Results 31 to 40 of about 1,219 (180)
F region drift observations from Athens Digisonde [PDF]
Radio Science, 2006 Ionospheric drift measurements are of significant importance in the monitoring of the upper atmosphere dynamics and an important contributor toward the deeper understanding of the ionospheric electrodynamics. An interesting perspective for operational ionospheric drift measurements comes from the HF radars, such as the Digisondes.
Anna Belehaki +3 more
openaire +1 more source
Solar-Terrestrial Physics, 2017 The Yakutsk Meridional Chain (YMC) of IKFIA SB RAS, located along the 190° magnetic meridian, is equipped with geophysical and radiophysical instruments for monitoring space weather in northeast-ern Russia.
Baishev D.G. +9 more
doaj +1 more source
Remote Sensing, 2019 In this study, two ionospheric peak parameters (ICPs), NmF2 and hmF2, derived from the global navigation satellite system (GNSS) radio occultation (RO) ionospheric electron density profiles (EDPs) obtained by Feng-Yun 3C (FY-3C) mission are compared with
Han Wang, Jia Luo, Xiaohua Xu
doaj +1 more source
GPS TEC and ionosonde TEC over Grahamstown, South Africa: first comparisons [PDF]
, 2007 The Grahamstown, South Africa (33.3°S, 26.5°E) ionospheric field station operates a UMass Lowell digital pulse ionospheric sounder (Digisonde) and an Ashtech geodetic grade dual frequency GPS receiver.
Cilliers, Pierre J +2 more
core +2 more sources
Gravity wave initiation of equatorial spread F/plasma bubble irregularities based on observational data from the SpreadFEx campaign [PDF]
Annales Geophysicae, 2009 The data from ground based experiments conducted during the 2005 SpreadFEx campaign in Brazil are used, with the help of theoretical model calculations, to investigate the precursor conditions, and especially, the role of gravity waves, in the ...
M. A. Abdu +5 more
doaj +1 more source
Deep learning for face detection using matlab [PDF]
, 2020 This project report presents face detection using Convolutional Neural Network algorithm and Deep Learning combination (DCT / DL) throughout MATLAB simulation and modeling.
Slim, Salim Adnan
core
Food security dynamics in Oman: VECM approach [PDF]
, 2020 The paper examines the determinants of food security in Oman during the period 1980-2019. It investigates the influence of population growth rate and GDP per capita on food security.
Devesh, Sonal +1 more
core
A comparison of Ne (h) model profiles with ground-based and topside sounder observations
Annals of Geophysics, 2000 Monthly median empirical models IRI-95 and NeUoG were compared with incoherent scatter EISCAT and Millstone Hill observations as well as with El Arenosillo Digisonde N e (h) bottomside profiles.
V. K. Depuev +3 more
doaj +1 more source
Study of sporadic E layers based on GPS radio occultation measurements and digisonde data over the Brazilian region [PDF]
Annales Geophysicae, 2018 This work presents new results about sporadic E-layers (Es layers) using GPS (global positioning system) radio occultation (RO) measurements obtained from the FORMOSAT-3/COSMIC satellites and digisonde data.
L. C. A. Resende +6 more
doaj +1 more source
地球与行星物理论评To ensure the detection quality of the domestic model ionospheric digisonde adopted by the Phase II of Chinese Meridian Project, prototype testing including technique testing and a data quality comparison was performed.
Zhiqing Chen +5 more
doaj +1 more source