Abstract
The predominance of swells or wind-seas at a location can be inferred from the spectral peak wave period (Tp). The present study examines the climatology of Tp and its variability in the Bay of Bengal (BoB) during the last 40 years based on reanalysis data. The Andaman and Nicobar Islands and Sri Lanka significantly alter the spatial distribution of Tp in the BoB. Spatial variation in Tp was less than 10% for 1° latitude, except for regions blocked by the landmass. Inter-annual changes in the annual average Tp were 8–18% at different locations. In most areas, climatological monthly Tp was largest in March, April, and October, when the winds were weak. The high Tp tongue extends to the BoB through the eastern side of the bay. The study also examines the relationship between three major natural climate variabilities; El Niño–Southern Oscillation (ENSO), Indian Ocean Dipole (IOD), and Southern Annular Mode (SAM) with Tp anomalies in the BoB. We observed that negative ENSO and SAM events enhance the long-period waves in the BoB, while a negative IOD event generates more short-period waves in the BoB.
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References
Aderinto T, Li H (2019) Review on power performance and efficiency of wave energy converters. Energies 12(22):4329. https://doi.org/10.3390/en12224329
Alves J-HGM (2006) Numerical modeling of ocean swell contributions to the global wind-wave climate. Ocean Model 11:98–122
Amante C, Eakins B (2008) ETOPO1 1 arc-minute global relief model: procedures, data sources and analysis (DOC/NOAA/NESDIS/NGDC)
Amrutha MM, Kumar VS, Anoop TR, Nair TMB, Nherakkol A, Jeyakumar C (2014) Waves off Gopalpur, northern Bay of Bengal during the Cyclone Phailin. Ann Geophys 32:1073–1083. https://doi.org/10.5194/angeo-32-1073-2014
Anjali Nair M, Kumar VS, Amrutha MM (2018) Spectral wave characteristics in the nearshore waters of northwestern Bay of Bengal. Pure Appl Geophys 175:3111–3136. https://doi.org/10.1007/s00024-018-1838-5
Anjali Nair M, Kumar VS, Amrutha MM, Murty VSN (2019) Features of locally and remotely generated surface gravity waves in the inner-shelf region of northwestern Bay of Bengal. Int J Climatol 39:1644–1664. https://doi.org/10.1002/joc.5907
Anoop TR, Kumar VS, Shanas PR, Johnson G (2015) Surface wave climatology and its variability in the North Indian Ocean based on ERA-Interim reanalysis. J Atmos Ocean Technol 32(7):1372–1385. https://doi.org/10.1175/JTECH-D-14-00212.1
Belmadani A, Dalphinet A, Chauvin F et al (2021) Projected future changes in tropical cyclone-related wave climate in the North Atlantic. Clim Dyn 56:3687–3708. https://doi.org/10.1007/s00382-021-05664-5
Chakrabarti SK (2005) Handbook of offshore engineering, Elsevier, 79-131, ISBN 9780080443812.https://doi.org/10.1016/B978-008044381-2.50006-0
Darbyshire J (1952) The generation of waves by wind. Proc R Soc Lond 215:299–328. https://doi.org/10.1098/rspa.1952.0213
Dattatri J, Raman H, Shankar NJ (1979) Height and period distributions for waves off Mangalore Harbour—west coast. J Geophys Res 84(C7):3767–3772. https://doi.org/10.1029/JC084iC07p03767
Fu C, Wang D, Yang L, Luo Y, Zhou F, Priyadarshana T, Yao J (2018) The relationship between significant wave height and Indian Ocean Dipole in the equatorial North Indian Ocean. Ocean Dyn 68:689–699. https://doi.org/10.1007/s10236-018-1154-8
George J, Kumar VS (2020) Climatology of wave period in the Arabian Sea and its variability during the recent 40 years. Ocean Eng 216:108014. https://doi.org/10.1016/j.oceaneng.2020.108014
Glejin J, Kumar VS, Nair TMB (2013) Monsoon and cyclone induced wave climate over the near shore waters off Puduchery, south western Bay of Bengal. Ocean Eng 72:277–286. https://doi.org/10.1016/j.oceaneng.2013.07.013
Goda Y (2010) Random seas and design of maritime structures. World Scientific. https://www.worldscientific.com/doi/abs/10.1142/7425
Godoi VA, de Andrade FM, Durrant TH, Júnior ART (2020) What happens to the ocean surface gravity waves when ENSO and MJO phases combine during the extended boreal winter? Clim Dyn 54:1407–1424. https://doi.org/10.1007/s00382-019-05065-9
Godoi VA, Torres Júnior AR (2020) A global analysis of austral summer ocean wave variability during SAM–ENSO phase combinations. Clim Dyn. https://doi.org/10.1007/s00382-020-05217-2
Gong D, Wang S (1999) Definition of Antarctic Oscillation index. Geophys Res Lett 26(4):459–462. https://doi.org/10.1029/1999GL900003
Hameed TSS, Baba M (1985) Wave height distribution in shallow water. Ocean Eng 12(4):309–319. https://doi.org/10.1016/0029-8018(85)90070-8
Hersbach H, Bell B, Berrisford P, Hirahara S, Horányi A, Muñoz-Sabater J, Thépaut JN (2020) The ERA5 global reanalysis. Q J R Meteorol Soc 146(730):1999–2049
Kamranzad B, Mori N (2019) Future wind and wave climate projections in the Indian Ocean based on a super-high-resolution MRI-AGCM3.2S model projection. Clim Dyn 53:2391–2410. https://doi.org/10.1007/s00382-019-04861-7
Kumar P, Kaur S, Weller E, Min SK (2019) Influence of natural climate variability on the extreme ocean surface wave heights over the Indian Ocean. J Geophys Res Oceans 124(8):6176–6199
Kumar VS, Anand NM, Ashok Kumar K, Mandal S (2003) Multipeakedness and groupiness of shallow water waves along Indian coast. J Coast Res 19(4):1052–1065. www.jstor.org/stable/4299248.
