Observations of an internal gravity wave in the lower troposphere at Halley, Antarctica
Observations of internal gravity waves in the stably-stratified atmospheric boundary layer at Halley, Antarctica are presented. These were made on 1 February, 1986 and take the form of temperature measurements from a 30 m mast and a Sodar record. The temperature record shows a clearly defined, domin...
Published in: | Boundary-Layer Meteorology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Springer
1987
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/522795/ https://doi.org/10.1007/BF00121862 |
id |
ftnerc:oai:nora.nerc.ac.uk:522795 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:522795 2023-05-15T13:41:43+02:00 Observations of an internal gravity wave in the lower troposphere at Halley, Antarctica King, John C. Mobbs, S.D. Darby, M.S. Rees, J.M. 1987-04 http://nora.nerc.ac.uk/id/eprint/522795/ https://doi.org/10.1007/BF00121862 unknown Springer King, John C. orcid:0000-0003-3315-7568 Mobbs, S.D.; Darby, M.S.; Rees, J.M. 1987 Observations of an internal gravity wave in the lower troposphere at Halley, Antarctica. Boundary-Layer Meteorology, 39 (1-2). 1-13. https://doi.org/10.1007/BF00121862 <https://doi.org/10.1007/BF00121862> Publication - Article PeerReviewed 1987 ftnerc https://doi.org/10.1007/BF00121862 2023-02-04T19:48:04Z Observations of internal gravity waves in the stably-stratified atmospheric boundary layer at Halley, Antarctica are presented. These were made on 1 February, 1986 and take the form of temperature measurements from a 30 m mast and a Sodar record. The temperature record shows a clearly defined, dominant wave period of around 11 min. A high-resolution radiosonde ascent made during the period of wave activity exhibits thin layers of low Richardson number and it is suggested that these are regions of dynamic instability where the waves are generated. A linear stability analysis of the radiosonde data supports this idea. It is argued from simple theoretical ideas and by means of a numerical model that only waves with a wavelength greater than a certain critical value are likely to be observed at the surface. The observations are shown to be consistent with this hypothesis. Article in Journal/Newspaper Antarc* Antarctica Natural Environment Research Council: NERC Open Research Archive Boundary-Layer Meteorology 39 1-2 1 13 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
Observations of internal gravity waves in the stably-stratified atmospheric boundary layer at Halley, Antarctica are presented. These were made on 1 February, 1986 and take the form of temperature measurements from a 30 m mast and a Sodar record. The temperature record shows a clearly defined, dominant wave period of around 11 min. A high-resolution radiosonde ascent made during the period of wave activity exhibits thin layers of low Richardson number and it is suggested that these are regions of dynamic instability where the waves are generated. A linear stability analysis of the radiosonde data supports this idea. It is argued from simple theoretical ideas and by means of a numerical model that only waves with a wavelength greater than a certain critical value are likely to be observed at the surface. The observations are shown to be consistent with this hypothesis. |
format |
Article in Journal/Newspaper |
author |
King, John C. Mobbs, S.D. Darby, M.S. Rees, J.M. |
spellingShingle |
King, John C. Mobbs, S.D. Darby, M.S. Rees, J.M. Observations of an internal gravity wave in the lower troposphere at Halley, Antarctica |
author_facet |
King, John C. Mobbs, S.D. Darby, M.S. Rees, J.M. |
author_sort |
King, John C. |
title |
Observations of an internal gravity wave in the lower troposphere at Halley, Antarctica |
title_short |
Observations of an internal gravity wave in the lower troposphere at Halley, Antarctica |
title_full |
Observations of an internal gravity wave in the lower troposphere at Halley, Antarctica |
title_fullStr |
Observations of an internal gravity wave in the lower troposphere at Halley, Antarctica |
title_full_unstemmed |
Observations of an internal gravity wave in the lower troposphere at Halley, Antarctica |
title_sort |
observations of an internal gravity wave in the lower troposphere at halley, antarctica |
publisher |
Springer |
publishDate |
1987 |
url |
http://nora.nerc.ac.uk/id/eprint/522795/ https://doi.org/10.1007/BF00121862 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
King, John C. orcid:0000-0003-3315-7568 Mobbs, S.D.; Darby, M.S.; Rees, J.M. 1987 Observations of an internal gravity wave in the lower troposphere at Halley, Antarctica. Boundary-Layer Meteorology, 39 (1-2). 1-13. https://doi.org/10.1007/BF00121862 <https://doi.org/10.1007/BF00121862> |
op_doi |
https://doi.org/10.1007/BF00121862 |
container_title |
Boundary-Layer Meteorology |
container_volume |
39 |
container_issue |
1-2 |
container_start_page |
1 |
op_container_end_page |
13 |
_version_ |
1766154523329429504 |