INVESTIGATIONS OF PROPERTIES OF THE AURORAL ZONE IONOSPHERE BY MEANS OF A RADIOASTRONOMICAL SWEPT-FREQUENCY INTERFEROMETER, COVERING THE FREQUENCY BAND 35-65 MC/S.

• Main Author: Liszka,Ludwik
• Other Authors: KIRUNA GEOPHYSICAL OBSERVATORY (SWEDEN)
• Format: Text
• Language: English
• Published: 1962
• Subjects: (*INTERFEROMETERS); (*RADIATION EFFECTS); (*IONOSPHERE); INTENSITY; RADIO SIGNALS; SATELLITES(ARTIFICIAL); DENSITY; BROADBAND; MAGNETIC PROPERTIES; MEASUREMENT; SPACE ENVIRONMENTS; Kiruna
• Online Access: http://www.dtic.mil/docs/citations/AD0282198; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0282198

Results obtained with the help of a radioastronomical swept-frequency interferometer at Kiruna Geophysical Observatory during the months March - December, 1961, are discussed. A special type of increase of the broad-band radiation intensity of the radio-source Cassiopeia has been observed. This seems to result from the focusing effect of single ionospheric regions of a size larger than the first Fresnel zone. An investigation of correlation of the increases with other geophysical parameters has also been made. (Author)