Analysis of satellite measurements of terrestrial radio noise

Details Analysis of satellite measurements of terrestrial radio noise Analysis of satellite measurements of terrestrial radio noise

Sep 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974asec.rept.....b&link_type=abstract

Final Report, 7 Nov. 1973 - 7 May 1974 Analytical Systems Engineering Corp., Burlington, MA.

Astronomy and Astrophysics

Astronomy

Explorer 38 Satellite, Noise Measurement, Noise Spectra, Computer Techniques, Contours, High Frequencies, Mapping, Noise Temperature, Polar Regions

Scientific paper

Worldwide distributions of terrestrial radio noise as monitored by Radio Astronomy Explorer 1 (RAE 1) generated and compared with CCIR predictions. These contour maps show the global morphology of radio noise at 6.55 and 9.18 MHz for fall, winter, spring and summer during the local time blocks of 00-08 LT and 16-24 LT. These computer produced maps show general agreement with CCIR predictions over large land masses. The RAE and CCIR maps diverge at high latitudes over Asia and frequently over ocean regions. Higher noise levels observed by RAE at high latitudes are attributed to magnetospheric emission while higher noise levels observed by RAE over Asia are attributable to high power transmitters. Analysis of RAE noise observations in conjunction with various geophysical phenomena showed no obvious correlation.

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