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Titel |
Intercomparisons of HIRDLS, COSMIC and SABER for the detection of stratospheric gravity waves |
VerfasserIn |
C. J. Wright, M. B. Rivas, J. C. Gille |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1867-1381
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Digitales Dokument |
URL |
Erschienen |
In: Atmospheric Measurement Techniques ; 4, no. 8 ; Nr. 4, no. 8 (2011-08-17), S.1581-1591 |
Datensatznummer |
250002076
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Publikation (Nr.) |
copernicus.org/amt-4-1581-2011.pdf |
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Zusammenfassung |
Colocated temperature profiles from the Constellation Observing System for
Meteorology, Ionosphere and Climate (COSMIC), High Resolution Dynamics Limb
Sounder (HIRDLS) and the Sounding of the Atmosphere using Broadband Emission
Radiometry (SABER) mission are compared over the years 2006–2007 to assess
their relative performances for the detection of stratospheric gravity waves.
Two methods are used, one based on a simple comparison of the standard
deviations and correlation coefficients of high-pass filtered profiles from
each instrument, and the other based on Stockwell transform analyses of the
profiles for vertical wavelength and temperature perturbation scales. It is
concluded, when allowing for their different vertical resolution capabilites,
that the three instruments reproduce each other's results for magnitude and
vertical scale of perturbations to within their resolution limits in
approximately 50 % of cases, but with a positive frequency and temperature
bias in the case of COSMIC. This is possibly indicative of a slightly higher
vertical resolution being available to the constellation than estimated. |
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