Gravity waves activities in the stratosphere and mesosphere
Transcrição
Gravity waves activities in the stratosphere and mesosphere
12th International Symposium on Equatorial Aeronomy – May 18 - 24, 2008, Crete, Greece Poster P1: Posters for Session S3 (Equatorial Lower- and Middle- Atmosphere Studies) Gravity waves activities in the stratosphere and mesosphere over the Brazilian equatorial region C. M. Wrasse1 , H. Takahashi2, J. Fechine3, A. F. Medeiros3, J. Wickert4, C. M. Denardini2 1: Universidade do Vale do Paraíba, IP&D, São José dos Campos, SP, Brazil ([email protected]) 2: Universidade Federal de Campina Grande, UFCG, Campina Grande, PB, Brazil 3: Instituto Nacional de Pesquisas Espaciais, INPE, São José dos Campos, SP, Brazil 4: GeoForschungsZentrum, GFZ, Potsdam, Germany Gravity wave activities in the stratosphere are deduced from GPS radio occultation temperature profiles obtained by CHAMP satellite. The potential energy profiles are used to analyse the gravity wave activity, seasonal variability and possible wave sources. Mesospheric gravity wave observations, using all sky imager, are compared with the stratospheric potential energy in order to investigate the gravity wave occurrence. The results show that the gravity wave activity over Brazil is strongly correlated with mesosecale synoptics systems that produce deep convection, such as mesoscale convective systems, squall lines, cold fronts and the Intertropical Convergence Zone. 68 12th International Symposium on Equatorial Aeronomy Book of Abstracts May 18 - 24, 24 2008 2008. Crete Crete, Greece Book of Abstracts 12th International Symposium on Equatorial Aeronomy ( ISEA –12 ) ALDEMAR KNOSSOS CONFERENCE HOTEL HERSONISSOS, CRETE, GREECE MAY 18-24, 2008 12th International Symposium on Equatorial Aeronomy – May 18 - 24, 2008, Crete, Greece ISEA-12 Program POSTER P1 POSTERS FOR SESSIONS S3 AND S4 Conveners G. Swenson and D. Pancheva Time: All day Monday and Tuesday, May 19-20 Author Attendance : Coffee breaks, 13:00 – 14:00 and 19:00 to 20:00 POSTER CHAIR GERALD LEHMACHER AND DENNIS RIGGIN S3 - P1- 01 J. O. Adeniyi, S. M. Radicella, I. A. Adimula, O. A. Oladipo, O. Olawepo, and A. A. Willoughby Analysis of March 29 2006 eclipse on the E and F1 region at Ilorin H. C. Aveiro, C. M. Denardini, and M. A. Abdu Planetary waves in the equatorial electrojet obtained by wavelet analysis of magnetometer data M.A. Ayoola, G. I. Olatona, E. O. Oladiran, and J. A. Adedokum The March 29, 2006 solar eclipse as observed at Ibadan, Nigeria Page 64 S3 - P1- 02 Page 64 S3 - P1- 03 Page 64 S3 - P1- 04 Page 65 S3 - P1- 05 Page 65 S3 - P1- 06 Page 66 S3 - P1- 07 page 67 S3 - P1- 08 page 67 S3 - P1- 09 page 68 S4 - P1- 10 page 69 R. A. Buriti, W. K. Hocking, P. P. Batista, A. F. Medeiros, and B. R. Clemesha Observations of zonal and meridional winds and diurnal and semidiurnal tides at 7.4°S by a meteor radar M. Devi, A. K. Barbara, Yu. Ruzhin, A. Depueva, and V. Depuev Role of equatorial anomaly in assertion of low latitude earthquakeperturbations on ionosphere G. K. Kumar, M. V. Ratnam, A. K. Patra, S. V. B. Rao, K. K. Kumar, S. Gurubaran, G. Ramkumar, and D. N. Rao Climatology of low-latitude mesospheric dynamics using Gadanki VHF radar, rocket, and HRDI H. S. S. Sinha, U. Das, R. N. Misra, M. B. Dadhania, S. Banerjee, and N. Dutt Study of mesospheric turbulence using rocket-borne electron density measurements C. M. Wrasse, J. Fechine, H. Takahashi, A. F. Medeiros, J. V. Bageston, and C. M. Denardini Gravity waves sources in the Brazilian equatorial region during SpreadFEX Campaign C. M. Wrasse, H. Takahashi, J. Fechine, A. F. Medeiros, J. Wickert, and C. M. Denardini Gravity waves activities in the stratosphere and mesosphere over the Brazilian equatorial region L. M. Lima, H. Takahashi, B. R. Clemesha, P. P. Batista, and C. M. Wrasse A comparative study of the quasi-2-day wave observed at 7.4°S and 22.7°S, Brazil, during summertime 16
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