Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Afraimovich, E. L."'
We obtained the first experimental evidence for the magnetohydrodynamic (MHD) nature of ionospheric medium-scale travelling wave packets (MSTWP). We used data on total electron content (TEC) measurements obtained at the dense Japanese network GPS/GEO
Externí odkaz:
http://arxiv.org/abs/0904.3016
Autor:
Afraimovich, E. L.
During strong magnetic storms, the errors of determination of the range, frequency Doppler shift and angles of arrival of transionospheric radio signals exceeds the one for magnetically quiet days by one order of magnitude as a minimum. This can be t
Externí odkaz:
http://arxiv.org/abs/physics/0212046
Autor:
Afraimovich, E. L., Astafieva, E. I.
We investigate an unusual class of medium-scale traveling ionospheric disturbances (MS TIDs) of the nonwave type, isolated ionospheric disturbances (IIDs) that manifest themselves in total electron content (TEC) variations in the form of single aperi
Externí odkaz:
http://arxiv.org/abs/physics/0212021
We identified a new class of mid-latitude medium-scale traveling ionospheric disturbances (MS TIDs), viz. traveling wave packets (TWPs) of total electron content (TEC) disturbances. For the first time, the morphology of TWPs is presented for 105 days
Externí odkaz:
http://arxiv.org/abs/physics/0211046
The GPS performance is impaired in conditions of geomagnetic distrubances. The rms error of positioning accuracy increases in the case where two-frequency GPS receivers of three main types (ASHTECH, TRIMBLE, and AOA) are in operation. For ASHTECH rec
Externí odkaz:
http://arxiv.org/abs/physics/0211015
Using the international ground-based network of two-frequency receivers of the GPS navigation system provides a means of carrying out a global, continuous and fully-computerized monitoring of phase fluctuations of signals from satellite-borne radio e
Externí odkaz:
http://arxiv.org/abs/physics/0210048
This paper proposes a new method for estimating the contribution from different ionospheric regions to the response of total electron content variations to the solar flare which uses the effect of partial shadowing of the atmosphere by the terrestria
Externí odkaz:
http://arxiv.org/abs/physics/0202072
Using the geomagnetic storm of July 15, 2000 as an example, we investigated the dependence of GPS navigation system performance on the nightside at mid-latitudes on the level of geomagnetic disturbance. The investigation was based on the data from th
Externí odkaz:
http://arxiv.org/abs/physics/0202052
Autor:
Afraimovich, E. L., Lesyuta, O. S.
We discuss the measurements of the main parameters of the ionospheric response to the total solar eclipse of June 21, 2001. This study is based on using the data from three stations of the global GPS network located in the area of the totality band i
Externí odkaz:
http://arxiv.org/abs/physics/0201047
Results derived from analysing the ionosphere response to faint and bright solar flares are presented. The analysis used technology of a global detection of ionospheric effects from solar flares as developed by the authors, on the basis of phase meas
Externí odkaz:
http://arxiv.org/abs/physics/0110063