Abnormal Enhancements of HF Noise Intensity at Syowa Station, Antarctica Nishimuta, Ichiro ; Ose, Masami ; Sinno, Kenji Abstract Publication: Journal of Geomagnetism and Geoelectricity Pub Date: 1969 DOI: 10.5636/jgg.21.697 Bibcode: 1969JGG....21..697N