Articles with "gravity waves" as a keyword



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Neutral wind and density perturbations in the thermosphere created by gravity waves observed by the TIDDBIT sounder

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016ja023828

Abstract: In this paper, we study the 10 traveling ionospheric disturbances (TIDs) observed at zobs∼283 km by the TIDDBIT ionospheric sounder on 30 October 2007 at 0400-0700 UT near Wallops Island, USA. These TIDs propagated northwest/northward,… read more here.

Keywords: wind; gravity waves; neutral wind; density ... See more keywords
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Oblique propagation of monsoon gravity waves during the northern hemisphere 2007 summer

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016jd026008

Abstract: We present a combination of satellite observation and high-resolution model output to understand monsoon convection as a source of high-latitude mesospheric gravity waves (GWs). The GWs generated over the Northern Hemisphere (NH) monsoon region during… read more here.

Keywords: gravity waves; high latitude; monsoon; summer ... See more keywords
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Characteristics of mesospheric gravity waves over Antarctica observed by Antarctic Gravity Wave Instrument Network imagers using 3‐D spectral analyses

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016jd026217

Abstract: We have obtained horizontal phase velocity distributions of the gravity waves around 90 km from four Antarctic airglow imagers, which belong to an international airglow imager/instrument network known as ANGWIN (Antarctic Gravity Wave Instrument Network).… read more here.

Keywords: gravity; gravity waves; instrument network; gravity wave ... See more keywords
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Influence of parameterized small‐scale gravity waves on the migrating diurnal tide in Earth's thermosphere

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017ja024089

Abstract: Effects of subgrid-scale gravity waves (GWs) on the diurnal migrating tides are investigated from the mesosphere to the upper thermosphere for September equinox conditions, using a general circulation model coupled with the extended spectral nonlinear… read more here.

Keywords: gravity waves; correlation; harmonics; scale gravity ... See more keywords
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Variations of global gravity waves derived from 14 years of SABER temperature observations

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017jd026604

Abstract: The global gravity wave (GW) potential energy (PE) per unit mass is derived from SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) temperatures profiles over the past 14 years (2002-2015). Since the SABER data… read more here.

Keywords: trend; gravity waves; variations global; global gravity ... See more keywords
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Does Strong Tropospheric Forcing Cause Large-Amplitude Mesospheric Gravity Waves? A DEEPWAVE Case Study

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017jd027371

Abstract: The DEEPWAVE (deep-propagating wave experiment) campaign was designed for an airborne and ground-based exploration of gravity waves from their tropospheric sources up to their dissipation at high altitudes. It was performed in and around New… read more here.

Keywords: amplitude mesospheric; research; gravity waves; flight ... See more keywords
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Forced gravity waves and the tropospheric response to convection

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Published in 2018 at "Quarterly Journal of the Royal Meteorological Society"

DOI: 10.1002/qj.3278

Abstract: We present theoretical work directed toward improving our understanding of the mesoscale influence of deep convection on its tropospheric environment through forced gravity waves. From the linear, hydrostatic, non-rotating, incompressible equations, we find a two-dimensional… read more here.

Keywords: forced gravity; gravity waves; response convection; convection ... See more keywords
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The “striated delta” signature of gravity waves generated near the jet stream during rapid extratropical cyclogenesis

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Published in 2021 at "Quarterly Journal of the Royal Meteorological Society"

DOI: 10.1002/qj.4145

Abstract: Distinctive, triangular‐shaped “striated delta” clouds provide a novel framework for better understanding large‐amplitude gravity wave generation near upper‐tropospheric jets and fronts during rapid extratropical cyclogenesis, as the transverse cloud‐top banding is thought to be the… read more here.

Keywords: striated delta; gravity; extratropical cyclogenesis; rapid extratropical ... See more keywords
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Simulation of Propagation of Acoustic-Gravity Waves Generated by Tropospheric Front Instabilities into the Upper Atmosphere

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Published in 2020 at "Pure and Applied Geophysics"

DOI: 10.1007/s00024-020-02569-y

Abstract: A numerical model of the propagation of acoustic-gravity waves excited by pressure fluctuations on the Earth’s surface is developed. Propagation of acoustic-gravity waves generated by instabilities of tropospheric fronts into the upper atmosphere is simulated.… read more here.

Keywords: gravity waves; upper atmosphere; propagation acoustic; acoustic gravity ... See more keywords
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A Three-dimensionalWave Activity Flux of Inertia–Gravity Waves and Its Application to a Rainstorm Event

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Published in 2018 at "Advances in Atmospheric Sciences"

DOI: 10.1007/s00376-018-8018-5

Abstract: A three-dimensional transformed Eulerian-mean (3D TEM) equation under a non-hydrostatic and non-geostrophic assumption is deduced in this study. The vertical component of the 3D wave activity flux deduced here is the primary difference from previous… read more here.

Keywords: gravity waves; inertia gravity; activity flux;
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Impacts of climate changes on ocean surface gravity waves over the eastern Canadian shelf

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Published in 2017 at "Ocean Dynamics"

DOI: 10.1007/s10236-017-1046-3

Abstract: A numerical study is conducted to investigate the impact of climate changes on ocean surface gravity waves over the eastern Canadian shelf (ECS). The “business-as-usual” climate scenario known as Representative Concentration Pathway RCP8.5 is considered… read more here.

Keywords: changes ocean; ocean surface; gravity waves; surface ... See more keywords