Deutsch
 
Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Observations of a Pc5 global (cavity/waveguide) mode outside the plasmasphere by THEMIS

Urheber*innen

Hartinger,  M.
External Organizations;

Angelopoulos,  V.
External Organizations;

Moldwin,  M. B.
External Organizations;

Nishimura,  Y.
External Organizations;

Turner,  D. L.
External Organizations;

Glassmeier,  K.-H.
External Organizations;

Kivelson,  M. G.
External Organizations;

/persons/resource/jmat

Matzka,  J.
0 Pre-GFZ, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/cstolle

Stolle,  Claudia
Deutsches GeoForschungsZentrum;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in GFZpublic verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Hartinger, M., Angelopoulos, V., Moldwin, M. B., Nishimura, Y., Turner, D. L., Glassmeier, K.-H., Kivelson, M. G., Matzka, J., Stolle, C. (2012): Observations of a Pc5 global (cavity/waveguide) mode outside the plasmasphere by THEMIS. - Journal of Geophysical Research, 117, A6.
https://doi.org/10.1029/2011JA017266


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_247508
Zusammenfassung
Standing fast mode waves known as global modes, or cavity/waveguide modes, have been extensively studied as a potential driver of monochromatic shear Alfvén waves in the Earth's magnetosphere via the field line resonance (FLR) mechanism. However, their existence outside of the plasmasphere remains controversial. We present here a global mode observation outside the plasmasphere, using simultaneous multispacecraft observations in the solar wind, the magnetosheath and the outer magnetosphere, as well as ground magnetometer data. Broadband solar wind dynamic pressure fluctuations are the most likely drivers of the Pc5 frequency range (2–7 mHz) global mode. The global mode transfers energy toward the plasmapause, where it drives localized shear Alfvén wave activity in the Pc5 frequency range. Global modes are thus a viable mechanism for converting broadband energy sources to monochromatic, radially localized shear Alfvén waves in the Pc5 frequency range.