Results 31 to 40 of about 5,479 (219)

First E region observations of mesoscale neutral wind interaction with auroral arcs [PDF]

, 2010
We report the first observations of E region neutral wind fields and their interaction with auroral arcs at mesoscale spatial resolution during geomagnetically quiet conditions at Mawson, Antarctica.
Aikio, Anderson, Armstrong, Arnoldy, Aruliah, Aruliah, Aruliah, Aruliah, B. A. Carter, Brekke, Burch, C. Anderson, Chisham, Cierpka, Codrescu, Conde, Conde, Conde, Crickmore, Currie, Davies, del Pozo, Deng, Doe, Doe, Egeland, Friis-Christensen, Fuller-Rowell, Galperin, Greenwald, Heelis, Hernandez, Holmes, Iijima, Iijima, Kamide, Killeen, Killeen, Killeen, Kirkwood, Knudsen, Kosch, Kosch, Kosch, Kosch, Kosch, Kosch, Kosch, Kosch, Larsen, Lewis, M. Conde, M. J. Kosch, Makarevich, McCormac, Millward, Nozawa, Opgenoorth, P. L. Dyson, Price, Price, R. A. D. Fiori, R. A. Makarevich, Rees, Rees, Rees, Ruohoniemi, Schlegel, Schunk, Senior, Senior, Senior, Störmer, T. Davies, Thayer, Tsunoda, Vickrey, Wang, Weimer, Wescott, Zmuda   +80 more
core   +1 more source

On the Upwelling of the F Layer Base and Prediction of Equatorial Plasma Bubble

Geophysical Research Letters, 2023
Prediction of equatorial plasma bubbles (EPBs) continues to be a challenge for the scientific community. We present a novel data analysis approach, employed on the collocated radar and ionosonde observations from Gadanki, providing new experimental ...
A. K. Patra, S. K. Das
doaj   +1 more source

Effects from the June 10, 2021 solar eclipse in the ionosphere over Kharkiv: results from ionosonde measurements

Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2021
Background. Ionospheric effects from solar eclipses (SEs) have been studied for over a century. The studies intensified in the 1960–1970, when rockets, satellites, ionosonde networks, and incoherent scatter radars became actively involved in the ...
L. F. Chernogor, L. I. Mylovanova, Yu. B. Mylovanov, A. M. Tsymbal, Y. Luo   +4 more
doaj   +1 more source

Bayesian statistical ionospheric tomography improved by incorporating ionosonde measurements [PDF]

Atmospheric Measurement Techniques, 2016
We validate two-dimensional ionospheric tomography reconstructions against EISCAT incoherent scatter radar measurements. Our tomography method is based on Bayesian statistical inversion with prior distribution given by its mean and covariance. We employ
J. Norberg, I. I. Virtanen, L. Roininen, J. Vierinen, M. Orispää, K. Kauristie, M. S. Lehtinen   +6 more
doaj   +1 more source

Seasonal Transitions in the Thermosphere Inferred from Ionospheric Observations

Remote Sensing, 2023
Ionospheric observations along with CHAMP/STAR neutral gas density measurements were used to retrieve thermospheric parameters and to check whether the equinox transition season exists separately from the December solstice and June solstice seasons ...
Loredana Perrone, Andrey V. Mikhailov
doaj   +1 more source

Ionospheric drift measurements with ionosondes

Annals of Geophysics, 1998
In the last forty years many attempts have been made to measure ionospheric plasma motions with HF radio sounders, generally specialized ionosondes. Starting in the 1950's, the so-called similar fading and the correlation methods were applied to estimate the velocities in the ionosphere.
D. L. Haines, J. L. Scali, B. W. Reinisch   +2 more
openaire   +3 more sources

Combination of High-Rate Ionosonde Measurements with COSMIC-2 Radio Occultation Observations for Reference Ionosphere Applications

Atmosphere
Knowledge of ionospheric plasma altitudinal distribution is crucial for the effective operation of radio wave propagation, communication, and navigation systems.
Iurii Cherniak, David Altadill, Irina Zakharenkova, Víctor de Paula, Víctor Navas-Portella, Douglas Hunt, Antoni Segarra, Ivan Galkin   +7 more
doaj   +1 more source

Optimal economic and emission dispatch of photovoltaic integrated power system using firefly algorithm [PDF]

, 2020
The main purpose of Economic Load Dispatch (ELD) is to determine the optimal output of generating units to meet the power demand at lowest possible cost and subjected to the operational constraints. Various ELD optimization methods have been developed in
Muhamad Salim, Muhamad Solahuddin
core  

Propagation of gravity waves and spread F in the low-latitude ionosphere over Tucumán, Argentina, by continuous Doppler sounding: first results [PDF]

, 2014
Results of systematic analysis of propagation directions and horizontal velocities of gravity waves (GWs) and spread F structures in low-latitude ionosphere (magnetic inclination ~27°) in Tucumán region, Argentina, are presented.
Baše, J., Burešová, D., Cabrera, M. A., Cangemi, José Ignacio, Chum, J., Ezquer, Rodolfo Gerardo, Fišer, J., Hruška, F., Ise, Juan Eduardo, Laštovička, J., Miranda Bonomi, Fernando Alberto, Molina, Maria Graciela, Šindelářová, T.   +12 more
core   +2 more sources

New low power pulse compressed ionosonde at Gibilmanna Ionospheric Observatory

Annals of Geophysics, 2005
A digital low power pulse compressed ionosonde was developed at the Istituto Nazionale di Geofisica e Vulcanologia (INGV), Rome, Italy. The aim of this Advanced Ionospheric Sounder, AIS-INGV, is to reduce the transmitted power and, consequently,
G. Tutone, C. Scotto, U. Sciacca, V. Romano, M. Pezzopane, C. Bianchi, J. A. Baskaradas, E. Zuccheretti   +7 more
doaj   +1 more source