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| Titel |
Aeroelectric structures and turbulence in the atmospheric boundary layer |
| VerfasserIn |
S. V. Anisimov, E. A. Mareev, N. M. Shikhova, M. V. Shatalina, S. V. Galichenko, S. S. Zilitinkevich |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 20, no. 5 ; Nr. 20, no. 5 (2013-10-29), S.819-824 |
| Datensatznummer |
250086058
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| Publikation (Nr.) |
 copernicus.org/npg-20-819-2013.pdf |
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| Zusammenfassung |
| Complex electrical measurements with the use of sodar data show that electric
field pulsation analysis is useful for electrodynamics/turbulence monitoring
under different conditions. In particular, the number of aeroelectric
structures (AES) generated per hour is a convenient measure of the turbulence
intensity. During convectively unstable periods, as many as 5–10 AES form
per hour. Under stable conditions, AES occasionally form as well, indicating
the appearance of occasional mixing events reflected in the electric field
perturbations. AES magnitudes under stable conditions are relatively small,
except in special cases such as high humidity and fog. The analysis of
electric field (EF) spectra gives additional useful information on the
parameters of the atmospheric boundary layer and its turbulence. A rather
sharp change in the spectrum slope takes place in the vicinity of 0.02 Hz
under stable conditions. The characteristic slope of the spectrum and its
change are reproduced in a simple model of EF formation. |
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