Vertical temperature and density patterns in the Arctic mesosphere analyzed as gravity waves
Rocket soundings conducted from high latitude sites in the Arctic mesosphere are described. Temperature and wind profiles and one density profile were observed independently to obtain the thermodynamic structure, the wind structure, and their interdependence in the mesosphere. Temperature profiles f...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19750023548 2023-05-15T14:55:14+02:00 Vertical temperature and density patterns in the Arctic mesosphere analyzed as gravity waves Theon, J. S. Eberstein, I. J. Unclassified, Unlimited, Publicly available Mar 1, 1975 application/pdf http://hdl.handle.net/2060/19750023548 unknown Document ID: 19750023548 Accession ID: 75N31621 http://hdl.handle.net/2060/19750023548 No Copyright CASI GEOPHYSICS NASA-TM-X-70962 X-911-75-69 1975 ftnasantrs 2019-07-21T11:12:07Z Rocket soundings conducted from high latitude sites in the Arctic mesosphere are described. Temperature and wind profiles and one density profile were observed independently to obtain the thermodynamic structure, the wind structure, and their interdependence in the mesosphere. Temperature profiles from all soundings were averaged, and a smooth curve (or series of smooth curves) drawn through the points. A hydrostatic atmosphere based on the average, measured temperature profile was computed, and deviations from the mean atmosphere were analyzed in terms of gravity wave theory. The vertical wavelengths of the deviations were 10-20 km, and the wave amplitudes slowly increased with height. The experimental data were matched by calculated gravity waves having a period of 15-20 minutes and a horizontal wavelength of 60-80 km. The wind measurements are consistent with the thermodynamic measurements. The results also suggest that gravity waves travel from East to West with a horizontal phase velocity of approximately 60 m sec-1. Other/Unknown Material Arctic NASA Technical Reports Server (NTRS) Arctic |
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Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
GEOPHYSICS |
spellingShingle |
GEOPHYSICS Theon, J. S. Eberstein, I. J. Vertical temperature and density patterns in the Arctic mesosphere analyzed as gravity waves |
topic_facet |
GEOPHYSICS |
description |
Rocket soundings conducted from high latitude sites in the Arctic mesosphere are described. Temperature and wind profiles and one density profile were observed independently to obtain the thermodynamic structure, the wind structure, and their interdependence in the mesosphere. Temperature profiles from all soundings were averaged, and a smooth curve (or series of smooth curves) drawn through the points. A hydrostatic atmosphere based on the average, measured temperature profile was computed, and deviations from the mean atmosphere were analyzed in terms of gravity wave theory. The vertical wavelengths of the deviations were 10-20 km, and the wave amplitudes slowly increased with height. The experimental data were matched by calculated gravity waves having a period of 15-20 minutes and a horizontal wavelength of 60-80 km. The wind measurements are consistent with the thermodynamic measurements. The results also suggest that gravity waves travel from East to West with a horizontal phase velocity of approximately 60 m sec-1. |
format |
Other/Unknown Material |
author |
Theon, J. S. Eberstein, I. J. |
author_facet |
Theon, J. S. Eberstein, I. J. |
author_sort |
Theon, J. S. |
title |
Vertical temperature and density patterns in the Arctic mesosphere analyzed as gravity waves |
title_short |
Vertical temperature and density patterns in the Arctic mesosphere analyzed as gravity waves |
title_full |
Vertical temperature and density patterns in the Arctic mesosphere analyzed as gravity waves |
title_fullStr |
Vertical temperature and density patterns in the Arctic mesosphere analyzed as gravity waves |
title_full_unstemmed |
Vertical temperature and density patterns in the Arctic mesosphere analyzed as gravity waves |
title_sort |
vertical temperature and density patterns in the arctic mesosphere analyzed as gravity waves |
publishDate |
1975 |
url |
http://hdl.handle.net/2060/19750023548 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
CASI |
op_relation |
Document ID: 19750023548 Accession ID: 75N31621 http://hdl.handle.net/2060/19750023548 |
op_rights |
No Copyright |
_version_ |
1766327014979010560 |