Nonlinear anticyclone structures in the Earth's atmosphere
We present some results of the study of nonlinear vortex structures in the Earth's atmosphere known as blocking-anticyclones. It is shown that synoptic-scale structure can be considered in the geostrophic approximation in terms of the Charney-Obukhov equation. The numerical scheme based on the...
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| Veröffentlicht in: | Advances in Astronomy and Space Physics |
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| Datum: | 2011 |
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| Format: | Artikel |
| Sprache: | Englisch |
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Advances in astronomy and space physics
2011
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/118973 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Nonlinear anticyclone structures in the Earth's atmosphere / D. Saliuk, O. Agapitov // Advances in Astronomy and Space Physics. — 2011. — Т. 1., вип. 1-2. — С. 69-72. — Бібліогр.: 5 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862647740747481088 |
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| author | Saliuk, D. Agapitov, O. |
| author_facet | Saliuk, D. Agapitov, O. |
| citation_txt | Nonlinear anticyclone structures in the Earth's atmosphere / D. Saliuk, O. Agapitov // Advances in Astronomy and Space Physics. — 2011. — Т. 1., вип. 1-2. — С. 69-72. — Бібліогр.: 5 назв. — англ. |
| collection | DSpace DC |
| container_title | Advances in Astronomy and Space Physics |
| description | We present some results of the study of nonlinear vortex structures in the Earth's atmosphere known as blocking-anticyclones. It is shown that synoptic-scale structure can be considered in the geostrophic approximation in terms of the Charney-Obukhov equation. The numerical scheme based on the full reduction method is proposed to study the dynamics of the initial perturbations. The dominant role of the vector nonlinearity for the vortex structures stability is shown. In the absence of the nonlinearity the vortex structures are unstable and quickly decompose into the linear Rossby waves. The linear and nonlinear anticyclone structures dynamics in the Earth's atmosphere were studied using the data from NCEP(National Centers for Environmental Prediction) / NCAR (National Center for Atmospheric Research) data base - pressure, geopotential, temperature, wind velocity. Blocking anticyclones exist during a long time (typical lifetime is from 5 days to a month), while linear anticyclone exist few days (up to 5 days). Conventional synoptic anticyclone usually moves eastward but blocking anticyclones usually move westward (or stay on the same place in the zonal flow). It was also found that blocking anticyclones have larger amplitude of temperature and pressure perturbations, so the impact of the blocking anticyclone on the formation of weather is larger.
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| first_indexed | 2025-12-01T13:55:21Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-118973 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| isbn | 987-966-439-367-3 |
| language | English |
| last_indexed | 2025-12-01T13:55:21Z |
| publishDate | 2011 |
| publisher | Advances in astronomy and space physics |
| record_format | dspace |
| spelling | Saliuk, D. Agapitov, O. 2017-06-02T18:11:50Z 2017-06-02T18:11:50Z 2011 Nonlinear anticyclone structures in the Earth's atmosphere / D. Saliuk, O. Agapitov // Advances in Astronomy and Space Physics. — 2011. — Т. 1., вип. 1-2. — С. 69-72. — Бібліогр.: 5 назв. — англ. 987-966-439-367-3 https://nasplib.isofts.kiev.ua/handle/123456789/118973 We present some results of the study of nonlinear vortex structures in the Earth's atmosphere known as blocking-anticyclones. It is shown that synoptic-scale structure can be considered in the geostrophic approximation in terms of the Charney-Obukhov equation. The numerical scheme based on the full reduction method is proposed to study the dynamics of the initial perturbations. The dominant role of the vector nonlinearity for the vortex structures stability is shown. In the absence of the nonlinearity the vortex structures are unstable and quickly decompose into the linear Rossby waves. The linear and nonlinear anticyclone structures dynamics in the Earth's atmosphere were studied using the data from NCEP(National Centers for Environmental Prediction) / NCAR (National Center for Atmospheric Research) data base - pressure, geopotential, temperature, wind velocity. Blocking anticyclones exist during a long time (typical lifetime is from 5 days to a month), while linear anticyclone exist few days (up to 5 days). Conventional synoptic anticyclone usually moves eastward but blocking anticyclones usually move westward (or stay on the same place in the zonal flow). It was also found that blocking anticyclones have larger amplitude of temperature and pressure perturbations, so the impact of the blocking anticyclone on the formation of weather is larger. We would like to thank Atmospheric Research NCEP / NCAR data service for atmospheric data. en Advances in astronomy and space physics Advances in Astronomy and Space Physics Nonlinear anticyclone structures in the Earth's atmosphere Article published earlier |
| spellingShingle | Nonlinear anticyclone structures in the Earth's atmosphere Saliuk, D. Agapitov, O. |
| title | Nonlinear anticyclone structures in the Earth's atmosphere |
| title_full | Nonlinear anticyclone structures in the Earth's atmosphere |
| title_fullStr | Nonlinear anticyclone structures in the Earth's atmosphere |
| title_full_unstemmed | Nonlinear anticyclone structures in the Earth's atmosphere |
| title_short | Nonlinear anticyclone structures in the Earth's atmosphere |
| title_sort | nonlinear anticyclone structures in the earth's atmosphere |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/118973 |
| work_keys_str_mv | AT saliukd nonlinearanticyclonestructuresintheearthsatmosphere AT agapitovo nonlinearanticyclonestructuresintheearthsatmosphere |