Results 101 to 110 of about 1,563 (166)

Radar and optical studies of small scale features in the Aurora: the association of optical signatures with Naturally Enhanced Ion Acoustic Lines (NEIALs)

, 2014
Naturally Enhanced Ion Acoustic Lines (NEIALs) are enhancements (often over an order of magnitude in power) observed in ion line spectra in incoherent scatter radar data.
Goodbody, Brendan
core  

Perpendicular Electrical Conductivity in the Topside Ionosphere Derived from Swarm Measurements

Remote Sensing
The study of the physical properties of the topside ionosphere is fundamental to investigating the energy balance of the ionosphere and developing accurate models to predict relevant phenomena, which are often at the root of Space Weather effects in the ...
Fabio Giannattasio, Alessio Pignalberi, Roberta Tozzi, Paola De Michelis, Simone Mestici, Giuseppe Consolini, Igino Coco, Michael Pezzopane   +7 more
doaj   +1 more source

Ion distribution and temperature in the topside ionosphere obtained from the Alouette satellite

, 1965
Ion distribution and temperature of topside ionosphere from electron density measurements by Alouette ...
Watt, T. M.
core  

Improving the NeQuick topside representation by means of Swarm satellites data

, 2018
The ionospheric topside representation made by the NeQuick model is improved by correcting the H0 parameter used by the model to calculate the topside plasma scale height.
michael pezzopane, alessio pignalberi
core  

Magnetosphere–Ionosphere Conjugate Harang Discontinuity and Sub-Auroral Polarization Streams (SAPS) Phenomena Observed by Multipoint Satellites

Atmosphere
It is well understood that near midnight, the Harang Discontinuity separates the auroral duskside eastward electrojet (EEJ) and dawnside westward electrojet (WEJ) and associated plasma flows driven by enhanced magnetospheric convections via Magnetosphere–
Ildiko Horvath, Brian C. Lovell
doaj   +1 more source

H2 Chemistry and Protonation in the Dayside Venusian Upper Atmosphere

The Astronomical Journal
Although H _2 is present in low concentrations, it critically controls the structure and composition of planetary upper atmospheres through protonation under solar extreme-ultraviolet and soft X-ray irradiation. Recent studies highlight the importance of
Shiqi Wu, Xiaoshu Wu, Yanxing Liu, Jun Cui   +3 more
doaj   +1 more source

Ion and electron temperatures in the topside ionosphere

, 1979
Experimental and theoretical ion and electron temperatures in the topside ionosphere were investigated. Experimental results came from an analysis of incoherent scatter data taken at Arecibo, Puerto Rico.
Munninghoff, D. E.
core  

Study of the Behaviour of the Topside Ionosphere during Sunrise from Alouette-I & Alouette-II Satellite Data [PDF]

, 1972
154-157The electron density profiles obtained by the Alouette-I and Alouette-II topside sounders are used to study the sunrise behaviour of the topside ionosphere.
Reddy, B. M., Lakshmi, D. R.
core  

Yearly variations in the low-latitude topside ionosphere

, 1999
International audienceObservations made by the Hinotori satellite have been analysed to determine the yearly variations of the electron density and electron temperature in the low-latitude topside ionosphere.
K. -i. Oyama, Bailey, G.J., G. J. Bailey, Oyama, K.-I., Su, Y. Z., Y. Z. Su   +5 more
core  

Heat Exchange Processes in the Topside Ionosphere at Low to Middle Latitudes

, 2018
Plasma temperatures in the ionosphere are fundamental indicators of the heat balance between the charged and neutral species and are associated with both the dynamics and structure of the upper atmosphere. At low and middle latitudes the temperatures are
Hsu, Chih Te
core