Articles | Volume 15, issue 14
Research article
30 Jul 2015
Research article |  | 30 Jul 2015

Global distributions of overlapping gravity waves in HIRDLS data

C. J. Wright, S. M. Osprey, and J. C. Gille

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Cited articles

Alexander, M. J.: Interpretations of observed climatological patterns in stratospheric gravity wave variance, J. Geophys. Res.-Atmos., 103, 8627–8640,, 1998.
Alexander, M. J., Gille, J., Cavanaugh, C., Coffey, M., Craig, C., Dean, V., Eden, T., Francis, G., Halvorson, C., Hannigan, J., Khosravi, R., Kinneson, D., Lee, H., Massie, S., Nardi, B., and Lambert, A.: Global Estimates of Gravity Wave Momentum Flux from High Resolution Dynamics Limb Sounder (HIRDLS) Observations, J. Geophys. Res.-Atmos., 113, D15S18,, 2008.
Alexander, M. J., Geller, M., McLandress, C., Polavarapu, S., Preusse, P., Sassi, F., Sato, K., Eckermann, S., Ern, M., Hertzog, A., Kawatani, Y., Pulido, M., Shaw, T. A., Sigmond, M., Vincent, R., and Watanabe, S.: Recent developments in gravity-wave effects in climate models and the global distribution of gravity-wave momentum flux from observations and models, Q. J. Roy. Meteorol. Soc., 136, 1103–1124,, 2010.
Ern, M. and Preusse, P.: Gravity wave momentum flux spectra observed from satellite in the summertime subtropics: Implications for global modeling, Geophys. Res. Lett., 39, L15810,, 2012.
Ern, M., Preusse, P., Alexander, M., and Warner, C. D.: Absolute values of gravity wave momentum flux derived from satellite data, J. Geophys. Res.-Atmos., 109, D20103,, 2004.
Short summary
Data from the HIRDLS instrument are used to study the numerical variability of gravity waves. Observed distributions are dominated by long-vertical-short-horizontal-wavelength waves, with a similar spectral form at all locations. We further divide our data into subspecies by wavelength, and investigate variation in these subspecies in time and space. We show that the variations associated with particular phenomena arise due to changes in specific parts of the spectrum.
Final-revised paper