CEDAR
Coupling, Energetics and Dynamics of Atmospheric Regions Program
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Thermospheric dynamics studies using the Fabry-Perot Inteferometer network in Western South America

Luis
Navarro
University of Colorado at Boulder
Abstract text

The ionosphere and themosphere dynamics within the Western South American (WSA) region, between ~70-75 W and extending from ~35°S to 5°S, is strongly influenced by the Appleton Fountain effect operating over the geomagnetic equator and by atmospheric forcing effects penetrating from lower-altitude regions. These effects manifest through phenomena that are generally explained by the coupled feedback of ion-neutral processes. These have been analyzed from neutral winds and temperatures from Fabry-Perot Interferometer in Peru and Argentina. The FPI located at the El Leoncito Observatory (31.8S, 69.3W) has been recently upgraded with a narrow-band filter to improve its resilience against contaminant spectral lines. Climatological comparison of our neutral winds and temperatures are discussed and compared with historical observations from the FPI at Jicamarca Radio Observatory (11.9S, 76.9W) along with comparison from empirical and theoretical models.

Authors
Luis Navarro, University of Colorado, USA
John Meriwether, New Jersey Institute of Technology, USA
Carlos Martinis, Boston University, USA
Jose Aballay, Complejo Astronómico El Leoncito, CONICET-UNLP-UNC-UNSJ, San Juan, Argentina
P. Pereira, Complejo Astronómico El Leoncito, CONICET-UNLP-UNC-UNSJ, San Juan, Argentina
B. Garcia, Complejo Astronómico El Leoncito, CONICET-UNLP-UNC-UNSJ, San Juan, Argentina
Joan Conza, Geophysical Institute of Peru
Ricardo Rojas, Geophysical Institute of Peru
Cesar DeLaJara, Geophysical Institute of Peru
Danny Scipion, Geophysical Institute of Peru
Non-Student
Poster category
EQIT - Equatorial Ionosphere or Thermosphere
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