TY - JOUR A1 - Michell, R. G. A1 - Lynch, K. A. A1 - Heinselman, C. J. A1 - Stenbaek-Nielsen, H. C. T1 - High time resolution PFISR and optical observations of naturally enhanced ion acoustic lines JO - Ann. Geophys. J1 - ANGEO VL - 27 IS - 4 SP - 1457 EP - 1467 Y1 - 2009/04/01 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/27/1457/2009/ L1 - https://angeo.copernicus.org/articles/27/1457/2009/angeo-27-1457-2009.pdf DO - 10.5194/angeo-27-1457-2009 ER -