N<sub>2</sub> and M<sub>2</sub> lunar tides: atmospheric resonance revisited
A numerical model has been used to calculate the atmospheric response to forcing at periods in the region of 12-13.5 h. The results show that the response is enhanced in the neighbourhood of 13 h. These results have been compared with lunar tidal analyses of mesospheric wind data and geomagnetic var...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
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| Series: | Annales Geophysicae |
| Online Access: | http://www.ann-geophys.net/14/826/1996/angeo-14-826-1996.html |
| _version_ | 1811299253052506112 |
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| author | C. E. Meek A. H. Manson J. M. Forbes R. J. Stening D. M. Schlapp R. A. Vincent |
| author_facet | C. E. Meek A. H. Manson J. M. Forbes R. J. Stening D. M. Schlapp R. A. Vincent |
| author_sort | C. E. Meek |
| collection | DOAJ |
| description | A numerical model has been used to calculate the atmospheric response to forcing at periods in the region of 12-13.5 h. The results show that the response is enhanced in the neighbourhood of 13 h. These results have been compared with lunar tidal analyses of mesospheric wind data and geomagnetic variations at a number of stations. It is found that the N<sub>2</sub> lunar tidal component (period 12.66 h) is significantly enhanced relative to the main lunar tidal component M<sub>2</sub> (period 12.42 h) in both types of data, compared with what would be expected from the gravitational tidal potential. This supports the predictions of the numerical model. An appreciable phase shift is also found in the experimental data between the N<sub>2</sub> and M<sub>2</sub> tides, agreeing in sense with what would be expected for a resonance at a period around 13 h. |
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| institution | Directory Open Access Journal |
| issn | 0992-7689 1432-0576 |
| language | English |
| last_indexed | 2024-04-13T06:32:28Z |
| publisher | Copernicus Publications |
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| series | Annales Geophysicae |
| spelling | doaj.art-f8ccad492cf84f59b773f71c31df89ab2022-12-22T02:58:04ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-0576148826836N<sub>2</sub> and M<sub>2</sub> lunar tides: atmospheric resonance revisitedC. E. MeekA. H. MansonJ. M. ForbesR. J. SteningD. M. SchlappR. A. VincentA numerical model has been used to calculate the atmospheric response to forcing at periods in the region of 12-13.5 h. The results show that the response is enhanced in the neighbourhood of 13 h. These results have been compared with lunar tidal analyses of mesospheric wind data and geomagnetic variations at a number of stations. It is found that the N<sub>2</sub> lunar tidal component (period 12.66 h) is significantly enhanced relative to the main lunar tidal component M<sub>2</sub> (period 12.42 h) in both types of data, compared with what would be expected from the gravitational tidal potential. This supports the predictions of the numerical model. An appreciable phase shift is also found in the experimental data between the N<sub>2</sub> and M<sub>2</sub> tides, agreeing in sense with what would be expected for a resonance at a period around 13 h.http://www.ann-geophys.net/14/826/1996/angeo-14-826-1996.html |
| spellingShingle | C. E. Meek A. H. Manson J. M. Forbes R. J. Stening D. M. Schlapp R. A. Vincent N<sub>2</sub> and M<sub>2</sub> lunar tides: atmospheric resonance revisited Annales Geophysicae |
| title | N<sub>2</sub> and M<sub>2</sub> lunar tides: atmospheric resonance revisited |
| title_full | N<sub>2</sub> and M<sub>2</sub> lunar tides: atmospheric resonance revisited |
| title_fullStr | N<sub>2</sub> and M<sub>2</sub> lunar tides: atmospheric resonance revisited |
| title_full_unstemmed | N<sub>2</sub> and M<sub>2</sub> lunar tides: atmospheric resonance revisited |
| title_short | N<sub>2</sub> and M<sub>2</sub> lunar tides: atmospheric resonance revisited |
| title_sort | n sub 2 sub and m sub 2 sub lunar tides atmospheric resonance revisited |
| url | http://www.ann-geophys.net/14/826/1996/angeo-14-826-1996.html |
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