Search Results - "Medeiros, A.F."

Comparisons of thermospheric wind and temperature measurements in equatorial Brazil to Whole Atmosphere Model Predictions by Meriwether, J.W., Makela, J.J., Fisher, D.J., Buriti, R.A., Medeiros, A.F., Akmaev, R.A., Fuller-Rowell, T.J., Wu, F.

“…The results from the Whole Atmosphere Model (WAM) at 240km are compared with measurements of equatorial thermospheric winds and temperatures acquired by nearly…”
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Mesospheric gravity waves and ionospheric plasma bubbles observed during the COPEX campaign by Paulino, I., Takahashi, H., Medeiros, A.F., Wrasse, C.M., Buriti, R.A., Sobral, J.H.A., Gobbi, D.

“…During the Conjugate Point Experiment (COPEX) campaign performed at Boa Vista ( 2 . 80 ∘ N ; 60 . 70 ∘ W , dip angle 21 . 7 ∘ N ) from October to December…”
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Forward ray-tracing for medium-scale gravity waves observed during the COPEX campaign by Paulino, I., Takahashi, H., Vadas, S.L., Wrasse, C.M., Sobral, J.H.A., Medeiros, A.F., Buriti, R.A., Gobbi, D.

“…Medium-scale gravity waves (MSGWs) observed during the Conjugate Point Experiment (COPEX) at Boa Vista (2.8°N; 60.7°S, dip angle 21.7°) have been ray-traced…”
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Mesospheric bore events in the equatorial middle atmosphere by Fechine, J., Medeiros, A.F., Buriti, R.A., Takahashi, H., Gobbi, D.

“…An all-sky CCD imager designed to measure wave structure of the OH, O 2b(0,1) and OI557.7 nm airglow emission layers in the mesosphere and lower thermosphere…”
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Midnight reversal of ionospheric plasma bubble eastward velocity to westward velocity during geomagnetically quiettime: Climatology and its model validation by Sobral, José H.A., de Castilho, Vivian M., Abdu, M.A., Takahashi, Hisao, Paulino, I., Gasparelo, Ulisses A.C., Arruda, Daniela C.S., Mascarenhas, Matheus, Zamlutti, C.J., Denardini, C.M., Koga, Daiki, de Medeiros, A.F., Buriti, R.A.

“…In an effort to better understand the dynamics of westward velocities of the nocturnal F-region plasma, the climatology of the westward traveling plasma…”
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Comparison of gravity wave activity observed by airglow imaging at two different latitudes in Brazil by Medeiros, A.F., Buriti, R.A., Machado, E.A., Takahashi, H., Batista, P.P., Gobbi, D., Taylor, M.J.

“…An all-sky CCD imager for the OH, O 2and OI (557.7 nm) airglow emissions was operated at Cachoeira Paulista (CP), Brazil (23°S,45°W), in collaboration with…”
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Response of OH, O2 and OI5577 airglow emissions to the mesospheric bore in the equatorial region of Brazil by Medeiros, A.F., Fechine, J., Buriti, R.A., Takahashi, H., Wrasse, C.M., Gobbi, D.

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Plasma bubble monitoring by TEC map and 630nm airglow image by Takahashi, H., Wrasse, C.M., Otsuka, Y., Ivo, A., Gomes, V., Paulino, I., Medeiros, A.F., Denardini, C.M., Sant’Anna, N., Shiokawa, K.

“…Equatorial ionosphere plasma bubbles over the South American continent were successfully observed by mapping the total electron content (TECMAP) using data…”
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Case study of convective instability observed in airglow images over the Northeast of Brazil by Carvalho, A.J.A., Paulino, I., Medeiros, A.F., Lima, L.M., Buriti, R.A., Paulino, A.R., Wrasse, C.M., Takahashi, H.

“…An intense activity of ripples during the nighttime was observed in airglow images over São João do Cariri (36.5°W, 7.4°S) on 10 October 2004 which lasted for…”
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Longitudinal results in a school-based intervention program for obese children by Aires, L., Alves, A.I., Silva, G., Medeiros, A.F., Nascimento, H., Catarino, C., Rocha-Pereira, P., Martins, C., Ribeiro, J.C., Santos-Silva, A., Mota, J., Belo, L.

