On the influence of neutral turbulence on ambipolar diffusivities deduced from meteor trail expansion

C. M. Hall (1)

1 TGO - Tromsø Geophysical Observatory

By measuring fading times of radar echoes from underdense meteor trails, it is possible to deduce the ambipolar diffusivities of the ions responsible for these radar echoes. It could be anticipated that these diffusivities increase monotonically with height akin to neutral viscosity. In practice, this is not always the case. Here, we investigate the capability of neutral turbulence to affect the meteor trail diffusion rate.

Domaines: Océan, Atmosphère; Sciences de la Terre

C. M. Hall. On the influence of neutral turbulence on ambipolar diffusivities deduced from meteor trail expansion. Annales Geophysicae, 2002, 20 (11), pp.1857-1862. ⟨hal-00317399⟩