Options
Gende, M.
Loading...
Preferred name
Gende, M.
2 results
Now showing 1 - 2 of 2
- PublicationOpen AccessIonospheric response to the 2009 sudden stratospheric warming over the equatorial, low, and middle latitudes in the South American sector(2015)
; ; ; ; ; ; ; ; ; ;Fagundes, P. R.; Universidade do Vale do Paraíba (UNIVAP) ;Goncharenko, L. P.; Massachusetts Institute of Technology ;de Abreu, A. J.; Universidade do Vale do Paraíba (UNIVAP) ;Venkatesh, K.; Universidade do Vale do Paraíba (UNIVAP) ;Pezzopane, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;de Jesus, R.; Universidade do Vale do Paraíba (UNIVAP) ;Gende, M.; Universidad Nacional de La Plata ;Coster, A. J.; Massachusetts Institute of Technology ;Pillat, V. G.; Universidade do Vale do Paraíba (UNIVAP) ;; ; ; ; ; ; ; The present study investigates the ionospheric total electron content (TEC) and F-layer response in the Southern Hemisphere equatorial, low, and middle latitudes due to major sudden stratospheric warming (SSW) event, which took place during January–February 2009 in the Northern Hemisphere. In this study, using 17 ground-based dual frequency GPS stations and two ionosonde stations spanning latitudes from 2.8°N to 53.8°S, longitudes from 36.7°W to 67.8°W over the South American sector, it is observed that the ionosphere was significantly disturbed by the SSW event from the equator to the midlatitudes. During day of year 26 and 27 at 14:00 UT, the TEC was two times larger than that observed during average quiet days. The vertical TEC at all 17 GPS and two ionosonde stations shows significant deviations lasting for several days after the SSWtemperature peak. Using one GPS station located at Rio Grande (53.8°S, 67.8°W, midlatitude South America sector), it is reported for the first time that the midlatitude in the Southern Hemisphere was disturbed by the SSW event in the Northern Hemisphere.419 281 - PublicationOpen AccessIonospheric biases correction for coordinates derived from GPS single point positioning(2005)
; ; ; ; ; ;Gende, M.; Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Argentina ;Mohíno Harris, E.; Departamento de Geofísica y Meteorología, Universidad Complutense de Madrid, Spain ;Brunini, C.; Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Argentina ;Radicella, S. M.; Aeronomy and Radiopropagation Laboratory, The Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy ;Herraiz, M.; Departamento de Geofísica y Meteorología, Universidad Complutense de Madrid, Spain; ; ; ; Most GPS users employ low cost receivers. These receivers do not allow users to record the pseudorange that they observe, but the computed coordinates. This work presents an original and simple method to correct ionospheric biases introduced in GPS signals. The originality of this method is based on the fact that no pseudorange is needed to correct the biases, only the calculated coordinates are used. This distinguishes this method from other classic alternatives. This paper evaluates the efficiency of the method with the use of real data.182 493