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Abstract:

Wrong information may be extracted from balloon soundings if neither appropriate interpretation and processing nor evaluations of certain inevitable distortions or artifacts on atmospheric measurements are performed. A numerical code that finds solutions to the dynamical and thermal equations describing an open balloon in the atmosphere is used to develop flight simulations under diverse conditions. The results are then employed to point out that a valid determination of values for diverse variables is intrinsically difficult. It is shown that the distance between the balloon and gondola may be chosen to optimize the information to be obtained from observations obtained during ascent and descent, so that even without an accurate balloon-tracking system, it may be possible to reconstruct horizontal wind fluctuations from the measurements. Vertical air oscillations may be only grossly inferred in some cases. The propagation direction of gravity waves detected during a sounding may be inferred and vertical wavelengths may typically be determined with a 10% accuracy. Air velocity measurements performed during flotation may be used to find shears. © 2005 American Meteorological Society.

Registro:

Documento: Artículo
Título:A numerical study on the interpretation of data from open atmospheric balloon soundings
Autor:Alexander, P.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
Palabras clave:Acoustic waves; Data processing; Gravity waves; Numerical analysis; Optimization; Oscillations; Velocity measurement; Artifacts; Atmospheric measurements; Balloon sounding; Numerical codes; Meteorological balloons; airflow; balloon observation; data interpretation; wind measurement
Año:2005
Volumen:44
Número:3
Página de inicio:357
Página de fin:366
DOI: http://dx.doi.org/10.1175/JAM-2203.1
Título revista:Journal of Applied Meteorology
Título revista abreviado:J. Appl. Meteorol.
ISSN:08948763
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08948763_v44_n3_p357_Alexander

Referencias:

  • Alexander, P., A numerical study of open atmospheric balloon dynamics (2003) Phys. Fluids, 15, pp. 3065-3078
  • Alexander, P., de la Torre, A., The interpretation of saturated spectra as obtained from atmospheric balloon measurements (1999) J. Appl. Meteor., 38, pp. 334-342
  • Alexander, P., de la Torre, A., A program for the simulation and analysis of open atmospheric balloon soundings (2003) Comput. Phys. Commun., 151, pp. 96-120
  • Alexander, P., Cornejo, J., de la Torre, A., The response of an open stratospheric balloon in the presence of inertio-gravity waves (1996) J. Appl. Meteor., 35, pp. 60-68
  • de la Torre, A., Alexander, P., The interpretation of wavelengths and periods as measured from atmospheric balloons (1995) J. Appl. Meteor., 34, pp. 2747-2754
  • de la Torre, A., Teitelbaum, H., Vial, F., Stratospheric and tropospheric gravity wave measurements near the Andes Mountains (1996) J. Atmos. Terr. Phys., 58, pp. 521-530
  • de la Torre, A., Alexander, P., Cornejo, J., A relationship between skin thermal conductivity and gas polytropic index in an open atmospheric balloon (2003) J. Appl. Meteor., 42, pp. 325-330
  • Gardner, C.S., Gardner, N.F., Measurement distortion in aircraft, space shuttle, and balloon observations of atmospheric density and temperature perturbation spectra (1993) J. Geophys. Res., 98, pp. 1023-1033
  • Hines, C.O., Internal atmospheric gravity waves at ionospheric heights (1960) Can. J. Phys., 38, pp. 1441-1481
  • Kitchen, M., Shutts, G.J., Radiosonde observations of large-amplitude gravity waves in the lower and middle stratosphere (1990) J. Geophys. Res., 95, pp. 20451-20455
  • Morris, A.L., Scientific ballooning handbook (1975), p. 478. , NCAR Tech. Note TN-99+IA; Tatom, F.B., King, R.L., Determination constant-volume balloon capabilities for aeronautical research (1976), p. 169. , NASA Contractor Rep. CR-2805

Citas:

---------- APA ----------
(2005) . A numerical study on the interpretation of data from open atmospheric balloon soundings. Journal of Applied Meteorology, 44(3), 357-366.
http://dx.doi.org/10.1175/JAM-2203.1
---------- CHICAGO ----------
Alexander, P. "A numerical study on the interpretation of data from open atmospheric balloon soundings" . Journal of Applied Meteorology 44, no. 3 (2005) : 357-366.
http://dx.doi.org/10.1175/JAM-2203.1
---------- MLA ----------
Alexander, P. "A numerical study on the interpretation of data from open atmospheric balloon soundings" . Journal of Applied Meteorology, vol. 44, no. 3, 2005, pp. 357-366.
http://dx.doi.org/10.1175/JAM-2203.1
---------- VANCOUVER ----------
Alexander, P. A numerical study on the interpretation of data from open atmospheric balloon soundings. J. Appl. Meteorol. 2005;44(3):357-366.
http://dx.doi.org/10.1175/JAM-2203.1