56 citations as recorded by crossref.

1. Long-term changes and trends in the lower ionosphere J. Lastovicka
2. Long-term trends in foF2: A comparison of various methods J. Laštovička et al.
3. Long-term trends of the F2-region at mid-latitudes in the Southern Hemisphere A. Sharan & S. Kumar
4. Trends in the F2-layer critical frequency from data obtained at the ionospheric station Yakutsk during the period from 1956 to 2017 S. Kobyakova et al.
5. Trends in the ionospheric E-region A. Mikhailov
6. Effects on the Ionosphere Due to Phenomena Occurring Below it E. Kazimirovsky et al.
7. Incidence of solar cycle 24 in nighttime foF2 long-term trends for two Japanese ionospheric stations B. de Haro Barbás et al.
8. Ionospheric Trend Over Wuhan During 1947–2017: Comparison Between Simulation and Observation X. Yue et al.
9. An Overview of Long-Term Trends in the Lower Ionosphere Below 120 km J. Laštovička & J. Bremer
10. Geomagnetic Activity Effects on CO2‐Driven Trend in the Thermosphere and Ionosphere: Ideal Model Experiments With GAIA H. Liu et al.
11. On the role of solar and geomagnetic activity in long-term trends in the atmosphere–ionosphere system J. Laštovička
12. The Contribution of Geomagnetic Activity to Ionospheric foF2 Trends at Different Phases of the Solar Cycle by SWM H. Li et al.
13. Long-term variation in the upper atmosphere as seen in the geomagnetic solar quiet daily variation A. Shinbori et al.
14. Geomagnetic control of the midlatitude foF1 and foF2 long‐term variations: Recent observations in Europe L. Perrone & A. Mikhailov
15. F2-region response to geomagnetic disturbances A. Danilov
16. Modeling the effects of secular variation of geomagnetic field orientation on the ionospheric long term trend over the past century X. Yue et al.
17. Long-term trends of the critical frequency of the F2 layer at northern and southern high latitude regions L. Alfonsi et al.
18. Long‐term ionospheric trends based on ground‐based ionosonde observations at Kokubunji, Japan Z. Xu et al.
19. foF2 Long-Term Trend at a Station Located near the Crest of the Equatorial Ionization Anomaly D. Gnabahou et al.
20. Long-term trends in F2-layer parameters and their relation to other trends A. Danilov
21. Review of Long-Term Trends in the Equatorial Ionosphere Due the Geomagnetic Field Secular Variations and Its Relevance to Space Weather A. Elias et al.
22. foF2 vs solar indices for the Rome station: Looking for the best general relation which is able to describe the anomalous minimum between cycles 23 and 24 L. Perna & M. Pezzopane
23. Thermospheric parameters’ long-term variations over the period including the 24/25 solar cycle minimum. Whether the CO2 increase effects are seen? A. Mikhailov et al.
24. Long‐term trend of foF2 at a West African equatorial station linked to greenhouse gas increase and dip equator secular displacement D. Gnabahou et al.
25. Signature of a possible relationship between the maximum CME speed index and the critical frequencies of the F1 and F2 ionospheric layers: Data analysis for a mid-latitude ionospheric station during the solar cycles 23 and 24 A. Kilcik et al.
26. Trends in critical frequencies and layer heights over Tromsø and their consequential impact for radio system modelling P. Cannon et al.
27. Trends in the F2 ionospheric layer due to long-term variations in the Earth's magnetic field A. Elias
28. Trends in the solar quiet geomagnetic field variation linked to the Earth's magnetic field secular variation and increasing concentrations of greenhouse gases A. Elias et al.
29. The geomagnetic control concept of the F2-layer parameter long-term trends A. Mikhailov
30. Applying artificial neural network to derive long‐term foF2 trends in the Asia/Pacific sector from ionosonde observations X. Yue et al.
31. Progress in observations and simulations of global change in the upper atmosphere L. Qian et al.
32. Progress in studies of the trends in the ionosphere F region A. Danilov
33. Trends in the Neutral and Ionized Upper Atmosphere J. Laštovička et al.
34. Model simulations of global change in the ionosphere L. Qian et al.
35. Long-Term Evolution of the Parameters of Ionospheric Disturbances of the F2 Layer N. Sergeenko
36. Critical Issues in Ionospheric Data Quality and Implications for Scientific Studies E. Araujo‐Pradere et al.
37. Modeling of GPS total electron content over the African low-latitude region using empirical orthogonal functions G. Andima et al.
38. Antarctica's role in understanding long-term change in the upper atmosphere M. Jarvis
39. Comparing long-term trends in the ionospheric F2-region with two different methods J. Bremer et al.
40. Long‐term changes in solar quiet (Sq) geomagnetic variations related to Earth's magnetic field secular variation B. de Haro Barbas et al.
41. Modeling and Forecasting Ionospheric foF2 Variation Based on CNN-BiLSTM-TPA during Low- and High-Solar Activity Years B. Xu et al.
42. Do ionospheric trends indicate to the greenhouse effect? A. Danilov
43. The effect of carbon dioxide cooling on trends in the F2-layer ionosphere L. Qian et al.
44. Trends in the F2-layer critical frequency from data obtained at the ionospheric station Yakutsk during the period from 1956 to 2017 S. Kobyakova et al.
45. Overview of the trends in the ionospheric E and F2 regions A. Danilov
46. Trends in foF2 above Tromsø (69°N 19°E) C. Hall & P. Cannon
47. Ionospheric variability: a comparative statistical study S. Kouris & D. Fotiadis
48. Impact of Anthropogenic Emission Changes on the Occurrence of Equatorial Plasma Bubbles X. Zhou et al.
49. Long-term variations of the upper atmosphere parameters on Rome ionosonde observations and their interpretation L. Perrone et al.
50. Earth magnetic field and geomagnetic activity effects on long-term trends in the F2 layer at mid-high latitudes A. Elias & N. Ortiz de Adler
51. The accuracy of data from ionosondes for the estimation of hmF2 and the identification of global change in the ionosphere C. Scotto
52. Indication of shrinking atmosphere above Tromsø (69 °N, 19 °E) C. Hall & P. Cannon
53. Long-term trends in foF2 over Moscow ionosonde station: Its estimate and origins H. Fang et al.
54. Solar activity dependence of total electron content derived from GPS observations over Mbarara A. Adewale et al.
55. On the global behaviour of the day-to-day MUF variation D. Fotiadis et al.
56. foF2 long-term trends at the southern crest of the equatorial anomaly A. Elías & N. de Adler