• Publications
  • Influence
Spatial and seasonal variations of the foF2 long-term trends
Using a method suggested by the authors earlier, the long-term trends of the F2-layer critical frequency, foF2 are derived for a set of ionospheric stations with a wide latitudinal and longitudinalExpand
Seasonal and diurnal variations in foF2 trends
Median values of the F2 layer critical frequencies observed at ionospheric stations Slough, Juliusruh, and Rome are analyzed in detail. Long-term trends in foF2, k(fo), for the period 1985–2009 areExpand
Long-term trends in foF2: A comparison of various methods
Results of various authors on long-term trends in foF2, which is equivalent to the maximum electron density in the ionosphere, and their interpretation do not reveal a consistent pattern. Therefore,Expand
Scatter of hmF2 values as an indicator of trends in thermospheric dynamics
Abstract Analysis of the variability of the @F2-layer height, @hmF2@, from the 1950s to 1960s to the 1990s is performed on the basis of vertical sounding data for a series of midlatitude ionosphericExpand
Letter to the editor
Using a method suggested by the authors earlier, the long-term trends of the F2-layer critical frequency, foF2 are derived for a set of ionospheric stations with a wide latitudinal and longitudinalExpand
F2-layer parameters long-term trends at the Argentine Islands and Port Stanley stations
Abstract. The ionospheric sounding data at two southern hemisphere stations, the Argentine Islands and Port Stanley, are analyzed using a method previously developed by the authors. Negative trendsExpand
Long-term trends in the relation between daytime and nighttime values of foF2
The data from the vertical ionospheric sounding for 12 stations over the world were analyzed to find the rela- tion between the values of foF2 for 02:00 LT and 14:00 LT of the same day. It is foundExpand
Time and spatial variations in the ratio of nighttime and daytime critical frequencies of the F2 layer
The ratio of daytime and nighttime values of the foF2 critical frequency is analyzed on the basis of the data of 28 ionospheric stations in the Eastern Hemisphere. It is found that three types ofExpand
Critical frequency foF2 as an indicator of trends in thermospheric dynamics
The time variations in three parameters during the last decades are considered. R(foF2) is the correlation coefficient between the nighttime and daytime values of foF2 for the same day. Stable trendsExpand
...
1
2
3
4
5
...