| Presentation | 2003/8/22 Ocean acoustic environment and the ecology of whales Jun NAOI, Toshio TSUCHIYA, Toshiaki KIKUCHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Whales has used a sound wave for mutual communication or for looking for food long before humans started to use sound for oceanographic observation. The frequency band is low frequency ranging from tens of hertz that is capable of long-distance communication to hundreds of hertz. In this report, we focused on whales that wander about the ocean over a long distance and studied the propagation characteristics of a sound wave from the polar zone to low latitudes. As a result of this research, we referred to the possibility that the whales might use a shoals or seamount to receive SOFAR signals. We also studied the relationship between the littoral sea bottom structure and sound wave propagation from the point of view of a ambient noise about the problem that whales are stranded on the shore in many parts of the world. Consequently, it became clear that low frequency sound waves propagate to the coast without decaying if the structure has sediments below the bottom of the sea. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | sound propagation / SOFAR / Ambient noise / whale / strand |
| Paper # | US2003-35 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2003/8/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Ocean acoustic environment and the ecology of whales |
| Sub Title (in English) | |
| Keyword(1) | sound propagation |
| Keyword(2) | SOFAR |
| Keyword(3) | Ambient noise |
| Keyword(4) | whale |
| Keyword(5) | strand |
| 1st Author's Name | Jun NAOI |
| 1st Author's Affiliation | Japan Marine Science and Technology Center() |
| 2nd Author's Name | Toshio TSUCHIYA |
| 2nd Author's Affiliation | Advanced Earth Science and Technology Organization |
| 3rd Author's Name | Toshiaki KIKUCHI |
| 3rd Author's Affiliation | Japan Marine Science and Technology Center |
| Date | 2003/8/22 |
| Paper # | US2003-35 |
| Volume (vol) | vol.103 |
| Number (no) | 277 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |