Mostrar el registro sencillo del ítem Oppenheim, M. M. Dimant, Y. S. 2018-11-09T15:25:40Z 2018-11-09T15:25:40Z 2013-02-27
dc.identifier.citation Oppenheim, M. M., & Dimant, Y. S. (2013). Kinetic simulations of 3‐D Farley‐Buneman turbulence and anomalous electron heating.==$Journal of Geophysical Research: Space Physics, 118$==(3), 1306-1318. es_ES
dc.description.abstract Electric fields map from the magnetosphere to the E region ionosphere where they drive the intense currents of the auroral electrojet. Particularly during geomagnetic storms and substorms, these currents become sufficiently intense to develop Farley‐Buneman (FB) streaming instabilities and become turbulent. This leads to anomalous electron heating which can raise the electron temperature from 300 K to as much as 4000 K and, also, modifies auroral conductivities. This paper describes the first fully kinetic 3‐D simulations of electric field‐driven turbulence in the electrojet and compares the results with 2‐D simulations and observations. These simulations show that 3‐D turbulence can dramatically elevate electron temperatures, enough to explain the observed heating. They also show the saturated amplitude of the waves; coupling between linearly growing modes and damped modes; the propagation of the dominant modes at phase velocities near the acoustic velocity, slower than in 2‐D simulations; and anomalous cross‐field electron transport, leading to a greatly increased E region Pedersen conductivity. These simulations provide information useful in accurately modeling FB turbulence and represent significant progress in understanding the electrojet. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher American Geophysical Union es_ES
dc.relation.ispartof urn:issn:2169-9380
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject Ionosphere es_ES
dc.subject Electrojet es_ES
dc.subject Turbulence es_ES
dc.subject Farley‐Buneman es_ES
dc.subject Simulation es_ES
dc.subject Auroral es_ES
dc.title Kinetic simulations of 3‐D Farley‐Buneman turbulence and anomalous electron heating es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde es_ES
dc.identifier.journal Journal of Geophysical Research: Space Physics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi es_ES




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