Kumar VS, Anand NM, Gowthaman R (2002) Variations in nearshore processes along Nagapatttinam coast, India. Curr Sci (India) 82:1381–1389
Kumar VS, Deo MC, Anand NM, Chandramohan P (1999) Estimation of wave directional spreading in shallow water. Ocean Eng 26(2):83–98
Kumar VS, George J, Joseph D (2020) Hourly maximum individual wave height in the Indian shelf seas - its spatial and temporal variations in recent 40 years. Ocean Dyn. https://doi.org/10.1007/s10236-020-01395-z
Kumar VS, Glejin J, Dubhashi KK, Nair TMB (2013) Waves off Puducherry, Bay of Bengal, during cyclone Thane. Nat Hazards 69:509–522. https://doi.org/10.1007/s11069-013-0713-z
Marshall AG, Hemer MA, Hendon HH, McInnes KL (2018) Southern annular mode impacts on global ocean surface waves. Ocean Model 129:58–74. https://doi.org/10.1016/j.ocemod.2018.07.007
Marshall GJ (2003) Trends in the Southern Annular Mode from observations and reanalyses. J Clim 16:4134–4143
Mishra P, Patra SK, Murthy R, Mohanthy PK, Panda US (2011) Interaction of monsoonal wave current and tide near Gopalpur, east coast of India and their impact on beach profile: a case study. Nat Hazards 59:1145–1159
Naseef TM, Kumar VS (2020) Climatology and trends of the Indian Ocean surface waves based on 39-year long ERA5 reanalysis data. Int J Climatol 40:979–1006. https://doi.org/10.1002/joc.6251
Patra A, Bhaskaran PK (2016) Trends in wind-wave climate over the head Bay of Bengal region. Int J Climatol 36:4222–4240. https://doi.org/10.1002/joc.4627
Remya PG, Kumar BP, Srinivas G, Nair TMB (2020) Impact of tropical and extra tropical climate variability on Indian Ocean surface waves. Clim Dyn 54:4919–4933. https://doi.org/10.1007/s00382-020-05262-x
Sabique L, Annapurnaiah K, Nair TMB, Srinivas K (2012) Contribution of Southern Indian Ocean swells on the wave heights in the Northern Indian Ocean-a modelling study. Ocean Eng 43:113–120
Saji NH, Goswami BN, Vinayachandran PN, Yamagata T (1999) A dipole mode in the tropical Indian Ocean. Nature 401(6751):360–363
Schott F, McCreary JP (2001) The monsoon circulation of the Indian Ocean. Progress Oceanogr 51:1–123. https://doi.org/10.1016/S0079-6611(01)00083-0
Singh K, Panda J, Sahoo M et al (2019) Variability in tropical cyclone climatology over North Indian Ocean during the Period 1891 to 2015. Asia-Pac J Atmos Sci 55:269–287. https://doi.org/10.1007/s13143-018-0069-0
Shanas PR, Kumar VS (2015) Trends in surface wind speed and significant wave height as revealed by ERA-Interim wind wave hindcast in the Central Bay of Bengal. Int J Climatol 35:2654–2663. https://doi.org/10.1002/joc.4164
Shetye SR, Shenoi SSC, Gouveia AD, Michael GS, Sundar D, Nampoothiri G (1991) Wind-driven coastal upwelling along the western boundary of the Bay of Bengal during the southwest monsoon. Cont Shelf Res 11:1397–1408. https://doi.org/10.1016/0278-4343(91)90042-5
Umesh PA, Bhaskaran PK, Sandhya KG, Nair TMB (2018) High frequency tail characteristics in the coastal waters off Gopalpur, northwest Bay of Bengal: a nearshore modelling study. Pure Appl Geophys 175:2351–2379
Walker GT, Bliss EW (1932) World weather V. Mem R Meteorol Soc 4(36):53–84
Wilson SS, Joseph PV, Mohanakumar K, Johannessen OM (2018) Interannual and long term variability of low level jetstream of the Asian summer monsoon. Tellus A Dyn Meteorol Oceanogr 70(1):1–9
Zheng CW, Li CY, Pan J (2018) Propagation route and speed of swell in the Indian Ocean. J Geophys Res Oceans 123:8–21. https://doi.org/10.1002/2016JC012585
Acknowledgements
We acknowledge ECMWF for the availability of ERA5 data. ERA5 data used in this study are downloaded from the ECMWF data server: http://data.ecmwf.int/data. The authors thank both the reviewers for their comments and suggestions, which improved the scientific content of the paper. This publication is a CSIR-NIO contribution 6768.
Funding
The authors acknowledge the Council of Scientific and Industrial Research, New Delhi, for funding the research work. The wave rider buoy data used in the study are from a project funded by the Indian National Centre for Ocean Information Services, Ministry of earth sciences, New Delhi.
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George, J., Kumar, V.S. Spectral peak wave period climatology and its relationship with natural climate variability over the Bay of Bengal. Ocean Dynamics 71, 871–892 (2021). https://doi.org/10.1007/s10236-021-01473-w
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DOI: https://doi.org/10.1007/s10236-021-01473-w