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Wave Forecasting and Monitoring during very Severe Cyclone Phailin in the Bay of Bengal


Affiliations
1 Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
2 CSIR-National Institute of Oceanography, Dona Paula, Goa 403 004, India
3 Earth System Science Organization, New Delhi 110 003, India
 

Wave fields, both measured and forecast during the very severe cyclone Phailin, are discussed in this communication. Waves having maximum height of 13.54 m were recorded at Gopalpur, the landfall point of the cyclone. The forecast and observed significant wave heights matched well at Gopalpur with correlation coefficient of 0.98, RMS e rror of 0.35 m and scatter index of 14%. Forecasts were also validated in the open ocean and found to be reliable (scatter index < 15%). The study also revealed the presence of Southern Ocean swells with a peak period of 20-22 sec hitting Gopalpur coast along with the cyclone-generated waves.

Keywords

Buoys, Phailin, Tropical Cyclone, Swell, Wave Forecast.
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  • Wave Forecasting and Monitoring during very Severe Cyclone Phailin in the Bay of Bengal

Abstract Views: 454  |  PDF Views: 140

Authors

T. M. Balakrishnan Nair
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
P. G. Remya
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
R. Harikumar
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
K. G. Sandhya
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
P. Sirisha
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
K. Srinivas
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
C. Nagaraju
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
Arun Nherakkol
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
B. Krishna Prasad
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
C. Jeyakumar
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
K. Kaviyazhahu
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
N. K. Hithin
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
Rakhi Kumari
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
V. Sanil Kumar
CSIR-National Institute of Oceanography, Dona Paula, Goa 403 004, India
M. Ramesh Kumar
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
S. S. C. Shenoi
Information Services and Ocean Sciences Group, ESSO-Indian National Centre for Ocean Information Services, 'Ocean Valley', Pragathi Nagar (BO), Nizampet (SO), Hyderabad 500 090, India
Shailesh Nayak
Earth System Science Organization, New Delhi 110 003, India

Abstract


Wave fields, both measured and forecast during the very severe cyclone Phailin, are discussed in this communication. Waves having maximum height of 13.54 m were recorded at Gopalpur, the landfall point of the cyclone. The forecast and observed significant wave heights matched well at Gopalpur with correlation coefficient of 0.98, RMS e rror of 0.35 m and scatter index of 14%. Forecasts were also validated in the open ocean and found to be reliable (scatter index < 15%). The study also revealed the presence of Southern Ocean swells with a peak period of 20-22 sec hitting Gopalpur coast along with the cyclone-generated waves.

Keywords


Buoys, Phailin, Tropical Cyclone, Swell, Wave Forecast.



DOI: https://doi.org/10.18520/cs%2Fv106%2Fi8%2F1121-1125