Precursors to atmospheric blocking events
Thesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2008.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2018
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| Online Access: | http://hdl.handle.net/1721.1/114345 |
| _version_ | 1811098398467555328 |
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| author | Marino, Garrett P |
| author2 | Lodovica Illari. |
| author_facet | Lodovica Illari. Marino, Garrett P |
| author_sort | Marino, Garrett P |
| collection | MIT |
| description | Thesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2008. |
| first_indexed | 2024-09-23T17:14:22Z |
| format | Thesis |
| id | mit-1721.1/114345 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T17:14:22Z |
| publishDate | 2018 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1143452019-04-12T07:30:26Z Precursors to atmospheric blocking events Marino, Garrett P Lodovica Illari. Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences. Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences. Earth, Atmospheric, and Planetary Sciences. Thesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2008. Cataloged from PDF version of thesis. Includes bibliographical references (pages 51-55). Atmospheric blocking disturbs synoptic-scale features from their normal eastward progression, causing extreme weather conditions for the duration of the blocking event. Blocking precursors, as indicators of meridional flow preceding the onset of strong Atlantic blocking episodes, have been identified by using a modified version of the Tibaldi and Molteni blocking index (1990). Hovmoller diagrams of the modified index were found to be particularly useful in finding the potential cases, clearly showing a precursor signal propagating from the western United States down to the Atlantic to initiate the blocking pattern. A composite of the 14 cases identified showed the precursor pattern to be consistent with the positive phase of the PNA, while the composite mature phase of Atlantic blocking resembles the negative NAO and AO phases. The results suggest that blocking is a global, rather than localized, phenomenon. by Garrett P. Marino. S.B. 2018-03-27T14:18:28Z 2018-03-27T14:18:28Z 2008 2008 Thesis http://hdl.handle.net/1721.1/114345 1028750157 eng MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission. http://dspace.mit.edu/handle/1721.1/7582 56 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Earth, Atmospheric, and Planetary Sciences. Marino, Garrett P Precursors to atmospheric blocking events |
| title | Precursors to atmospheric blocking events |
| title_full | Precursors to atmospheric blocking events |
| title_fullStr | Precursors to atmospheric blocking events |
| title_full_unstemmed | Precursors to atmospheric blocking events |
| title_short | Precursors to atmospheric blocking events |
| title_sort | precursors to atmospheric blocking events |
| topic | Earth, Atmospheric, and Planetary Sciences. |
| url | http://hdl.handle.net/1721.1/114345 |
| work_keys_str_mv | AT marinogarrettp precursorstoatmosphericblockingevents |