Climatic trends in E-region critical frequency and virtual height above Tromsø (70° N, 10° E)
We have examined the long time series of observations of E-region virtual height (1948–2006) and critical frequency (1935-2006) hitherto made by the Tromsø ionosonde at 70° N, 19° E. Combining a simplistic trend analysis with a rigorous treatment of errors we identify a...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2007-11-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/25/2351/2007/angeo-25-2351-2007.pdf |