Artículo
Duhau, S.; De Mendoza, D.H. "An explanation of the kilometer scale wave in the equatorial electrojet" (1996) Geophysical Research Letters. 23(16):2185-2188
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Abstract:
Density irregularities in the equatorial electrojet are dominated by kilometer scale waves. In this report we combine a few simple ideas about strong turbulence and non-local effects due to the vertical structure of the equatorial E-region. This leads to a preference for kilometer scale waves. We include the vertical current conservation effect, the eddy turnover, and the growth velocity. We determine the saturation of density perturbation driven by the gradient drift instability. This heuristic theory predicts phenomena consistent with sounding rocket and coherent radar observations. It also gives same general clues about the interaction between the ambient and the turbulent scale flows. Copyright 1996 by the American Geophysical Union.
Registro:
| Documento: | Artículo |
| Título: | An explanation of the kilometer scale wave in the equatorial electrojet |
| Autor: | Duhau, S.; De Mendoza, D.H. |
| Filiación: | Laboratorio de Geofisica, Departamento de Fisica, Ciudad Universitaria, 1428, Buenos Aires, Argentina |
| Palabras clave: | Atmospheric turbulence; E region; Eddy currents; Electric fields; Geomagnetism; Heuristic methods; Integration; Magnetic fields; Radar measurement; Sounding rockets; Turbulent flow; Density perturbation; Equatorial electrojet; Kilometer scale wave; Vertical structure; Atmospheric electricity |
| Año: | 1996 |
| Volumen: | 23 |
| Número: | 16 |
| Página de inicio: | 2185 |
| Página de fin: | 2188 |
| DOI: | http://dx.doi.org/10.1029/96GL02057 |
| Título revista: | Geophysical Research Letters |
| Título revista abreviado: | Geophys. Res. Lett. |
| ISSN: | 00948276 |
| CODEN: | GPRLA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00948276_v23_n16_p2185_Duhau |
Referencias:
- De La Vega, M., Duhau, S., A comparison between the experimentally and theoretically determined equatorial electrojet electric field (1989) J. Geophys. Res., 94, p. 12061
- Fejer, B.G., Farley, D.T., Balsley, B.B., Woodman, R.F., Vertical structure of the VHP backscattering region in the equatorial electrojet and the gradient drift instability (1975) J. Geophys. Res., 80, p. 1313
- Parley, D.T., Fejer, B.G., Balsley, B.B., Radar observations of two-dimensional turbulence in the equatorial electrojet. 3. Nighttime observations of type 1 waves (1978) J. Geophys. Res., 83, p. 5625
- Hamza, A.M., Sudan, R.N., Subgrid modeling of convective turbulence in weakly ionized collisional plasma by renormalization group analysis (1995) J. Geophys. Res., 100, p. 3669
- Kelley, M.C., (1989) The Earth Ionosphere, , Academic Press, In
- Kudeki, E., Farley, D.T., Fejer, B.G., Long wavelength irregularities in the equatorial electrojet (1982) Geophys. Res. Lett., 9, p. 684
- Kudeki, E., Farley, D.T., Fejer, B.G., Theory of spectral asymmetries and nonlinear currents in the equatorial electrojet (1985) J. Geophys. Res., 90, p. 429
- Kudeki, E., Fejer, B.G., Farley, D.T., Hanuise, Ch., The Condor equatorial electrojet campaign: Radar results (1987) J. Geophys. Res., 92, p. 13561
- Kulrsrud, R.M., Sudan, R.N., On the relation between Kolmogorov's theory and direct interaction in two-dimensional plasma turbulence (1982) Comments Plasma Phts. Contr. Fusion, 7, p. 47
- Pfaff, R.F., Kelley, M.C., Fejer, B.G., Maynard, N.C., Brace, L.H., Ledley, B.G., Smith, L.G., Woodman, R.F., Comparative in situ studies of the unstable day-time equatorial E-region (1985) J. Atmos. Terr. Phys., 47, p. 791
- Pfaff, R.F., (1986) Rocket Studies of Plasma Turbulence in the Equatorial and Auroral Electrojets, , Ph.D. thesis, Cornell Univ., Ithaca, N.Y
- Pfaff, R.F., Kelley, M.C., Kudeki, E., Fejer, B.G., Baker, K.D., Electric field and plasma density measurements in the strongly driven daytime equatorial electrojet. 1. the unstable layer and gradient drift waves (1987) J. Geophys. Res., 92, p. 13578
- Pfaff, R.F., Kelley, M.C., Kudeki, E., Fejer, B.G., Baker, K.D., Electric field and plasma density measurements in the strongly driven daytime equatorial electrojet. 2. Two stream waves (1987) J. Geophys. Res., 92, p. 13597
- Prakash, S., Pal, S., Electric fields and electron density irregularities in the equatorial electrojet (1985) J. Atmos. Terr. Phys., 47, p. 853
- Richmond, A.D., Equatorial electrojet-I. Development of a model including winds and instabilities (1973) J. Atmos. Terr. Phys, 35, p. 1083
- Sudan, R.N., Keskinen, M.J., Theory of strongly turbulent two-dimensional convection of low-pressure plasma (1979) Phys. Fluids, 22, p. 2305
- Sudan, R.N., Unified theory of type I and type II irregularities in the equatorial electrojet (1983) J. Geophys. Res., 88, p. 4853
Citas:
---------- APA ----------
Duhau, S. & De Mendoza, D.H. (1996) . An explanation of the kilometer scale wave in the equatorial electrojet. Geophysical Research Letters, 23(16), 2185-2188.http://dx.doi.org/10.1029/96GL02057
---------- CHICAGO ----------
Duhau, S., De Mendoza, D.H. "An explanation of the kilometer scale wave in the equatorial electrojet" . Geophysical Research Letters 23, no. 16 (1996) : 2185-2188.http://dx.doi.org/10.1029/96GL02057
---------- MLA ----------
Duhau, S., De Mendoza, D.H. "An explanation of the kilometer scale wave in the equatorial electrojet" . Geophysical Research Letters, vol. 23, no. 16, 1996, pp. 2185-2188.http://dx.doi.org/10.1029/96GL02057
---------- VANCOUVER ----------
Duhau, S., De Mendoza, D.H. An explanation of the kilometer scale wave in the equatorial electrojet. Geophys. Res. Lett. 1996;23(16):2185-2188.http://dx.doi.org/10.1029/96GL02057
