Implications for atmospheric dynamics derived from global observations of gravity wave momentum flux in strato- and mesosphere
In this work absolute values of gravity wave (GW) momentum flux are derived from global temperature measurements by the satellite instruments High Resolution Dynamics Limb Sounder (HIRDLS) and Sounding of the Atmosphere using Broadband Emission Radiometry (SABER). Momentum fluxes in the stratosphere...
Published in: | Journal of Geophysical Research |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Union
2011
|
Subjects: | |
Online Access: | https://juser.fz-juelich.de/record/17008 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-17008%22 |
id |
ftfzjuelichnvdb:oai:juser.fz-juelich.de:17008 |
---|---|
record_format |
openpolar |
spelling |
ftfzjuelichnvdb:oai:juser.fz-juelich.de:17008 2024-09-15T18:31:18+00:00 Implications for atmospheric dynamics derived from global observations of gravity wave momentum flux in strato- and mesosphere Ern, M. Preusse, P. Gille, J.C. Hepplewhite, C.L. Mlynczak, M.G. Russell, J.M. III Riese, M. DE 2011 https://juser.fz-juelich.de/record/17008 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-17008%22 eng eng Union info:eu-repo/semantics/altIdentifier/issn/0022-1406 info:eu-repo/semantics/altIdentifier/wos/WOS:000295869000002 info:eu-repo/semantics/altIdentifier/doi/10.1029/2011JD015821 info:eu-repo/semantics/altIdentifier/issn/0148-0227 info:eu-repo/semantics/altIdentifier/hdl/2128/20917 https://juser.fz-juelich.de/record/17008 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-17008%22 info:eu-repo/semantics/openAccess Journal of geophysical research / Atmospheres 116, D19107 (2011). doi:10.1029/2011JD015821 info:eu-repo/classification/ddc/550 J info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2011 ftfzjuelichnvdb https://doi.org/10.1029/2011JD015821 2024-08-05T23:55:47Z In this work absolute values of gravity wave (GW) momentum flux are derived from global temperature measurements by the satellite instruments High Resolution Dynamics Limb Sounder (HIRDLS) and Sounding of the Atmosphere using Broadband Emission Radiometry (SABER). Momentum fluxes in the stratosphere are derived for both instruments and for SABER in the whole mesosphere. The large-scale atmospheric background state is removed by a two-dimensional Fourier decomposition in longitude and time, covering even planetary-scale waves with periods as short as 1-2 days. Therefore, it is possible to provide global distributions of GW momentum flux from observations for the first time in the mesosphere. Seasonal as well as longer-term variations of the global momentum flux distribution are discussed. GWs likely contribute significantly to the equatorward tilt of the polar night jet and to the poleward tilt of the summertime mesospheric jet. Our results suggest that GWs can undergo large latitudinal shifts while propagating upward. In particular, GWs generated by deep convection in the subtropical monsoon regions probably contribute significantly to the mesospheric summertime wind reversal at mid-and high latitudes. Variations in the GW longitudinal distribution caused by those convectively generated GWs are still observed in the mesosphere and could be important for the generation of the quasi two-day wave. Indications for quasi-biennial oscillation (QBO) induced variations of GW momentum flux are found in the subtropics. Also variations at time scales of about one 11-year solar cycle are observed and might indicate a negative correlation between solar flux and GW momentum flux. Article in Journal/Newspaper polar night Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) Journal of Geophysical Research 116 D19 |
institution |
Open Polar |
collection |
Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) |
op_collection_id |
ftfzjuelichnvdb |
language |
English |
topic |
info:eu-repo/classification/ddc/550 J |
spellingShingle |
info:eu-repo/classification/ddc/550 J Ern, M. Preusse, P. Gille, J.C. Hepplewhite, C.L. Mlynczak, M.G. Russell, J.M. III Riese, M. Implications for atmospheric dynamics derived from global observations of gravity wave momentum flux in strato- and mesosphere |
topic_facet |
info:eu-repo/classification/ddc/550 J |
description |
In this work absolute values of gravity wave (GW) momentum flux are derived from global temperature measurements by the satellite instruments High Resolution Dynamics Limb Sounder (HIRDLS) and Sounding of the Atmosphere using Broadband Emission Radiometry (SABER). Momentum fluxes in the stratosphere are derived for both instruments and for SABER in the whole mesosphere. The large-scale atmospheric background state is removed by a two-dimensional Fourier decomposition in longitude and time, covering even planetary-scale waves with periods as short as 1-2 days. Therefore, it is possible to provide global distributions of GW momentum flux from observations for the first time in the mesosphere. Seasonal as well as longer-term variations of the global momentum flux distribution are discussed. GWs likely contribute significantly to the equatorward tilt of the polar night jet and to the poleward tilt of the summertime mesospheric jet. Our results suggest that GWs can undergo large latitudinal shifts while propagating upward. In particular, GWs generated by deep convection in the subtropical monsoon regions probably contribute significantly to the mesospheric summertime wind reversal at mid-and high latitudes. Variations in the GW longitudinal distribution caused by those convectively generated GWs are still observed in the mesosphere and could be important for the generation of the quasi two-day wave. Indications for quasi-biennial oscillation (QBO) induced variations of GW momentum flux are found in the subtropics. Also variations at time scales of about one 11-year solar cycle are observed and might indicate a negative correlation between solar flux and GW momentum flux. |
format |
Article in Journal/Newspaper |
author |
Ern, M. Preusse, P. Gille, J.C. Hepplewhite, C.L. Mlynczak, M.G. Russell, J.M. III Riese, M. |
author_facet |
Ern, M. Preusse, P. Gille, J.C. Hepplewhite, C.L. Mlynczak, M.G. Russell, J.M. III Riese, M. |
author_sort |
Ern, M. |
title |
Implications for atmospheric dynamics derived from global observations of gravity wave momentum flux in strato- and mesosphere |
title_short |
Implications for atmospheric dynamics derived from global observations of gravity wave momentum flux in strato- and mesosphere |
title_full |
Implications for atmospheric dynamics derived from global observations of gravity wave momentum flux in strato- and mesosphere |
title_fullStr |
Implications for atmospheric dynamics derived from global observations of gravity wave momentum flux in strato- and mesosphere |
title_full_unstemmed |
Implications for atmospheric dynamics derived from global observations of gravity wave momentum flux in strato- and mesosphere |
title_sort |
implications for atmospheric dynamics derived from global observations of gravity wave momentum flux in strato- and mesosphere |
publisher |
Union |
publishDate |
2011 |
url |
https://juser.fz-juelich.de/record/17008 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-17008%22 |
op_coverage |
DE |
genre |
polar night |
genre_facet |
polar night |
op_source |
Journal of geophysical research / Atmospheres 116, D19107 (2011). doi:10.1029/2011JD015821 |
op_relation |
info:eu-repo/semantics/altIdentifier/issn/0022-1406 info:eu-repo/semantics/altIdentifier/wos/WOS:000295869000002 info:eu-repo/semantics/altIdentifier/doi/10.1029/2011JD015821 info:eu-repo/semantics/altIdentifier/issn/0148-0227 info:eu-repo/semantics/altIdentifier/hdl/2128/20917 https://juser.fz-juelich.de/record/17008 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-17008%22 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2011JD015821 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
D19 |
_version_ |
1810472940043501568 |