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Date: 2014-02-18 11:49:08Ionosphere Ionogram Ionosonde WWV National Geophysical Data Center International Geophysical Year Digitizing Geographic information system Sporadic E propagation | Modern Processing and Analysis of 1950s-Era Washington D.C./Ft. Belvoir 35 mm Film Ionograms D.D. Rice, J.J. Sojka, R.D. Hunsucker, and J.V. Eccles Space Environment Corporation March 2013Add to Reading ListSource URL: www.spacenv.comDownload Document from Source WebsiteFile Size: 1,04 MBShare Document on Facebook |