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The main objective of the present investigation has been to compare the ionospheric parameters (NmF2 and hmF2) observed by two ground-based ionospheric sounders (one at PALMAS- located near the magnetic equator and the other at Sao Jose dos Campos-located in the low-latitude region) in the Brazilian sector with that by the satellite FORMOSAT-3/COSMIC radio occultation (RO) measurements during two geomagnetic storms which occurred in December 2006 and July 2009. It should be pointed out that in spite of increasing the lati ...
Published by: Advances in Space Research Published on: 11/2012
YEAR: 2012   DOI: 10.1016/j.asr.2012.07.006
Published by: Annales Geophysicae Published on: Jan-01-2011
YEAR: 2011   DOI: 10.5194/angeo-29-919-2011