Earthquake Research Institute / Rome Astronomical Observatory / National Geophysical Data Center / Istanbul University Observatory / Boˇgazic¸i University / ATILA ÖZGÜÇ Kandilli Observatory / Kandilli Observatory / /
IndustryTerm
active network / radiant energy / energy / /
Organization
National Geophysical Data Center / National Oceanic and Atmospheric Administration / Boˇgazic¸i University / National Research Council of Canada / Sunspot Index Data Center / ATILA ÖZGÜÇ Kandilli Observatory and Earthquake Research Institute / /
FLARE INDEX OF SOLAR CYCLE 22 TAMER ATAÇ and ATILA ÖZGÜÇ Kandilli Observatory and Earthquake Research Institute, Boˇgazic¸i University, C ¸ engelk¨oy, 81220 Istanbul, Turkey (Received 17 June 1997; accepted 5 Dec