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        Geophysical Center, Russian Academy of Sciences World Data Center for Solar-Terrestrial Physics & World Data Center for Solid Earth Physics  
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GEOPHYSICAL DATA: ARCTIC Geomagnetic Data Seismological Data Heat Flow Gravity Data Cosmic Rays Volcanoes ANTARCTIC Geomagnetic Data Seismological Data Heat Flow Gravity Data Cosmic Rays Volcanoes Main Page  |  
            
                
                A  R  C  T  I  C : 
                            Ionospheric Phenomena 
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                Recorded on the Drifting Polar Stations "North Pole 6" and "North Pole 7" for the period from 1957 to 1959  | 
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http://www.wdcb.ru/WDCB/IPY/Arctic_ionosph.html
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