Resolute Bay CADI ionosonde drifts, PolarDARN HF velocities, and cross polar cap potential
نویسندگان
چکیده
منابع مشابه
Polar cap index comparisons with AMIE cross polar cap potential, electric field, and polar cap area
[1] The polar cap index (PCI) has been shown to be quite useful as an index of the electrodynamic processes within the high-latitude ionosphere. Here we use between 150 and 180 magnetometers to model the high-latitude electrodynamics with the assimilative mapping of ionospheric electrodynamics (AMIE) technique for all of 1997–2001. We compare AMIE calculations of the cross polar cap potential (...
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Variability in the geomagnetic polar cap neutral wind from the interaction between gravity wave momentum and near the mesopause above Resolute Bay, Canada (74.9øN, thermal tides, may be an efficient mechanism at polar latitudes. 94.9øW) has been observed by a Fabry-Perot Interferometer, Another suggestion is the ducting of mid latitude tidal oscillations using a circle-to-line detection techniq...
متن کاملOn the observed variability of the cross–polar cap potential
[1] A study of the cross–polar cap potential estimated by the HF Super Dual Auroral Radar Network (SuperDARN) during periods of steady interplanetary magnetic field (IMF) and solar wind velocity is presented. The potential estimates were examined as time series along with time series of the IMF and solar wind. In addition, the data were examined statistically to obtain a best fit linear express...
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Nowcasts of the surface velocity field in Monterey Bay are made for the period August 1–9, 1994, using HF radar observations blended with results from a primitive equation model. A spectral method called normal mode analysis was used. Objective spatial and temporal filtering were performed, and stream function, velocity potential, relative vorticity, and horizontal divergence were calculated ov...
متن کاملPolar cap potential saturation: Observations, theory, and modeling
The polar cap potential ðFPCÞ has long been considered an indicator for the amount of energy flowing into and through the magnetosphere–ionosphere (M–I) system. Studies have shown that FPC reaches an upper limit, or saturates, during geomagnetic storms where the solar wind electric field becomes increasingly large. Numerous observational, theoretical, and modeling studies of FPC have seemingly ...
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ژورنال
عنوان ژورنال: Radio Science
سال: 2012
ISSN: 0048-6604
DOI: 10.1029/2011rs004947