Paulino Igo
Institute:
INPE.
Sao José dos Campos, Brazil
STUDY ON VERTICAL PROPAGATION OF THE MEDIUM-SCALE GRAVITY WAVES OBSERVED DURING THE SECOND SPREADFEX CAMPAIGN
Authors: 1 Paulino I., 1 Takahashi H., 2 Vadas S. L., 3 Wrasse C. M., 4 Medeiros A. F., 4 Buriti R. A., 1 Delano G., 5 Makela J. J., 6 Meriwether J.
1 Instituto Nacional de Pesquisas Espaciais, Sao José dos Campos, Brazil.
2 Colorado Research Associates, Boulder, CO, USA.
3 Universidade do Vale do ParaĂba, Sao JosĂ© dos Campos, Brazil.
4 Universidade Federal de Campina Grande, Campina Grande, Brazil.
5 University of Illinois at Urbana-Champaign,
Urbana, IL, USA.
6 Clemson University, Clemson, SC, USA.
Using an all sky airglow imager deployed at Sao Joao do Cariri (7.4S; 36.5W) during the second SpreadFEx campaign from September to November 2009, we observed 26 medium-scale gravity waves in the MLT region. In this work, we present preliminary results of forward and backward ray tracing of these gravity waves in order to study vertical propagation conditions. Mesospheric wind profiles by meteor radar and the thermospheric winds by OI630 nm Fabry–Perot interferometer observed at the same location were used in the model calculation. Preliminary results reveal that some of the waves could propagate up to around 150 km in the thermosphere-ionosphere region. Salient features will be discussed.
Airglow; Gravity Wave; Ray Tracing
