Observed Seasonal Variation Of Wave Power From Moored Buoy Measurements - A Case Study On The East Coast of India

Authors

  • Kalyani Manthripragada National Institute of Ocean Technology, Chennai
  • Jossia K Joseph National Institute of Ocean Technology, Chennai
  • Arul Muttiah M National Institute of Ocean Technology, Chennai
  • Sudhakar Tata National Institute of Ocean Technology, Chennai

DOI:

https://doi.org/10.37591/joost.v10i1.1405

Keywords:

Moored buoy, significant wave height, energy period, wave power, seasonal variation

Abstract

The wave climate in Indian waters is strongly influenced by the seasonal variation. Accurate wave height assessment is crucial for wave power computation which is proportional to square of the significant wave height. Any error in wave height is magnified in the wave power estimation. Wave models tend to predict medium range wave activity to a desired degree. Insufficient wind, bathymetry and grid resolutions, model physics parameterizations also account for the errors. Wave models generally employ linearization approximations to reduce the huge computational burden which tends to show higher deviations from measurements during high intensity cyclones and peak monsoonal wave conditions. Globally, due to climate change effects, cyclones are occurring more frequently with high intensities. Hence, wave models have to be validated with measurements before they are used for wave power assessment, or to use model derived parameters in the design of wave energy converters in order to withstand the high intensity cyclones.  In this study, the seasonal variation of wave power on the East coast of India, off Machilipattinam has been evaluated from a year-long in-situ observations from National Institute of Ocean Technology moored buoy deployed in deep waters. The variation of wave power during the cyclones captured by the buoy has also been discussed.

 

Author Biographies

  • Kalyani Manthripragada, National Institute of Ocean Technology, Chennai

    Scientist-D

    Ocean Observations Systems Group

  • Jossia K Joseph, National Institute of Ocean Technology, Chennai

    Scientist-E

    Ocean Observation Systems Group

  • Arul Muttiah M, National Institute of Ocean Technology, Chennai

    Scientist-F

    Ocean Observation Systems Group

  • Sudhakar Tata, National Institute of Ocean Technology, Chennai

    Scientist-G

    Group Head

    Ocean Observation Systems Group

References

Lenee-Bluhm P, Paasch RH, Özkan-Haller. T Characterizing the wave energy resource of the US Pacific Northwest. Renewable Energy.2011; 36:2106-14p

Arinaga RA, Cheung KF. Atlas of global wave energy from 10 years of reanalysis and hind cast data. Renewable Energy.2012; 39:49-26p.

Kumar VS, Anoop TR. Wave energy resource assessment for the Indian shelf seas. Renewable Energy.2015; 76:212-8p.

Kumar VS, Jossia KJ, Amrutha MM, et al. Seasonal and interannual changes of significant wave height in shelf seas around India during 1998–2012 based on the wave hind cast. Ocean Engineering.2018; 151:127-14p.

Murphy GL, Martín Míguez B, McIlvenny J, et al. Wave energy resource assessment with AltiKa satellite altimetry: A case study at a wave energy site. Geophys. Res. Lett. 2015;42:5452–8p. Doi:10.1002/2015GL064490.

Cahill BG, Lewis T. Wave energy resource characterization of the Atlantic Marine Energy Test Site. Int. J. Mar. Energy. 2013;1:3–13p. Doi:10.1016/j.ijome.2013.05.001.

Cahill BG, Lewis T. Wave period ratios and the calculation of wave power. In: METS2014. 2nd Marine Energy Technology Symposium; 2014 April 15-18; Seattle, WA: Virginia Tech; 1992. 1-10p

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Published

2023-06-17

Issue

Vol. 10 No. 1 (2023)

Section

Research Article

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