Wave activity at ionospheric heights above the Andes Mountains detected from FORMOSAT-3/COSMIC GPS radio occultation data

An estimation of the ionospheric wave activity, derived from 4 years of FORMOSAT-3/ COSMIC GPS (Taiwan's Formosa Satellite Mission 3/Constellation Observing System for Meteorology - Global Positioning System) radio occultation electron density data, is presented. A systematic enhancement at the...

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Detalles Bibliográficos
Autores principales: De La Torre, A., Alexander, P., Llamedo, P., Hierro, R., Nava, B., Radicella, S., Schmidt, T., Wickert, J.
Formato: JOUR
Materias:
Andes Mountains
gravity waves
ionospheric disturbances
radio occultation
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_21699402_v119_n3_p2046_DeLaTorre
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:An estimation of the ionospheric wave activity, derived from 4 years of FORMOSAT-3/ COSMIC GPS (Taiwan's Formosa Satellite Mission 3/Constellation Observing System for Meteorology - Global Positioning System) radio occultation electron density data, is presented. A systematic enhancement at the eastern side of the Andes range with respect to the western side is observed. A fitting method to remove the wavelike component from each measured profile and estimate the wave activity is described. The differential effect introduced by the action of orography on the generation, to the eastern side of the Andes, of mountain waves, deep convection waves, or even secondary waves aloft after momentum deposition in the middle atmosphere, is suggested. Key Points The Andes Mountains favor the ionospheric wave activity at the eastern side This feature agrees with some dynamical aspects of the lower atmosphere ©2014. American Geophysical Union. All Rights Reserved.

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