2004 BHATTACHARYYA, Archana (b. 1948) PhD(Northwestern),FNA,FASc, Formerly Director, IIG; INSA Senior Scientist, Centre of Studies in Resources Engineering, Indian Institute of Technology Bombay, 3 YP Road, IIT Area, Powai, Mumbai – 400076; Res. 303, Mohnesh 3, Sector 21, Nerul, Navi Mumbai – 400706; Tel: (022) 27722014(R), 09619543004(M); Email: ; Sp. Ionospheric Physics/Geomagnetism/Space Weather.