Results 91 to 100 of about 77,336 (163)
Geophysical Research Letters, 2019 This paper reports a special midlatitudinal medium‐scale traveling ionospheric disturbance (MSTID) event, accompanied by a poleward surge of airglow depletion/enhancement and a bifurcation of depletion during the magnetically quiet period.
Longchang Sun +7 more
doaj +1 more source
Llif yr atmosffer drydanol dros begwn y gogledd: arsylwadau tomograffi radio a SuperDARN [PDF]
, 2007 The paper investigates the structure and behaviour of the nighttime ionised (electrified) atmosphere in the polar and auroral regions; the region where the aurora borealis occurs.
Pryse, SE, Middleton, HR, Wood, AG
core
Phenomena in the ionosphere-magnetosphere system induced by injection of powerful HF radio waves into nightside auroral ionosphere [PDF]
, 2005 International audienceExperimental results from three ionospheric HF pumping experiments in overdense E or F regions are summarized. The experiments were conducted by the use of the EISCAT HF Heating facility located near Tromsø, Norway, allowing HF ...
N. F. Blagoveshchenskaya +13 more
core +2 more sources
Geophysical Research LettersUsing NASA's Global‐scale Observations of the Limb and Disk (GOLD)'s Dark Limb Mode (DLM) observations, we provide a multi‐year characterization of nighttime Equatorial Ionization Anomaly (EIA) morphology and variability.
Deepak K. Karan +4 more
doaj +1 more source
Depression of the ULF geomagnetic pulsation related to ionospheric irregularities
Annals of Geophysics, 2004 We consider a depression in intensity of ULF magnetic pulsations, which is observed on the ground surface due to appearance of the irregularities in the ionosphere.
O. A. Molchanov +4 more
doaj +1 more source
HIGHLIGHTING SEASONAL ANOMALY IN IONOSPHERE DURING MINIMUM AND MAXIMUM SOLAR CYCLE PHASES
, 2020 Ionosphere is the part of atmosphere where waves reflect for telecommunication because of its concentration in particles. The morphology of ionosphere layer is not uniform.
Kadidia Nonlo Drabo and Frederic Ouattara +1 more
core +1 more source
A modelling study of the latitudinal variations in the nighttime plasma temperatures in the equatorial topside ionosphere during northern winter at solar maximum [PDF]
, 2000 International audienceLatitudinal variations in the nighttime plasma temperatures of the equatorial topside ionosphere during northern winter at solar maximum have been examined by using values modelled by SUPIM (Sheffield University Plasmasphere ...
G. J. Bailey +8 more
core +1 more source
E3S Web of Conferences, 2018 The paper presents the results of investigation of cyclone possible effect on ionosphere parameters. Monitoring of ionosphere state has been carried out by automatic sounding applying low orbital navigational spacecrafts in the conditions of low ...
Bogdanov Vadim
doaj +1 more source
Frontiers in Astronomy and Space SciencesHigh-frequency (HF) skywave propagation relies on the ionosphere, making it susceptible to ionospheric variability. This study analyzes long-term Doppler residual measurements of a 10 MHz HF link between Fort Collins, CO, and Newark, NJ, to characterize ...
Sabastian Fernandes +5 more
doaj +1 more source
Rocket Observations of Electron Density and Temperature Profiles in the Auroral Ionosphere
Antarctic Record, 1979 Six profiles of electron density and temperature under quiet daytime and disturbed nighttime ionospheric conditions were observed by the sounding rockets launched in 1976 from Syowa Station.
Tadahiko OGAWA +2 more
doaj +1 more source