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000040890 084__ $$2WoS$$aEngineering, Aerospace
000040890 084__ $$2WoS$$aAstronomy & Astrophysics
000040890 084__ $$2WoS$$aGeosciences, Multidisciplinary
000040890 084__ $$2WoS$$aMeteorology & Atmospheric Sciences
000040890 1001_ $$0P:(DE-HGF)0$$aWu, D. L.$$b0
000040890 245__ $$aRemote sounding of atmospheric gravity waves with satellite limb and nadir techniques
000040890 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2006
000040890 300__ $$a2269 - 2277
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000040890 440_0 $$09884$$aAdvances in Space Research$$v37$$x0273-1177$$y12
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000040890 520__ $$aRecent advances in satellite techniques hold great potential for mapping global gravity wave (GW) processes at various altitudes. Poor understanding of small-scale GWs has been a major limitation to numerical climate and weather models for making reliable forecasts. Observations of short-scale features have important implication for validating and improving future high-resolution numerical models. This paper summarizes recent GW observations and sensitivities from several satellite instruments, including MLS, AMSU-A, AIRS, GPS, and CLAES. It is shown in an example that mountain waves with horizontal wavelengths as short as similar to 30 km now can be observed by AIRS, reflecting the superior horizontal resolution in these modern satellite instruments. Our studies show that MLS, AMSU-A and AIRS observations reveal similar GW characteristics, with the observed variances correlated well with background winds. As a complementary technique, limb sounding instruments like CRISTA, CLAES, and GPS can detect GWs with better vertical but poorer horizontal resolutions. To resolve different parts of the broad GW spectrum, both satellite limb and nadir observing techniques are needed, and a better understanding of GW complexities requires joint analyses of these data and dedicated hieh-resolution model simulations. (c) 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.
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000040890 65320 $$2Author$$agravity waves
000040890 65320 $$2Author$$asatellite observations
000040890 65320 $$2Author$$ainstrument filter
000040890 65320 $$2Author$$awave sources
000040890 7001_ $$0P:(DE-Juel1)VDB12001$$aPreusse, P.$$b1$$uFZJ
000040890 7001_ $$0P:(DE-HGF)0$$aEckermann, S. D.$$b2
000040890 7001_ $$0P:(DE-HGF)0$$aJiang, J. H.$$b3
000040890 7001_ $$0P:(DE-HGF)0$$ade la Torre, M.$$b4
000040890 7001_ $$0P:(DE-HGF)0$$aJuarez, L. C.$$b5
000040890 7001_ $$0P:(DE-HGF)0$$aWang, D. Y.$$b6
000040890 773__ $$0PERI:(DE-600)2023311-5$$a10.1016/j.asr.2005.07.031$$gVol. 37, p. 2269 - 2277$$p2269 - 2277$$q37<2269 - 2277$$tAdvances in space research$$v37$$x0273-1177$$y2006
000040890 8567_ $$uhttp://dx.doi.org/10.1016/j.asr.2005.07.031
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