Lower Ionosphere
Remote sensing and modeling of energetic electron precipitation into the lower ionosphere using VLF/LF radio waves and field aligned current data
... cipitation activity (Cummer et al., 1996, 1998). During the last years we have developed a modeling scheme that al- lows to assess ionospheric forcing parameters from VLF/LF amplitude and phase recordings of distant ...
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Meteorological effects in the lower ionosphere as based on VLF/LF signal observations
... the lower D region of the ionosphere can be more influenced by the processes in the troposphere, so the effects of TCs in the lower ionosphere have been studied by in situ mode such as rocket ...
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Baumann, Carsten (2016): Influences of meteoric aerosol particles on the lower ionosphere. Dissertation, LMU München: Fakultät für Physik
... (TEE) from MSPs, we have used an atmospheric secondary differential electron flux mea- sured at 105 km altitude under auroral conditions (see Fig. 3.5, data collected by Doering, published within Fig. 4 of Pfister, ...
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Investigation of electron density profile in the lower ionosphere by SRP 4 rocket experiment
... Figure 4 shows received strength of waves at (a) 257 kHz, (b) 660 kHz and (c) 820 kHz that were transmitted from navigation and broadcast stations near Fairbanks, Alaska during the ascent. The vertical axis indicates the ...
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Remote sensing and modeling of lightning caused long recovery events within the lower ionosphere using VLF/LF radio wave propagation
... the lower ionosphere is de- ...of lower ionosphere EMP heating by strong – but not necessarily extremely strong – return strokes of both ...
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Influence of Luminous Structure on the lower Ionosphere as derived from the responses of Lightning activity
... Elves are expanding disks of optical emissions usually occur in the lower layer of the ionosphere (90-100km) with a large peak current of the order of 60kA and CGs of both negative and positive polarity. ...
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Structural changes in lower ionosphere wind trends at midlatitudes
... Time series of middle atmosphere parameters have been proposed to be useful for climate trend detection (e.g. Thomas, 1996) due to comparatively large signals, and owing to the fact that the middle and upper atmosphere ...
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Electron densities in the lower ionosphere
... tectable limit Nicolet, 1958a, but tion of 1o-10 imated that a tional concan.. was sufficient Th.[r] ...
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Responses of Radon Anomaly Prior to Earthquake: A Short Review
... and ionosphere through some probable channels, ...the ionosphere thereby modifying the ionosphere ...the lower ionosphere initiating direct heating, liberation of exo-electrons, and/or ...
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Lithosphere-atmosphere-ionosphere coupling as governing mechanism for preseismic short-term events in atmosphere and ionosphere
... Abstract. We present a general concept of mechanisms of preseismic phenomena in the atmosphere and ionosphere. After short review of observational results we conclude: 1. Upward migration of fluid substrate matter ...
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Aeronomic effects of the solar flares in the topside ionosphere
... side ionosphere agrees well to the presented above TEC variations obtained as a result of processing of GPS sig- nals and in observations at the Arecibo incoherent scatter radar Thome and Wagner ...the ...
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The Graz seismo-electromagnetic VLF facility
... For terrestrial VLF wave propagation, the cavity formed by (i) the Earth surface, both over land and sea, and in partic- ular (ii) the lower ionosphere (Friedrich and Rapp, 2009), is crucial for variations ...
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Detection of ionospheric perturbations associated with Japanese earthquakes on the basis of reception of LF transmitter signals on the satellite DEMETER
... the lower ionosphere prior to an EQ (such as the lowering of the lower ionosphere as suggested by Hayakawa et ...the ionosphere leads to modification of the natural ionospheric ...
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IRI the International Standard for the Ionosphere
... are found at very low and very high temperatures. This may be due to data analysis problems both techniques encounter at the very low electron densities in the topside ionosphere. In Fig. 4 we compare different ...
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Complex network description of the ionosphere
... It has been reported that real complex networks often ex- hibit scale-free properties (Barabási and Albert, 1999). This means their degree distribution follows a power law, at least asymptotically; that is, the number of ...
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Phase scintillations at the polar ionosphere
... The ionosphere is an ionized region of the upper atmosphere produced by solar radiation and high-energy particles from the ...The ionosphere can be categorized into three regions based on the latitude; ...
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High midlatitude ionosphere response to major stratospheric warming
... This study investigates the impact of dynamical processes in the neutral atmosphere on the high-midlatitude ionosphere during two sudden stratospheric warming (SSW) events. For this purpose, the reanalysis ...
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Lightning induced heating of the ionosphere
... Analyzer (RPA) payload experiment flown aboard the Indian SROSS-C2 satellite for the solar minimum year 1995-96. The data on thunderstorm activity has been obtained from the India Meteorological Department (IMD). The ...
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Fine Structure in the Ionosphere, Bruce Fritz
... An important example of an ionospheric feedback mechanism that can generate fine- scale structure is the Ionospheric Feedback Instability (IFI) [Atkinson, 1970] that describes active feedback of the ionosphere in ...
202
science and langmuir probe experiment in the ionosphere of mars
... A new concept of Langmuir probe system is has been developed for the find out the plasma parameters of MARS ionosphere. It is making it possible to derive the electron density, ion density with high resolution. ...
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