their influence on the dynamic evolution of the Van Allen belts.
4th Cluster and THEMIS workshop: Book of abstracts. Paris: European Space Agency (ESA), 2017. s. 25-26.
[Cluster-THEMIS Workshop /4./. 07.11.2016-12.11.2016, Palm Springs]
Institucionální podpora: RVO:68378289
Klíčová slova: magnetosphere * radiation belt * Van Allen belts * MAARBLE project
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
http://themis.igpp.ucla.edu/events/CLUSTER_THEMIS_2016/Workshop_abstracts_v3.pdf

Solar variability drives, among other physical processes, the growth of lowfrequency
electromagnetic waves in the terrestrial magnetosphere. The resulting
wave-particle interactions in the inner magnetosphere play a critical role in
radiation belt dynamics. The MAARBLE (Monitoring, Analyzing and Assessing
Radiation Belt Loss and Energization) project, which was implemented with support
26 from the European Community's Seventh Framework Programme, investigated in
detail the properties of these waves and the particular the ways in which these
waves may influence the energization and loss of radiation belt electrons. The
MAARBLE project employed multi-spacecraft monitoring of the geospace
environment, complemented by ground-based monitoring, in order to analyze and
assess the physical mechanisms leading to radiation belt particle energisation and
loss. MAARBLE created a database based on measurements from the Cluster,
THEMIS and CHAMP missions and from the CARISMA and IMAGE ground
magnetometer networks and containing properties of ULF and VLF waves. The
database is available to the scientific community through the Cluster Science
Archive as auxiliary content. Based on the wave database, statistical models of the
wave activity dependent on the level of geomagnetic activity, solar wind forcing, and
magnetospheric region have also been developed. Multi-spacecraft particle
measurements have been incorporated into data assimilation tools, leading to a
more accurate estimate of the state of the radiation belts. The synergy of wave and
particle observations at the core of MAARBLE research studies of radiation belt
dynamics enabled significant advances in understanding the nature of the physical
processes responsible. In particular new understanding of the nature of ULF
interactions, both coherent and diffusive, and better representations of multiple
plasma wave-particle interactions lead to improved coupled models.
Trvalý link: http://hdl.handle.net/11104/0270584