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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Ionospheric response to the 2009 sudden stratospheric warming over the equatorial, low, and middle latitudes in the South American sector

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Fagundes, P. R. [1] ; Goncharenko, L. P. [2] ; de Abreu, A. J. [1] ; Venkatesh, K. ; Pezzopane, M. [3] ; de Jesus, R. [1] ; Gende, M. [4] ; Coster, A. J. [2] ; Pillat, V. G. [1]
Total Authors: 9
[1] Univ Vale Paraiba UNIVAP, Fis & Astron, Sao Jose Dos Campos, SP - Brazil
[2] MIT, MIT Haystack Observ, Westford, MA 01886 - USA
[3] Ist Nazl Geofis & Vulcanol, Rome - Italy
[4] Univ Nacl La Plata, Fac Ciencias Astron & Geofis, La Plata - Argentina
Total Affiliations: 4
Document type: Journal article
Source: JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS; v. 120, n. 9, p. 7889-7902, SEP 2015.
Web of Science Citations: 16

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 degrees N to 53.8 degrees S, longitudes from 36.7 degrees W to 67.8 degrees 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 SSW temperature peak. Using one GPS station located at Rio Grande (53.8 degrees S, 67.8 degrees 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. (AU)

FAPESP's process: 12/08445-9 - Study of day-to-day variability of the mesosphere, thermosphere and ionosphere at low latitude and equatorial region, during the solar cycle 24
Grantee:Paulo Roberto Fagundes
Support type: Research Projects - Thematic Grants