27.J.Goldstein,B.R.Sandel,W.T.Forrester,M.F.Thomsen,M.R.Hairston Global plasmasphere evolution 22-23 April 2001.J.Geop/nys.Res.110, A12218(2005).doi10.1029/2005JA011282 28.R.E.Denton et al.,Magnetospheric electron density long-term (>I day) refilling rates inferred from passive radio emissions measured by IMAGE RP during geomagnetically quiet times.J.Geophys.Res.117,A03221 (2012) doi:10.10292011JA017274 Acknowledgments:This work was supported by RBSP-ECT funding provided by JHU/APL contract no.967399 while EMFISIS work was supported on JHU/APL contract no.921649 both under NASA's Prime contract no.NAS5- 01072.All Van Allen Probes observations used in this study,along with display and analysis software,are publicly available at the Web site www.rbsp-ect.lanl.gov. Supplementary Materials www.sciencemag.org/cgi/content/full/science.1233518/DCI Supplementary Text Figs.S1 and S2 References 3 December 2012;accepted 5 February 2013 Published online 28 February 2013 10.1126/science..1233518 Sciencexpress/http://www.sciencemag.org/content/early/recent /28 February 2013/Page 3/10.1126/science.1233518/ http://www.sciencemag.org/content/early/recent / 28 February 2013 / Page 3 / 10.1126/science.1233518 27. J. Goldstein, B. R. Sandel, W. T. Forrester, M. F. Thomsen, M. R. Hairston, Global plasmasphere evolution 22–23 April 2001. J. Geophys. Res. 110, A12218 (2005). doi:10.1029/2005JA011282 28. R. E. Denton et al., Magnetospheric electron density long-term (>1 day) refilling rates inferred from passive radio emissions measured by IMAGE RPI during geomagnetically quiet times. J. Geophys. Res. 117, A03221 (2012). doi:10.1029/2011JA017274 Acknowledgments: This work was supported by RBSP-ECT funding provided by JHU/APL contract no. 967399 while EMFISIS work was supported on JHU/APL contract no. 921649 both under NASA’s Prime contract no. NAS5- 01072. All Van Allen Probes observations used in this study, along with display and analysis software, are publicly available at the Web site www.rbsp-ect.lanl.gov. Supplementary Materials www.sciencemag.org/cgi/content/full/science.1233518/DC1 Supplementary Text Figs. S1 and S2 References 3 December 2012; accepted 5 February 2013 Published online 28 February 2013 10.1126/science.1233518 on March 6, 2013 www.sciencemag.org Downloaded from