Results 31 to 40 of about 2,902 (228)
Vertical and Oblique Ionosphere Sounding During the 21 August 2017 Solar Eclipse
Geophysical Research Letters, 2018 On 21 August 2017, a total solar eclipse crossed North America. Two Vertical Incident Pulsed Ionospheric Radar ionosondes were operated, one deployed under totality at Lusk, Wyoming, and another south of totality, 313 km away from the geomagnetic ...
Terence Bullett, Justin Mabie
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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
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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 +4 more
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TGO Ramfjordmoen Ionosonde Data March 2009
, 2019 About this dataset: This dataset contains ionosonde data in SAO format and ionograms in PNG format, and covers data from March 01-31, 2009.About the Tromsø Ionosonde (1993-present): Since 1980, the ionosonde was situated at 69° 35' N, 19° 13' E at ...
Tromsø Geophysical Observatory
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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 +6 more
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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
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TGO Ramfjordmoen Ionosonde Data November 2016
, 2019 About this dataset: This dataset contains ionosonde data in SAO format and ionograms in PNG format, and covers data from November 01-30, 2016.About the Tromsø Ionosonde (1993-present): Since 1980, the ionosonde was situated at 69° 35' N, 19° 13' E at ...
Tromsø Geophysical Observatory
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Analysis of the Relation Between Solar Activity and Parameters of the Sporadic E Layer
AtmosphereBased on the ionosonde data from stations at different latitudes in high- and low-solar-activity years, the effects of solar activity on the parameters of the Es layer and the foE amplitude spectrum are analyzed.
Yabin Zhang +5 more
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Annals of Geophysics, 1998 Almost 60 years development of ionosondes and their data processing capabilities are described with emphasis on the authors contributions from the early beginnings of ionospheric studies to the latest digital equipment to be used for the exploration of the magnetosphere.
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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 +2 more
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