Thermospheric gravity waves near the source - Comparison of variations in neutral temperature and vertical velocity at Sondre Stromfjord
Theoretical predictions of thermospheric gravity wave oscillations are compared with observed neutral temperatures and velocities. The data were taken in February 1983 using a Fabry-Perot interferometer located on Greenland, close to impulse heat sources in the auroral oval. The phenomenon was model...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19840065462 2023-05-15T16:28:47+02:00 Thermospheric gravity waves near the source - Comparison of variations in neutral temperature and vertical velocity at Sondre Stromfjord Herrero, F. A. Mayr, H. G. Harris, I. Varosi, F. Meriwether, J. W., Jr. Unclassified, Unlimited, Publicly available Sep 1, 1984 http://ntrs.nasa.gov/search.jsp?R=19840065462 unknown http://ntrs.nasa.gov/search.jsp?R=19840065462 Accession ID: 84A48249 Copyright Other Sources 46 Geophysical Research Letters; 11; 939-942 1984 ftnasantrs 2012-02-15T15:56:55Z Theoretical predictions of thermospheric gravity wave oscillations are compared with observed neutral temperatures and velocities. The data were taken in February 1983 using a Fabry-Perot interferometer located on Greenland, close to impulse heat sources in the auroral oval. The phenomenon was modeled in terms of linearized equations of motion of the atmosphere on a slowly rotating sphere. Legendre polynomials were used as eigenfunctions and the transfer function amplitude surface was characterized by maxima in the wavenumber frequency plane. Good agreement for predicted and observed velocities and temperatures was attained in the 250-300 km altitude. The amplitude of the vertical velocity, however, was not accurately predicted, nor was the temperature variability. The vertical velocity did exhibit maxima and minima in response to corresponding temperature changes. Other/Unknown Material Greenland Sondre Stromfjord NASA Technical Reports Server (NTRS) Greenland |
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NASA Technical Reports Server (NTRS) |
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46 Herrero, F. A. Mayr, H. G. Harris, I. Varosi, F. Meriwether, J. W., Jr. Thermospheric gravity waves near the source - Comparison of variations in neutral temperature and vertical velocity at Sondre Stromfjord |
topic_facet |
46 |
description |
Theoretical predictions of thermospheric gravity wave oscillations are compared with observed neutral temperatures and velocities. The data were taken in February 1983 using a Fabry-Perot interferometer located on Greenland, close to impulse heat sources in the auroral oval. The phenomenon was modeled in terms of linearized equations of motion of the atmosphere on a slowly rotating sphere. Legendre polynomials were used as eigenfunctions and the transfer function amplitude surface was characterized by maxima in the wavenumber frequency plane. Good agreement for predicted and observed velocities and temperatures was attained in the 250-300 km altitude. The amplitude of the vertical velocity, however, was not accurately predicted, nor was the temperature variability. The vertical velocity did exhibit maxima and minima in response to corresponding temperature changes. |
format |
Other/Unknown Material |
author |
Herrero, F. A. Mayr, H. G. Harris, I. Varosi, F. Meriwether, J. W., Jr. |
author_facet |
Herrero, F. A. Mayr, H. G. Harris, I. Varosi, F. Meriwether, J. W., Jr. |
author_sort |
Herrero, F. A. |
title |
Thermospheric gravity waves near the source - Comparison of variations in neutral temperature and vertical velocity at Sondre Stromfjord |
title_short |
Thermospheric gravity waves near the source - Comparison of variations in neutral temperature and vertical velocity at Sondre Stromfjord |
title_full |
Thermospheric gravity waves near the source - Comparison of variations in neutral temperature and vertical velocity at Sondre Stromfjord |
title_fullStr |
Thermospheric gravity waves near the source - Comparison of variations in neutral temperature and vertical velocity at Sondre Stromfjord |
title_full_unstemmed |
Thermospheric gravity waves near the source - Comparison of variations in neutral temperature and vertical velocity at Sondre Stromfjord |
title_sort |
thermospheric gravity waves near the source - comparison of variations in neutral temperature and vertical velocity at sondre stromfjord |
publishDate |
1984 |
url |
http://ntrs.nasa.gov/search.jsp?R=19840065462 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Sondre Stromfjord |
genre_facet |
Greenland Sondre Stromfjord |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19840065462 Accession ID: 84A48249 |
op_rights |
Copyright |
_version_ |
1766018464984596480 |