INVESTIGADORES
DE LA TORRE Alejandro
congresos y reuniones científicas
Título:
Wave activity at ionospheric and tropospheric-stratospheric heights above the Andes Mountains detected from FORMOSAT-3/COSMIC GPS radio occultation data
Autor/es:
95. DE LA TORRE, A., ALEXANDER, P., LLAMEDO, P., HIERRO, R., SCHMIDT, T. Y WICKERT, J.
Lugar:
Queenstown
Reunión:
Conferencia; SPARC; 2014
Resumen:
We analyze the possible relationship between propagating gravity waves detected in the troposphere-stratosphere and the lower ionosphere near and above the highest Andes mountains. Wave activity proxies given by relative neutral temperature and electron density variance respectively are calculated, from six years of FORMOSAT 3/ COSMIC GPS (Taiwan?s Formosa Satellite Mission 3/Constellation Observing System for Meteorology - Global Positioning System) radio occultation data. Linear and rank correlation is tested for pairs of these indicators, corresponding to occultation events in the considered region. A systematic enhancement of wave activity at the eastern ionospheric side of the Andes range, with respect to the western side, is observed. The seasonal variability as well as differential effect introduced by the action of orography on the generation of mountain, deep convection or even secondary waves is discused.