Waves off Gopalpur, northern Bay of Bengal during Cyclone Phailin
The wave statistical parameters during Cyclone Phailin which crossed the northern Bay of Bengal are described based on the Directional Waverider buoy-measured wave data from 8 to 13 October 2013. On 12 October 2013, the cyclone passed within 70 km of the Waverider buoy location with a wind speed...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2014-09-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/32/1073/2014/angeo-32-1073-2014.pdf |
| _version_ | 1828232938760699904 |
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| author | M. M. Amrutha V. Sanil Kumar T. R. Anoop T. M. Balakrishnan Nair A. Nherakkol C. Jeyakumar |
| author_facet | M. M. Amrutha V. Sanil Kumar T. R. Anoop T. M. Balakrishnan Nair A. Nherakkol C. Jeyakumar |
| author_sort | M. M. Amrutha |
| collection | DOAJ |
| description | The wave statistical parameters during Cyclone Phailin which crossed the
northern Bay of Bengal are described based on the Directional Waverider
buoy-measured wave data from 8 to 13 October 2013. On 12 October 2013, the cyclone
passed within 70 km of the Waverider buoy location with a wind speed of
59.2 m s<sup>−1</sup> (115 knots), and during this period, a maximum significant wave
height of 7.3 m and a maximum wave height of 13.5 m were measured at 50 m
water depth. Eight freak wave events are observed during the study period.
The ratio of the maximum wave height to significant wave height recorded
is found to be higher than the theoretical value and the ratio of the crest
height to wave height during the cyclone was 0.6 to 0.7. The characteristics
of the wave spectra before and after the cyclone is studied and found that
the high-frequency face of the wave spectrum is proportional to <i>f</i><sup>−3</sup>
before the cyclone and is between <i>f</i><sup>−4</sup> and <i>f</i><sup>−5</sup> during the cyclone
period. |
| first_indexed | 2024-04-12T19:30:07Z |
| format | Article |
| id | doaj.art-cc9b187fec2f4f309155f545ab849e08 |
| institution | Directory Open Access Journal |
| issn | 0992-7689 1432-0576 |
| language | English |
| last_indexed | 2024-04-12T19:30:07Z |
| publishDate | 2014-09-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Annales Geophysicae |
| spelling | doaj.art-cc9b187fec2f4f309155f545ab849e082022-12-22T03:19:22ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05762014-09-01321073108310.5194/angeo-32-1073-2014Waves off Gopalpur, northern Bay of Bengal during Cyclone PhailinM. M. Amrutha0V. Sanil Kumar1T. R. Anoop2T. M. Balakrishnan Nair3A. Nherakkol4C. Jeyakumar5Council of Scientific and Industrial Research – National Institute of Oceanography, Dona Paula 403004, Goa, IndiaCouncil of Scientific and Industrial Research – National Institute of Oceanography, Dona Paula 403004, Goa, IndiaCouncil of Scientific and Industrial Research – National Institute of Oceanography, Dona Paula 403004, Goa, IndiaIndian National Centre for Ocean Information Services (Ministry of Earth Sciences), "Ocean Valley", Pragathi Nagar (BO), Nizampet (SO) 500090, Hyderabad, IndiaIndian National Centre for Ocean Information Services (Ministry of Earth Sciences), "Ocean Valley", Pragathi Nagar (BO), Nizampet (SO) 500090, Hyderabad, IndiaIndian National Centre for Ocean Information Services (Ministry of Earth Sciences), "Ocean Valley", Pragathi Nagar (BO), Nizampet (SO) 500090, Hyderabad, IndiaThe wave statistical parameters during Cyclone Phailin which crossed the northern Bay of Bengal are described based on the Directional Waverider buoy-measured wave data from 8 to 13 October 2013. On 12 October 2013, the cyclone passed within 70 km of the Waverider buoy location with a wind speed of 59.2 m s<sup>−1</sup> (115 knots), and during this period, a maximum significant wave height of 7.3 m and a maximum wave height of 13.5 m were measured at 50 m water depth. Eight freak wave events are observed during the study period. The ratio of the maximum wave height to significant wave height recorded is found to be higher than the theoretical value and the ratio of the crest height to wave height during the cyclone was 0.6 to 0.7. The characteristics of the wave spectra before and after the cyclone is studied and found that the high-frequency face of the wave spectrum is proportional to <i>f</i><sup>−3</sup> before the cyclone and is between <i>f</i><sup>−4</sup> and <i>f</i><sup>−5</sup> during the cyclone period.https://www.ann-geophys.net/32/1073/2014/angeo-32-1073-2014.pdf |
| spellingShingle | M. M. Amrutha V. Sanil Kumar T. R. Anoop T. M. Balakrishnan Nair A. Nherakkol C. Jeyakumar Waves off Gopalpur, northern Bay of Bengal during Cyclone Phailin Annales Geophysicae |
| title | Waves off Gopalpur, northern Bay of Bengal during Cyclone Phailin |
| title_full | Waves off Gopalpur, northern Bay of Bengal during Cyclone Phailin |
| title_fullStr | Waves off Gopalpur, northern Bay of Bengal during Cyclone Phailin |
| title_full_unstemmed | Waves off Gopalpur, northern Bay of Bengal during Cyclone Phailin |
| title_short | Waves off Gopalpur, northern Bay of Bengal during Cyclone Phailin |
| title_sort | waves off gopalpur northern bay of bengal during cyclone phailin |
| url | https://www.ann-geophys.net/32/1073/2014/angeo-32-1073-2014.pdf |
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