A modal analysis of acoustic propagation in the changing Arctic environment
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.
| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2016
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| Online Access: | http://hdl.handle.net/1721.1/101542 |
| _version_ | 1826197466781843456 |
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| author | Howe, Thomas (Thomas Ryan) |
| author2 | Henrik Schmidt. |
| author_facet | Henrik Schmidt. Howe, Thomas (Thomas Ryan) |
| author_sort | Howe, Thomas (Thomas Ryan) |
| collection | MIT |
| description | Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015. |
| first_indexed | 2024-09-23T10:48:26Z |
| format | Thesis |
| id | mit-1721.1/101542 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T10:48:26Z |
| publishDate | 2016 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1015422019-04-10T09:59:40Z A modal analysis of acoustic propagation in the changing Arctic environment Howe, Thomas (Thomas Ryan) Henrik Schmidt. Massachusetts Institute of Technology. Department of Mechanical Engineering. Massachusetts Institute of Technology. Department of Mechanical Engineering. Mechanical Engineering. Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015. Cataloged from PDF version of thesis. Includes bibliographical references (page 59). This work takes an in depth look at acoustic propagation through double duct sound speed profiles in the Arctic. While the traditional Arctic sound speed profile has a single surface duct, some portions of the Arctic have a sound speed profile which includes a second, lower duct. These double duct systems are seen through out the Beaufort Sea, dating back to 2004, in data made available by the Ice-Tethered Profiler program at the Woods Hole Oceanographic Institutes. The acoustic propagation through the double duct system is analyzed using normal mode analysis, through the Kraken normal mode code. A simulated lower duct is introduced in order to isolate only those modes which travel within the lower duct. Propagation through the lower duct is compared to propagation in traditional Arctic sound speed profiles, and for certain ducts distinct increases in propagation strength are shown. by Thomas Howe. S.M. 2016-03-03T21:07:46Z 2016-03-03T21:07:46Z 2015 2015 Thesis http://hdl.handle.net/1721.1/101542 940562680 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 91 pages application/pdf r------ Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Howe, Thomas (Thomas Ryan) A modal analysis of acoustic propagation in the changing Arctic environment |
| title | A modal analysis of acoustic propagation in the changing Arctic environment |
| title_full | A modal analysis of acoustic propagation in the changing Arctic environment |
| title_fullStr | A modal analysis of acoustic propagation in the changing Arctic environment |
| title_full_unstemmed | A modal analysis of acoustic propagation in the changing Arctic environment |
| title_short | A modal analysis of acoustic propagation in the changing Arctic environment |
| title_sort | modal analysis of acoustic propagation in the changing arctic environment |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/101542 |
| work_keys_str_mv | AT howethomasthomasryan amodalanalysisofacousticpropagationinthechangingarcticenvironment AT howethomasthomasryan modalanalysisofacousticpropagationinthechangingarcticenvironment |