Balsley, Ben B.Rey, AugustoWoodman Pollitt, Ronald Francisco2018-07-032018-07-031976-03-01Balsley, B., Rey, A., & Woodman, R. F. (1976). On the plasma instability mechanisms responsible for Esq.==$Journal Geophysical Research, 81$==(7), 1391-1396. https://doi.org/10.1029/JA081i007p01391http://hdl.handle.net/20.500.12816/1644Evidence is presented showing that the gradient drift (type 2) irregularities are the most probable scatterers responsible for equatorial sporadic E (Esq) echoes observed on conventional equatorial ionograms and that the two‐stream (type 1) irregularities are not detectable at ionosonde wavelengths (1–10 MHz).application/pdfenginfo:eu-repo/semantics/restrictedAccessPlasma instabilitiesIonosphereE Regioninfo:eu-repo/semantics/articlehttp://purl.org/pe-repo/ocde/ford#1.05.01Journal de Geophysical Researchhttps://doi.org/10.1029/JA081i007p01391