The kinetic to potential energy ratio and spectral separability from high-resolution balloon soundings near the Andes mountains
The ratio R between the spectral kinetic and potential energies as a function of vertical wavenumber has been calculated from high-resolution data obtained with open stratospheric balloons near the Andes Mountains. Two segments of altitude in the troposphere and stratosphere respectively were analyz...
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1999
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00948276_v26_n10_p1413_DeLaTorre http://hdl.handle.net/20.500.12110/paper_00948276_v26_n10_p1413_DeLaTorre |
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paper:paper_00948276_v26_n10_p1413_DeLaTorre2023-06-08T15:09:31Z The kinetic to potential energy ratio and spectral separability from high-resolution balloon soundings near the Andes mountains De La Torre, Alejandro Eduardo Alexander, Pedro M. Balloons Landforms Potential energy Troposphere Atmospheric spectra Computational methods Gravitational effects Kinetic energy Meteorological balloons Potential energy Troposphere Upper atmosphere Balloon sounding Frequency spectra High resolution data Inertial gravity wave Rotational spectra Spectral separability Stratospheric balloon Vertical velocity Meteorological balloons Geophysics Wavenumbers altitude kinetic energy orography potential energy South America The ratio R between the spectral kinetic and potential energies as a function of vertical wavenumber has been calculated from high-resolution data obtained with open stratospheric balloons near the Andes Mountains. Two segments of altitude in the troposphere and stratosphere respectively were analyzed. The ratio values are larger in both the troposphere and stratosphere than those predicted from the separability of wavenumber and frequency spectra. A comparison was made with previous statistical results from soundings over flat terrain extending up to log m (cy/m) = -2.0. Our calculations prolong this interval to -2.0 ≤ log m ≤-0.7. In the stratosphere, a remarkable similarity between that earlier work and ours is observed. This also happens in the troposphere, but only up to log m = -1.4. As suggested by the other authors, the enhanced R values might be explained by the propagation of inertial gravity waves generated in the mountain relief (this is supported by rotational spectra calculated here). Previous evidence in favor of spectral separability obtained by other authors has been extended here for larger wavenumbers by the observed constancy of the ratio between the temperature and vertical velocity spectra. In both the troposphere and the stratosphere, this ratio appears to be fairly uniform and similar to previous results obtained by other authors at lower resolution. Copyright 1999 by the American Geophysical Union. Fil:De La Torre, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Alexander, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1999 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00948276_v26_n10_p1413_DeLaTorre http://hdl.handle.net/20.500.12110/paper_00948276_v26_n10_p1413_DeLaTorre |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Balloons Landforms Potential energy Troposphere Atmospheric spectra Computational methods Gravitational effects Kinetic energy Meteorological balloons Potential energy Troposphere Upper atmosphere Balloon sounding Frequency spectra High resolution data Inertial gravity wave Rotational spectra Spectral separability Stratospheric balloon Vertical velocity Meteorological balloons Geophysics Wavenumbers altitude kinetic energy orography potential energy South America |
| spellingShingle |
Balloons Landforms Potential energy Troposphere Atmospheric spectra Computational methods Gravitational effects Kinetic energy Meteorological balloons Potential energy Troposphere Upper atmosphere Balloon sounding Frequency spectra High resolution data Inertial gravity wave Rotational spectra Spectral separability Stratospheric balloon Vertical velocity Meteorological balloons Geophysics Wavenumbers altitude kinetic energy orography potential energy South America De La Torre, Alejandro Eduardo Alexander, Pedro M. The kinetic to potential energy ratio and spectral separability from high-resolution balloon soundings near the Andes mountains |
| topic_facet |
Balloons Landforms Potential energy Troposphere Atmospheric spectra Computational methods Gravitational effects Kinetic energy Meteorological balloons Potential energy Troposphere Upper atmosphere Balloon sounding Frequency spectra High resolution data Inertial gravity wave Rotational spectra Spectral separability Stratospheric balloon Vertical velocity Meteorological balloons Geophysics Wavenumbers altitude kinetic energy orography potential energy South America |
| description |
The ratio R between the spectral kinetic and potential energies as a function of vertical wavenumber has been calculated from high-resolution data obtained with open stratospheric balloons near the Andes Mountains. Two segments of altitude in the troposphere and stratosphere respectively were analyzed. The ratio values are larger in both the troposphere and stratosphere than those predicted from the separability of wavenumber and frequency spectra. A comparison was made with previous statistical results from soundings over flat terrain extending up to log m (cy/m) = -2.0. Our calculations prolong this interval to -2.0 ≤ log m ≤-0.7. In the stratosphere, a remarkable similarity between that earlier work and ours is observed. This also happens in the troposphere, but only up to log m = -1.4. As suggested by the other authors, the enhanced R values might be explained by the propagation of inertial gravity waves generated in the mountain relief (this is supported by rotational spectra calculated here). Previous evidence in favor of spectral separability obtained by other authors has been extended here for larger wavenumbers by the observed constancy of the ratio between the temperature and vertical velocity spectra. In both the troposphere and the stratosphere, this ratio appears to be fairly uniform and similar to previous results obtained by other authors at lower resolution. Copyright 1999 by the American Geophysical Union. |
| author |
De La Torre, Alejandro Eduardo Alexander, Pedro M. |
| author_facet |
De La Torre, Alejandro Eduardo Alexander, Pedro M. |
| author_sort |
De La Torre, Alejandro Eduardo |
| title |
The kinetic to potential energy ratio and spectral separability from high-resolution balloon soundings near the Andes mountains |
| title_short |
The kinetic to potential energy ratio and spectral separability from high-resolution balloon soundings near the Andes mountains |
| title_full |
The kinetic to potential energy ratio and spectral separability from high-resolution balloon soundings near the Andes mountains |
| title_fullStr |
The kinetic to potential energy ratio and spectral separability from high-resolution balloon soundings near the Andes mountains |
| title_full_unstemmed |
The kinetic to potential energy ratio and spectral separability from high-resolution balloon soundings near the Andes mountains |
| title_sort |
kinetic to potential energy ratio and spectral separability from high-resolution balloon soundings near the andes mountains |
| publishDate |
1999 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00948276_v26_n10_p1413_DeLaTorre http://hdl.handle.net/20.500.12110/paper_00948276_v26_n10_p1413_DeLaTorre |
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