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Titel |
Comment on "Reinterpreting aircraft measurement in anisotropic scaling turbulence" by Lovejoy et al. (2009) |
VerfasserIn |
E. Lindborg, K. K. Tung, G. D. Nastrom, J. Y. N. Cho, K. S. Gage |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1680-7316
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Digitales Dokument |
URL |
Erschienen |
In: Atmospheric Chemistry and Physics ; 10, no. 3 ; Nr. 10, no. 3 (2010-02-08), S.1401-1402 |
Datensatznummer |
250008051
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Publikation (Nr.) |
copernicus.org/acp-10-1401-2010.pdf |
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Zusammenfassung |
Recently, Lovejoy et al. (2009) argued that the steep ~k−3
atmospheric kinetic energy spectrum at synoptic scales (≥1000 km)
observed by aircraft is a spurious artefact of aircraft following isobars
instead of isoheights. Without taking into account the earth's rotation they
hypothesise that the horizontal atmospheric energy spectrum should scale as
k−5/3 at all scales. We point out that the approximate k−3-spectrum
at synoptic scales has been observed by a number of non-aircraft means since the
1960s and that general circulation models and other current models have successfully
produced this spectrum. We also argue that
the vertical movements of the aircraft are far too small to cause any strong
effect on the measured spectrum at synoptic scales. |
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