Quiet time ionospheric variability over Arecibo during sudden stratospheric warming events

J. L. Chau, N. A. Aponte, E. Cabassa, M. P. Sulzer, Larisa Petrovna Goncharenko, S. A. Gonzlez

Research output: Contribution to journalArticle

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Abstract

We present observations of the F-region ionosphere over Arecibo, Puerto Rico (18.34N, 66.75W), during the January-February 2008 and January-February 2009 sudden stratospheric warming (SSW) events. For the first period (2008), we have used incoherent scatter radar (ISR) electron density and temperature measurements from the Arecibo Observatory (AO), as well as relative total electron content (TEC) derived from a dual-frequency GPS receiver. For the second event (2009), during which we observed the largest recorded stratospheric warming, we have used the relative GPS TEC. Our analysis indicates that the ionosphere over Arecibo exhibits perturbations after the SSW, the effects are most visible during the daytime. The strongest signatures are observed in the TEC measurements, represented by large enhancements (with respect to non SSW days), particularly during daytime hours. However, the local time dependence of these enhancements is not the same in the two events. In addition, the data show that our results are consistent with the larger than normal daytime vertical drift differences observed at the magnetic equator over Jicamarca. The electron temperature is also affected during the daytime due to changes in electron density, indicating that the electron temperatures is influenced, indirectly, by changes in planetary wave activity in the lower altitudes.

Original languageEnglish
Article numberA00G06
JournalJournal of Geophysical Research: Space Physics
Volume115
Issue number9
DOIs
Publication statusPublished - Jan 1 2010

Fingerprint

stratospheric warming
Upper atmosphere
daytime
ionospherics
Electron temperature
electrons
electron density
Ionosphere
ionosphere
electron energy
GPS
ionospheres
Electrons
Global positioning system
electron
Electron density measurement
temperature
planetary wave
F region
Puerto Rico

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Geophysics

Cite this

Chau, J. L., Aponte, N. A., Cabassa, E., Sulzer, M. P., Goncharenko, L. P., & Gonzlez, S. A. (2010). Quiet time ionospheric variability over Arecibo during sudden stratospheric warming events. Journal of Geophysical Research: Space Physics, 115(9), [A00G06]. https://doi.org/10.1029/2010JA015378

Quiet time ionospheric variability over Arecibo during sudden stratospheric warming events. / Chau, J. L.; Aponte, N. A.; Cabassa, E.; Sulzer, M. P.; Goncharenko, Larisa Petrovna; Gonzlez, S. A.

In: Journal of Geophysical Research: Space Physics, Vol. 115, No. 9, A00G06, 01.01.2010.

Research output: Contribution to journalArticle

Chau, J. L. ; Aponte, N. A. ; Cabassa, E. ; Sulzer, M. P. ; Goncharenko, Larisa Petrovna ; Gonzlez, S. A. / Quiet time ionospheric variability over Arecibo during sudden stratospheric warming events. In: Journal of Geophysical Research: Space Physics. 2010 ; Vol. 115, No. 9.
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