Recent activities of IAG working group “Ionosphere Prediction” [PDF]
, 2018 Ionospheric disturbances pose, for instance, an increasing risk on economy, national security, satellite and airline operations, communications networks and the navigation systems.
Berdermann, Jens +8 more
core
Limb sounders tracking topographic gravity wave activity from the stratosphere to the ionosphere around midlatitude Andes [PDF]
, 2015 Several studies have shown that the surroundings of the highest Andes mountains at midlatitudes in the Southern Hemisphere exhibit gravity waves (GWs) generated by diverse sources which may traverse the troposphere and then penetrate the upper layers if ...
Alexander +41 more
core +1 more source
Magnetic location of a possible earthquake epicentre area: a mathematical model
Geomatics, Natural Hazards & Risk, 2016 We study one of the problems of the theory of seismo-electromagnetic methods of earthquake prediction, namely, the physical nature of magnetic location of a future epicentre.
O.B. Novik +3 more
doaj +1 more source
Daytime F2-layer negative storm effect: what is the difference between storm-induced and Q-disturbance events? [PDF]
Annales Geophysicae, 2007 Negative F2-layer storms related to geomagnetic activity and quiet-time disturbances (Q-disturbances) belong to different classes of events and exhibit different morphology.
A. V. Mikhailov +2 more
doaj +1 more source
Magnetospheric convection from Cluster EDI measurements compared with the ground-based ionospheric convection model IZMEM [PDF]
Annales Geophysicae, 2009 Cluster/EDI electron drift observations above the Northern and Southern polar cap areas for more than seven and a half years (2001–2008) have been used to derive a statistical model of the high-latitude electric potential distribution for summer ...
M. Förster +6 more
doaj +1 more source
Inter-frequency Bias Estimation for the GPS Monitor Station Network [PDF]
, 2008 The inter-frequency bias (IFB) is present in all dual frequency combinations of GPS pseudorange and carrier phase observables. It is caused by the path dependent signal delays in both the satellite and receiver.
Bishop, Robert H +3 more
core +1 more source
Influence of ionospheric perturbations in GPS time and frequency transfer [PDF]
, 2009 The stability of GPS time and frequency transfer is limited by the fact that GPS signals travel through the ionosphere. In high precision geodetic time transfer (i.e. based on precise modeling of code and carrier phase GPS data), the so-called ionosphere-
Bassiri +14 more
core +1 more source
Magnetosphere–Ionosphere Coupling
, 2021 The process of magnetosphere-ionosphere coupling involves the transport of vast quantities of energy and momentum between a magnetized planet and its space environment, or magnetosphere. This transport involves extended, global sheets of electrical current, which flows along magnetic field lines.
Achilleos, N. A. +2 more
openaire +3 more sources
Dependence of the F2-layer critical frequency median at midlatitudes on geomagnetic activity
Solar-Terrestrial Physics, 2017 We put forward a method of separating the geomagnetic activity contribution to the F2-layer critical frequency median, foF2med, at middle latitudes. It is based on the analysis of foF2, which is the ratio foF2med/foF2q in percent, where foF2q is the F2 ...
Deminov M.G. +3 more
doaj +1 more source
LONG-TERM TREND OF THE IONOSPHERIC E-LAYER RESPONSE TO SOLAR FLARES
Solar-Terrestrial Physics, 2022 Using data from ground-based vertical sounding of the ionosphere (VS) at the station Moscow and five Japanese stations for the period from 1969 to 2015, we have examined the long-term response of the E layer to solar X-ray flares.
G.V. Givishvili, L.N. Leshchenko
doaj +1 more source