Results 91 to 100 of about 703 (173)

Electron density profiles in the equatorial ionosphere observed by the FORMOSAT-3/COSMIC and a digisonde at Jicamarca

, 2009
We examine for the first time the ionospheric electron density profiles concurrently observed by the GPS occultation experiment (GOX) onboard the FORMOSAT-3/COSMIC (F3/C) and the ground-based digisonde portable sounder DPS-4 at Jicamarca (12°S, 283°W, 1 ...
Yang, J. Y., Lee, C. C., Liu, J. Y., Chen, C. Y., Reinisch, B. W.   +4 more
core   +1 more source

Ionospheric Absorption Variation Based on Ionosonde and Riometer Data and the NOAA D-RAP Model over Europe During Intense Solar Flares in September 2017

Remote Sensing
A novel method was developed based on the amplitude data of the EM waves measured by Digisondes to calculate and investigate the relative ionospheric absorption changes.
Veronika Barta, Tamás Bozóki, Dávid Péter Süle, Daniel Kouba, Jens Mielich, Tero Raita, Attila Buzás   +6 more
doaj   +1 more source

Thermospheric parameters contribution to the formation of Yakutsk F₂-layer diurnal summer time anomaly. [PDF]

Sci Rep, 2022
Mikhailov AV, Perrone L.
europepmc   +1 more source

Apparent vertical ionospheric drift: a comparative assessment of digisonde and ionogram-based methods

Atmospheric Measurement Techniques
Abstract. Reliable estimation of vertical plasma drift in the ionosphere is crucial for interpreting ionospheric dynamics and enhancing the accuracy of space weather models. This study provides a comparative assessment of direct Digisonde Drift Measurements (DDM) and indirect ionogram-based methods using parameters such as hmF2, h′F2, h′(3.5 MHz), and ...
Kouba, D. (Daniel), Mošna, Z. (Zbyšek), Koucká Knížová, P. (Petra)   +2 more
openaire   +4 more sources

Ionospheric Narrowband and Wideband HF Soundings for Communications Purposes: A Review. [PDF]

Sensors (Basel), 2020
Hervás M, Bergadà P, Alsina-Pagès RM.
europepmc   +1 more source

Accuracy Analysis of International Reference Ionosphere 2016 and NeQuick2 in the Antarctic. [PDF]

Sensors (Basel), 2021
Guo Z, Yao Y, Kong J, Chen G, Zhou C, Zhang Q, Shan L, Liu C.   +7 more
europepmc   +1 more source

Obituary: Karl Rawer (1913–2018) [PDF]

History of Geo- and Space Sciences, 2018
B. W. Reinisch, K. Schlegel
doaj   +1 more source

On the Growth and Evolution of Nocturnal Ionospheric Irregularities Using HF Radar Observations Along With Digisonde and GNSS Data Over Trivandrum, India

Space Weather
The growth and evolution of nocturnal ionospheric plasma irregularities are analyzed over the geomagnetic equatorial station Trivandrum (8.5°N, 77°E, dip latitude 1.9°N) using multi‐instrumental techniques during various seasons of moderate and high ...
T. V. Sruthi, G. Manju
doaj   +1 more source

THE PRINCIPLE OF GENERALIZED DIGISONDE DRIFT ANALYSIS

Chinese Journal of Space Science, 1994
Jian-shan Guo, W. Reinisch Bodo, Hong ZHENG, Qi-wei ZHANG, Chu-fu XU   +4 more
openaire   +1 more source

First ICON-FUV Nighttime NmF2 and hmF2 Comparison to Ground and Space-Based Measurements. [PDF]

J Geophys Res Space Phys, 2021
Wautelet G, Hubert B, Gérard JC, Immel TJ, Frey HU, Mende SB, Kamalabadi F, Kamaci U, England SL.   +8 more
europepmc   +1 more source