Results 231 to 240 of about 792,786 (268)
Some of the next articles are maybe not open access.
Quantifying spread F by digital ionosondes
Advances in Space Research, 2003The width of frequency-spreading (Δff) on ionograms was shown (Wright, et al., 1977, by comparison with OGO-6 Satellite observations) to be proportional to ΔNN near and above the F-region peak. Thus, even classical analog ionograms using logarithmic frequency scales were direct reading for this important parameter, although little use has been made of ...
openaire +1 more source
Plasma density discontinuity and spread F
Journal of Atmospheric and Terrestrial Physics, 1984It is shown that the generation of the equatorial spread F irregularity in the post-sunset period need not he always at the base of the F region. The irregularities are generated at the E region, provided there existed a retardation type E2 layer or a uniform blanketing sporadic E layer before the sunset.
openaire +1 more source
On the region of mid-latitude spread-F
Acta Geodaetica et Geophysica Hungarica, 2002Mid latitude spread-F has extensively studied recently as compared to the earlier periods. In the course of these investigations two concepts have appeared in the literature concerning the origin of the mid-latitude spread-F. The first concept based on radar measurements attributes the development of spread-F to plasma instabilities (Fukao et al. 1988),
openaire +2 more sources
Spread-F and the parameters of the F-layer of the ionosphere-II. Spread-F and F-layer height
1962An analysis has been made of spread-F data obtained from I.G.Y. f{hook}-plots for several ionosonde stations grouped about longitude 75°W to establish whether there is any connexion between the incidence of the frequency-spreading component of spread-F and the height of the F2-layer.
openaire +2 more sources
Journal of Atmospheric and Terrestrial Physics, 1962
B.V. Krishnamurthy, B.Ramachandra Rao
openaire +1 more source
B.V. Krishnamurthy, B.Ramachandra Rao
openaire +1 more source
1962
An analysis has been made of spread-F data obtained from I.G.Y. f{hook}-plots for several ionosonde stations grouped about longitude 75°W, to establish whether there is any connexion between the incidence of spread-F and f{hook}0F2, F-layer electron content and semi-thickness.
openaire +2 more sources
An analysis has been made of spread-F data obtained from I.G.Y. f{hook}-plots for several ionosonde stations grouped about longitude 75°W, to establish whether there is any connexion between the incidence of spread-F and f{hook}0F2, F-layer electron content and semi-thickness.
openaire +2 more sources
1962
An analysis has been made of spread-F data, obtained from I.G.Y. f{hook}-plots for several ionosonde stations grouped about longitude 75°W to establish whether there is any connexion between the incidence of the frequency-spreading component of spread-F and the vertical movement of the F2-layer.
openaire +2 more sources
An analysis has been made of spread-F data, obtained from I.G.Y. f{hook}-plots for several ionosonde stations grouped about longitude 75°W to establish whether there is any connexion between the incidence of the frequency-spreading component of spread-F and the vertical movement of the F2-layer.
openaire +2 more sources
Minimizing the spread of misinformation in online social networks: A survey
Journal of Network and Computer Applications, 2021Ahmad Zareie, Rizos Sakellariou
exaly