Useful references

[] Adriani A., A. Cairo, L. Pulvurenti, C. Cardillo, M. Viterbini, F. Di Francesco, and J.P. Pommereau. Aerosol and polar stratospheric clouds observations by laser backascatter-sonde in the frame of the European project Stratospheric Regular Soundings . Annales Geophysicae. 17. 1352-1360. 1999.

[] Held G. and L.F. Nachtigall. Flood-producing Storms in Bauru during February 2001 . CD ROM. Paper SP5_35. 3155-3163. 4-9 de agosto de 2002. Congresso Brasileiro de Meteorologia. 12. Foz de Iguaçu. . Sept 2002.

[] Hertzog A. and F. Vial. A study of the dynamic of the equatorial lower stratosphere by use of ultra long duration balloons. Part II: gravity waves . J. Geophys. Res.. 106. 22745-22761. 2001.

[] Hertzog A., F. Vial, A. Dörnback, S.D. Eckermann, B.M. Knudsen, and J.P. Pommereau. In-situ observations of gravity waves and comparisons with numerical simulations during the Theseo-Solve 2000 campaign . J. Geophys. Res.. 107 (D20). 8292 doi:10.1029/2001JD001025. 2002.

[] Knudsen B.M., J.P. Pommereau, A. Garnier, M. Nunez-Pinharanda, L. Denis, G. Letrenne, M. Durand, and J.M. Rosen. Comparison of stratospheric air parcel trajectories based on different meteorological analyses . J. Geophys. Res.. 106. 3415-3424. 2000.

[] Knudsen B.M., J.P. Pommereau, A. Garnier, M. Nunez-Pinharanda, L. Denis, P. Newman, G. Letrenne, and M. Durand. Accuracy of Analysed Stratospheric Temperatures in the Winter Arctic Vortex from Infra Red Montgolfier Long Duration Balloon Flights. Part II: Results . J. Geophys. Res.. 107 (D20). 10.1029/2001JD001329. 2002.

[] Pommereau J.P., A. Adriani, R.L. Jones, B.M. Knudsen, P. Woods, H. K. Roscoe, D. Williams, and V. Yushkov. The Lagrangian experiment . European Commission Contract ENV4- CT97-0504, Final Report. 2001.

[] Pommereau J.P., F. Goutail, A. Mieville, A. Buivan, and J.C. Lambert. Impact of clouds and tropospheric ozone on ground-based and space borne measurements at the southern tropics . J. Geophys. Res. submitted, 2002.

[] Vial F., A. Hertzog, C.R. Mechoso, C. Basdevant, P. Coquerez, V. Dubourg, and F. Nouel. A study of the dynamics of the equatorial lower stratosphere by use of ultra long duration balloons. Part I: Planetary scales . J. Geophys. Res. 106. 22725-22743. 2001.