BARBOSA, D.; http://lattes.cnpq.br/7329368767940368; BARBOSA, Diego.
Resumo:
The present work has investigated the feasibility of study gravity waves from
the application of the Tomographic Reconstruction Methods in imager data of
the atmospheric airglow. For this purpose has been used the Stochastic Inversion
Theory to formulate the tomography method, which has used Gaussian
distributions of probabilities to model the problem variables. From prior knowledge
about the behavior of vertical airglow layers, information from "a priori
model" also modeled by Gaussian statistics reconstruction was added in order to
regulate the intensities obtained in the final solution. Simulations with observations
of wave structures in artificial emissions were implemented in order to
verify the ability of Stochastic Tomography to infer the parameters of the phenomena.
Tomographic Reconstruction has also been applied to image data
obtained from imagers installed in Monteiro - Brazil (7°50' S, 37°04' W) and Sao
Joao do Cariri - Brazil (7°22' S, 36°31' W). The results of Tomography using
real data were compared with parameters inferred by the wave dispersion relation
of gravity waves using wind data from the meteor radar, temperature data
from satellite TIMED/SABER and data obtained by spectral analysis of the
images. The comparison showed that the observation of the structures from two
imagers do not provide sufficient condition for application of Tomographic Methods.
Simulations have indicated that a set of three observation devices can
provide satisfactory condition for application of Tomographic Reconstruction in
the study of phenomena in MLTI.
