Results 91 to 100 of about 723 (151)

An analysis of ionospheric characteristic parameters retrieved from COSMIC and IRI at Jicamarca during the period of 2007-2013

open access: yes, 2015
To evaluate comprehensively the performance of the Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC) and the International Reference Ionosphere (IRI), ionospheric characteristic parameters, the F2-peak density NmF2 and the ...
Hong, Yuan, Zhi, Huang
core   +1 more source

Behavior of the scale height at the F2 layer peak derived from Digisonde measurements at two European stations

open access: yes, 2007
A new technique is presented to estimate the electron density topside profile from information derived from ground-based ionograms. The electron density above the F2 peak is approximated by an a-Chapman function with constant scale height (Hm).
Altadill, D   +5 more
core   +1 more source

Assessment of the NeQuick Model at Mid-latitudes using GPS TEC and Ionosonde Data.

open access: yes, 2021
At the Dourbes station, a digisonde 256 is colocated with a Turbo Rogue GPS receiver. Real time processing of the digisonde data gives the electron density profile and the ITEC value (SAO file) for each sounding.
Warnant, R., Bidaine, B.
core  

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

open access: yesRemote 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   +6 more
doaj   +1 more source

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

open access: yes, 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.   +4 more
core   +1 more source

THE PRINCIPLE OF GENERALIZED DIGISONDE DRIFT ANALYSIS

open access: yesChinese Journal of Space Science, 1994
Jian-shan Guo   +4 more
openaire   +1 more source

Digisonde measurements of polar cap convection for northward interplanetary magnetic field

open access: yes, 1992
Controversy still exists regarding even the average convection pattern when the interplanetary magnetic field (IMF) has a northward component. Using two years of convection data from a Digisonde located at Qaanaaq only 3° from the corrected geomagnetic ...
REINISCH, BW   +3 more
core   +1 more source

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

open access: yesHistory 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

open access: yesSpace 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

Assessment of the Topside Sounder Model Profiler performance

open access: yes, 2008
In this investigation we apply a model-assisted technique to construct the topside electron density profile.This technique is based on the Topside Sounder Model (TSM), which provides the plasma scale height (Ts), O+/H+ transition height (Th), and their ...
Belehaki, Anna   +5 more
core  

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