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Sudden stratospheric warming effects on the mesospheric tides and 2-day wave dynamics at 7°S by Lima, L.M., Alves, E.O., Batista, P.P., Clemesha, B.R., Medeiros, A.F., Buriti, R.A.

“…The dynamics of the equatorial mesosphere have been investigated during austral summers of 2004–2005, 2005–2006 and 2006–2007 from meteor radar measurements…”
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Common Bean Landrace Jalo Listras Pretas Is the Source of a New Andean Anthracnose Resistance Gene by Gonçalves-Vidigal, M.C, Vidigal Filho, Pedro S, Medeiros, A.F, Pastor-Corrales, M.A

“…Novel sources of resistance are continuously needed to combat anthracnose disease in common bean (Phaseolus vulgaris L.) caused by the hypervariable pathogen…”
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Experimental investigation on the effect of slat geometrical configurations on aerodynamic noise by Pagani, Carlos C., Souza, Daniel S., Medeiros, Marcello A.F.

“…Relatively few studies have addressed the slat noise dependence on gap, overlap and deflection angle, although slat noise level and spectral content are topics…”
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Optical observations of plasma bubble westward drifts over Brazilian tropical region by Paulino, I., Medeiros, A.F., Buriti, R.A., Sobral, J.H.A., Takahashi, H., Gobbi, D.

“…Previous studies based on experimental observations of plasma bubbles occurrences over the Brazilian region revealed that they often propagate eastward in the…”
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The effect of incoming boundary layer thickness and Mach number on linear and nonlinear Rossiter modes in open cavity flows by Mathias, Marlon Sproesser, Medeiros, Marcello A. F.

“…The Rossiter modes of an open cavity were studied using bi-global linear analysis, local instability analysis and nonlinear numerical simulations. Rossiter…”
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Reverse ray tracing of the mesospheric gravity waves observed at 23°S (Brazil) and 7°S (Indonesia) in airglow imagers by Wrasse, C.M., Nakamura, T., Tsuda, T., Takahashi, H., Medeiros, A.F., Taylor, M.J., Gobbi, D., Salatun, A., Suratno, Achmad, E., Admiranto, A.G.

“…Gravity wave observations using all-sky CCD imager to measure the airglow OH, O 2, and OI emissions were made at Cachoeira Paulista (22.7°S, 45°W) (CP), at the…”
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Space weather in the thermospheric–ionospheric domain over the Brazilian region: Climatology of ionospheric plasma bubbles in the subequatorial and low-latitude region by Koga, D., Sobral, J.H.A., Abdu, M.A., de Castilho, V.M., Mascarenhas, M., Arruda, D.C.S., Zamlutti, C.J., Takahashi, H., Medeiros, A.F., Buriti, R.A.

“…The climatology of ionospheric plasma bubbles is studied here by means of a comparison of the frequency of occurrence of the spread-F/plasma bubble events over…”
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Theoretical and experimental zonal drift velocities of the ionospheric plasma bubbles over the Brazilian region by Arruda, Daniela C.S., Sobral, J.H.A., Abdu, M.A., Castilho, Vivian M., Takahashi, H., Medeiros, A.F., Buriti, R.A.

“…This work presents equatorial ionospheric plasma bubble zonal drift velocity observations and their comparison with model calculations. The bubble zonal…”
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Response of OH, O 2 and OI5577 airglow emissions to the mesospheric bore in the equatorial region of Brazil by Medeiros, A.F., Fechine, J., Buriti, R.A., Takahashi, H., Wrasse, C.M., Gobbi, D.

“…An all-sky CCD imager capable of measuring wave structure in the airglow OH, O 2 and OI (557.7 nm) emissions was operated in the equatorial region at São João…”
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Equatorial planetary waves in the mesosphere observed by airglow periodic oscillations by Buriti, R.A., Takahashi, H., Lima, L.M., Medeiros, A.F.

“…Planetary scale waves in the equatorial upper mesosphere were studied by measuring the airglow OI557.7 nm, O 2b(0,1) and OH(6,2) emission intensities and OH…”
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