ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] The total non-deviative ionospheric absorption of 27-6 Mc./s. radio waves is being measured at the Observatory on a routine basis by means of a so-called 'riometer' (relative ionospheric opacity meter) designed by C. G. Little3 at the Geophysical Institute, College, Alaska. The riometer is a ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/1831179a0